Indianapolis, Indiana Weather Conditions

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Current Conditions

  • 39°
  • Overcast
  • Wind: SE 12 mph
  • Humidity: 79%
  • Visibility: 10.0 miles
  • Dew Point: 33°
  • Pressure: 29.86 in. -
  • Heat Index: 32

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Next 12 Hours

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10  pm
1  am
Chance of Rain
Chance of Rain
Chance of Rain
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Rain
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37°
41°
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Chance of Rain
  • High: 43 °
  • Low: 43 °
  • Chance of Rain
  • Tuesday
  • Chance of Rain
  • High: 48 °
  • Low: 39 °
  • Chance of Rain
  • Wednesday
  • Chance of Snow
  • High: 43 °
  • Low: 30 °
  • Chance of Snow
  • Thursday
  • Partly Cloudy
  • High: 37 °
  • Low: 28 °
  • Partly Cloudy
  • Friday
  • Fog
  • High: 41 °
  • Low: 36 °
  • Fog

Forecast for Indianapolis, Indiana

Updated: 10:00 AM EST on December 22, 2014

  • Monday

    Overcast with a chance of rain in the afternoon. High of 43F. Winds from the SE at 5 to 15 mph. Chance of rain 40%.

  • Monday Night

    Overcast with rain. Low of 43F. Breezy. Winds from the SE at 10 to 20 mph. Chance of rain 90% with rainfall amounts near 0.3 in. possible.

  • Tuesday

    Overcast with a chance of rain. Fog early. High of 48F. Winds from the SSW at 10 to 15 mph. Chance of rain 50%.

  • Tuesday Night

    Overcast with a chance of rain, then rain after midnight. Low of 39F. Winds from the SSE at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Wednesday

    Overcast with rain, then a chance of snow and rain in the afternoon. Fog early. High of 43F. Winds from the NNW at 10 to 15 mph. Chance of precipitation 70% with accumulations up to 2 in. possible.

  • Wednesday Night

    Overcast with a chance of snow and a chance of rain. Low of 30F. Breezy. Winds from the West at 15 to 20 mph. Chance of snow 50%.

  • Thursday

    Overcast in the morning, then partly cloudy. Fog early. High of 37F with a windchill as low as 14F. Winds from the WSW at 10 to 15 mph.

  • Thursday Night

    Partly cloudy. Low of 28F. Winds from the SSW at 10 to 15 mph.

  • Friday

    Mostly cloudy in the morning, then overcast. Fog early. High of 41F. Breezy. Winds from the South at 15 to 20 mph.

  • Friday Night

    Mostly cloudy. Fog overnight. Low of 36F with a windchill as low as 27F. Breezy. Winds from the SSW at 15 to 20 mph.

  • Saturday

    Mostly cloudy with a chance of rain. High of 41F. Breezy. Winds from the WSW at 15 to 20 mph. Chance of rain 20%.

  • Saturday Night

    Partly cloudy. Low of 25F with a windchill as low as 16F. Winds from the West at 10 to 15 mph.

  • Sunday

    Partly cloudy. High of 30F. Winds less than 5 mph.

  • Sunday Night

    Overcast. Low of 19F with a windchill as low as 12F. Winds from the ESE at 5 to 10 mph.

  • Monday

    Overcast. Fog early. High of 30F with a windchill as low as 14F. Winds from the SSW at 10 to 15 mph.

  • Monday Night

    Overcast. Fog overnight. Low of 18F. Winds from the West at 5 to 15 mph.

  • Tuesday

    Partly cloudy. Fog early. High of 25F with a windchill as low as 7F. Winds from the WNW at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 14F with a windchill as low as 7F. Winds from the WNW at 5 to 10 mph.

  • Wednesday

    Clear. High of 18F with a windchill as low as 5F. Winds from the WNW at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 10F with a windchill as low as 3F. Winds from the West at 5 to 10 mph.

  • Thursday

    Partly cloudy. Fog early. High of 18F with a windchill as low as 5F. Winds from the West at 5 to 10 mph.

