London, Kentucky Weather Conditions

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Current Conditions

  • 60°
  • Overcast
  • Wind: Calm
  • Humidity: 83%
  • Visibility: 9.0 miles
  • Dew Point: 55°
  • Pressure: 30.03 in. +

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Next 12 Hours

11  am
2  pm
5  pm
8  pm
11  pm
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
66°
72°
73°
64°
61°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Partly Cloudy
  • High: 73 °
  • Low: 54 °
  • Partly Cloudy
  • Friday
  • Clear
  • High: 79 °
  • Low: 59 °
  • Clear
  • Saturday
  • Partly Cloudy
  • High: 81 °
  • Low: 61 °
  • Partly Cloudy
  • Sunday
  • Chance of a Thunderstorm
  • High: 79 °
  • Low: 61 °
  • Chance of a Thunderstorm
  • Monday
  • Partly Cloudy
  • High: 73 °
  • Low: 54 °
  • Partly Cloudy

Forecast for London, Kentucky

Updated: 5:00 AM EDT on September 18, 2014

  • Thursday

    Partly cloudy. Fog early. High of 73F. Winds from the NE at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 54F. Winds less than 5 mph.

  • Friday

    Clear in the morning, then partly cloudy. High of 79F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 59F. Winds less than 5 mph.

  • Saturday

    Partly cloudy in the morning, then overcast. High of 81F. Winds less than 5 mph.

  • Saturday Night

    Clear in the evening, then overcast. Low of 61F. Winds less than 5 mph.

  • Sunday

    Overcast in the morning, then mostly cloudy with a chance of a thunderstorm and rain. High of 79F. Winds from the WSW at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Partly cloudy with a chance of a thunderstorm and rain in the evening, then clear. Low of 61F. Winds from the NW at 5 to 10 mph. Chance of rain 50%.

  • Monday

    Partly cloudy. High of 73F. Winds from the North at 5 to 10 mph.

  • Monday Night

    Clear. Low of 54F. Winds less than 5 mph.

  • Tuesday

    Partly cloudy. High of 73F. Winds from the NE at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Low of 48F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy. High of 73F. Winds less than 5 mph.

  • Wednesday Night

    Partly cloudy. Low of 59F. Winds less than 5 mph.

  • Thursday

    Partly cloudy. High of 75F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy. Low of 52F. Winds less than 5 mph.

  • Friday

    Mostly cloudy. High of 75F. Winds less than 5 mph.

  • Friday Night

    Overcast. Fog overnight. Low of 52F. Winds less than 5 mph.

  • Saturday

    Mostly cloudy with a chance of rain. High of 77F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday Night

    Mostly cloudy. Fog overnight. Low of 54F. Winds less than 5 mph.

  • Sunday

    Partly cloudy with a chance of a thunderstorm. High of 77F. Winds less than 5 mph. Chance of rain 40%.

  • Sunday Night

    Clear with a chance of a thunderstorm. Fog overnight. Low of 54F. Winds less than 5 mph. Chance of rain 20%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: MSWO, London, KY

Updated: 9:38 AM EDT

Temperature: 61.5 °F Dew Point: 59 °F Humidity: 91% Wind: NE at 1.6 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Graphs

Location: Denny Subdivision, Mount Vernon, KY

Updated: 9:38 AM EDT

Temperature: 60.8 °F Dew Point: 57 °F Humidity: 86% Wind: ENE at 5.4 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Graphs

Location: Southern McKee, McKee, KY

Updated: 9:38 AM EDT

Temperature: 60.9 °F Dew Point: 59 °F Humidity: 94% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Graphs

Location: Mackey Bend, Barbourville, KY

Updated: 9:38 AM EDT

Temperature: 58.8 °F Dew Point: 58 °F Humidity: 99% Wind: East at 2.7 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Graphs

Location: liford's, Barbourville, KY

Updated: 9:32 AM EDT

Temperature: 59.5 °F Dew Point: 59 °F Humidity: 99% Wind: Calm Pressure: 29.89 in Hourly Precipitation: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated 
National Weather Service Jackson Kentucky 
755 am EDT Thursday Sep 18 2014 


Update... 
issued at 745 am EDT Thursday Sep 18 2014 


Radar trends indicate that the sprinkles and stray light showers have 
been gradually diminishing since a little before sunrise across the 
region. Some dense fog is still occurring on a couple of Ridgetop 
locations...mainly in the Big Sandy region. Otherwise...middle level 
clouds should continue to move across the region this morning...with 
cumulus development possible in the afternoon. Hourly grinds have been 
updated based on recent observations and trends. An updated zone forecast product is 
already out. 




&& 


Short term...(today through friday) 
issued at 400 am EDT Thursday Sep 18 2014 


A middle level disturbance continues to near the lower Ohio Valley region 
this morning. This disturbance has brought some middle level moisture 
and bands of middle level clouds to the commonwealth. These bands of 
clouds do have some thin spots and holes in them. The most widespread 
middle level clouds are near the Interstate 75 corridor. In fact...some 
weak returns are working across the SW part of the County Warning Area nearer to the 
Tennessee border. No measurable rain has been observed so far with this. In 
the