  • Thursday Night

    Clear. Fog overnight. Low of 10F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: North Fountain Square, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 41.7 °F Dew Point: 36 °F Humidity: 80% Wind: ESE at 2.5 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Fountain Square, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 41.9 °F Dew Point: - Humidity: 92% Wind: North at - Pressure: - Hourly Precipitation: - Windchill: 42 °F Graphs

Location: Herron Morton Place, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 42.3 °F Dew Point: 38 °F Humidity: 86% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Indpls-E.16th St, Indianapolis, IN

Updated: 1:20 PM EST

Temperature: 39.4 °F Dew Point: - Humidity: 79% Wind: North at - Pressure: - Hourly Precipitation: - Windchill: 39 °F Graphs

Location: Werner Ent. Indianapolis, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 41.7 °F Dew Point: 36 °F Humidity: 80% Wind: SE at 4.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Indpls-Harding St, Indianapolis, IN

Updated: 1:20 PM EST

Temperature: 40.5 °F Dew Point: - Humidity: 84% Wind: North at - Pressure: 29.13 in Hourly Precipitation: - Windchill: 40 °F Graphs

Location: Broadripple, Indianapolis, IN

Updated: 1:12 PM EST

Temperature: 41.7 °F Dew Point: 36 °F Humidity: 81% Wind: Calm Pressure: 29.57 in Hourly Precipitation: - Windchill: 42 °F Graphs

Location: Quail Creek, Indy S.E., Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 42.9 °F Dew Point: 40 °F Humidity: 89% Wind: SSE at 3.0 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Wildcat Park-SE Side, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 41.6 °F Dew Point: 36 °F Humidity: 82% Wind: ESE at 5.0 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Meridian Hills, Indianapolis, IN

Updated: 1:23 PM EST

Temperature: 40.3 °F Dew Point: 34 °F Humidity: 77% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Speedway, Speedway, IN

Updated: 1:26 PM EST

Temperature: 39.0 °F Dew Point: 33 °F Humidity: 78% Wind: SE at 1.7 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: 64th and Michigan Rd, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 41.1 °F Dew Point: 35 °F Humidity: 78% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: i-465 and MANN RD, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 41.2 °F Dew Point: 36 °F Humidity: 82% Wind: Calm Pressure: 29.78 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Cumberland, Indiana, Cumberland/Indianapolis, IN

Updated: 1:25 PM EST

Temperature: 39.8 °F Dew Point: 35 °F Humidity: 83% Wind: SE at 2.0 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Williams Creek, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 40.8 °F Dew Point: 36 °F Humidity: 84% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: GasRaceway Rahke Rd, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 42.1 °F Dew Point: 37 °F Humidity: 82% Wind: SSE at 4.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Washington Township, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 38.5 °F Dew Point: 37 °F Humidity: 94% Wind: North at - Pressure: 29.92 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: Thompson Medows, Indianapolis, IN

Updated: 1:22 PM EST

Temperature: 41.5 °F Dew Point: 38 °F Humidity: 86% Wind: Calm Pressure: 29.73 in Hourly Precipitation: - Windchill: 42 °F Graphs

Location: Southern Dunes, Indianapolis, IN

Updated: 1:25 PM EST

Temperature: 43.5 °F Dew Point: 36 °F Humidity: 75% Wind: SSE at 1.0 mph Pressure: 22.82 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Radio Station N1HQH, Indianapolis, IN

Updated: 1:24 PM EST

Temperature: 39.8 °F Dew Point: 36 °F Humidity: 85% Wind: NNW at 6.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Sugar Creek Elementary, New Palestine, IN

Updated: 1:18 PM EST

Temperature: 40.3 °F Dew Point: 33 °F Humidity: 76% Wind: East at 3.6 mph Pressure: 29.04 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Indy West, Indianapolis, IN

Updated: 1:26 PM EST

Temperature: 42.3 °F Dew Point: -2 °F Humidity: 16% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Shelborne Greene, Carmel, IN

Updated: 1:26 PM EST

Temperature: 41.4 °F Dew Point: 35 °F Humidity: 77% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Wynbrooke, Indianapolis, IN

Updated: 1:23 PM EST

Temperature: 40.6 °F Dew Point: 37 °F Humidity: 87% Wind: South at 2.2 mph Pressure: 29.75 in Hourly Precipitation: - Windchill: 41 °F Graphs

Location: Windsong/Feather Cove II, Indianapolis, IN

Updated: 1:00 PM EST

Temperature: 38.8 °F Dew Point: 35 °F Humidity: 86% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Roofing Made Easy, Greenwood, IN

Updated: 1:00 PM EST

Temperature: 39.6 °F Dew Point: 36 °F Humidity: 87% Wind: East at 5.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: White River Twp, Greenwood, IN

Updated: 1:24 PM EST

Temperature: 42.4 °F Dew Point: 36 °F Humidity: 78% Wind: ESE at 1.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Ashbrooke one, Carmel, IN

Updated: 1:26 PM EST

Temperature: 41.4 °F Dew Point: 33 °F Humidity: 72% Wind: Calm Pressure: 28.85 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Indianapolis in 
1241 PM EST Monday Dec 22 2014 


Update... 
the aviation section has been updated below. 


&& 


Synopsis... 
issued at 327 am EST Monday Dec 22 2014 


An upper trough and a couple of areas of low pressure will bring 
rain to central Indiana today into Wednesday...with perhaps some 
snow Wednesday night. Another system will bring additional chances 
for precipitation Friday and Saturday. Near to above average 
temperatures this week will return to cooler than average for the 
weekend. 


&& 


Near term.../rest of today/ 
issued at 948 am EST Monday Dec 22 2014 


Update...raised rain chances a little over central and western 
sections as radar loops has shown a pretty good progression of light 
rain into our western sections and models show this trend continuing 
this afternoon. Otherwise...only minor tweaks made to grids as 
previous forecast seems to be on track. 


Previous near term discussion follows... 
isentropic lift will increase today as an upper trough and surface 
warm front move toward central Indiana. Best forcing arrives late in 
the day when 850mb winds approach 50kt and an upper jet moves closer 
to the area. 


Any precipitation will have to fight the dry lower levels of the 
atmosphere initially. Southeast winds at the surface will aid in 
keeping the lower levels dry. Thus it will take the atmosphere a 
while to moisten up. 


Given the above...went highest probability of precipitation today at the end of the today 
period. Gradually increased probability of precipitation during the day. By late day went 
likely probability of precipitation far west...chance central...and slight chance far east. 


Clouds will increase/thicken through the day. A blend of models 
looks best for high temperatures...and this ends up near to a little 
cooler than MOS suggests. 


&& 


Short term.../tonight through Wednesday night/ 
issued at 327 am EST Monday Dec 22 2014 


Focus is on precipitation chances through the period. Threw out the 
NAM as its solution of bringing a surface low near the Appalachians 
looks unrealistic. GFS/ECMWF/Canadian models are similar and look 
more reasonable...so used a blend of their solutions. 


Rain will continue to overspread central Indiana tonight with first 
a warm front then a cold front moving through the area. 850mb jet 
will provide good moisture and forcing...and upper trough/upper jet 
will bring additional forcing. Thus went categorical probability of precipitation all areas 
tonight. Lowered probability of precipitation overnight as some drier air works in behind 
the cold front. 


Models now showing a dry slot across central Indiana for much of 
Tuesday. This seems reasonable with first surface and upper systems 
moving off the north...and next upper low and surface low still 
organizing to the south/southwest. However do not believe the very 
dry GFS given that any weak upper impulses could generate some 
showers. 


Thus went mainly chance probability of precipitation through the day Tuesday across the 
area. Kept higher probability of precipitation east during the morning to account for rain 
along the exiting surface front. 


Tuesday night probability of precipitation will increase once again as the next system 
approaches from the south. By 06z went likely probability of precipitation most areas. 


On Wednesday a surface low will move through the area. Models still 
uncertain on exact path...but it should be in the general area of 
central Indiana to western Ohio. Went high end likely probability of precipitation...and may 
need to up them to categorical as we get closer. 


With the more western tracks of the models gaining favor /GFS 
ensemble mean and parallel GFS are farther west than operational GFS 
and European model (ecmwf)/ feel than rain will be the primary precipitation type 
through the day Wednesday. Went with chance of snow mixing in across 
roughly the west half of central Indiana in the late afternoon as 
colder air starts to work in. 


Most of the forcing will be off to the east Wednesday night so went 
chance probability of precipitation. Will have to watch closely though in case deformation 
zone or even a trowal bring better chances. Went snow as the 
precipitation type with colder air quickly moving in. At the moment 
will keep any snowfall amounts less than an inch. 


For temperatures through the period generally stuck with a blend of 
GFS/ECMWF/MOS. 


&& 


Long term /Thursday through Sunday/... 
issued at 253 am EST Monday Dec 22 2014 


Strong system set to impact the region Christmas evening will lift into 
Quebec by early Christmas morning...will any leftover light snow 
showers departing around or shortly before daybreak. Surface ridging 
will immediately expand into the Ohio Valley on Thursday with clouds 
gradually diminishing as winds turn southerly. Focus shifts abruptly 
to next surface wave ejecting out of the Central Plains as yet 
another sharp upper trough dives into the northern rockies. Overall 
model consensus is not too bad at this point with respect to the 
surface low track into the western Great Lakes by Friday night. 
Southerly flow and warm advection ahead of this feature will bring 
milder air north with any precipitation falling as rain into Friday 
evening. Colder air will spill in late as a cold front passes 
through the region...with precipitation possibly mixing with or changing to 
light snow into Saturday before ending. 


Remainder of the extended quite a bit more convoluted as models 
exhibiting differences in handling of subsequent waves aloft 
traversing the lower 48. The European model (ecmwf) and ggem starting to favor 
secondary surface wave development on the trailing part of the 
aforementioned cold front...bringing the feature northeast out of 
the western Gulf of Mexico up into the Ohio and Tennessee valleys by 
early Sunday in tandem with the wave aloft. Not surprisingly...op 
GFS/parallel GFS and pretty much all of the GFS ensemble members 
paint a completely different picture...with any secondary wave 
development on the front being suppressed along the Gulf Coast with 
no upper support present. 


Will maintain a dry chilly forecast for the second half of the 
weekend to maintain continuity from previous forecasts...but it will 
be interesting to see if the global models maintain this new idea of 
bringing a secondary wave north with potentially additional 
opportunities for wintry precipitation Saturday night and Sunday. Not 
anticipating any better model consensus for at least a few more 
days...especially considering the chaotic model performance 
recently. Definitely something to monitor going forward. 


&& 


Aviation /discussion for 221800z taf issuance/... 


Issued at 1231 PM EST Monday Dec 22 2014 


Quickly deteriorating flying conditions with rain impacting the 
terminals this afternoon into tonight. Widespread MVFR will become 
IFR now or shortly...then improve back to MVFR by Tuesday morning. 
Possibly even VFR by later Tuesday afternoon or evening. 


Low pressure and its associated warm front are approaching the 
region into the evening. Expect widespread rain and IFR 
conditions to develop (if not already such as at site klaf) over 
central Indiana. Southeast winds will steadily increase to 
10-15kts by this evening...eventually veering to a more southerly 
direction and becoming gusty up to 18 to 20 knots by daybreak 
Tuesday as the warm front passes through the forecast area. Rain 
will decrease in coverage after 06z as the surface low lifts into 
northern Illinois...but low stratus will persist as model 
soundings and 925/950mb relative humidity forecasts maintain deep low level moisture 
beneath an inversion. After the rain ends...the inversion is 
forecast per model xsections to lift by Tuesday afternoon...and 
VFR conditions are then forecast for a brief period...before the 
next system is set to impact the region later in the next aviation 
forecast period. 


&& 


Ind watches/warnings/advisories... 
none. 
&& 


$$ 


Synopsis...50 
near term...50/jh 
short term...50 
long term....Ryan 
aviation...smf 


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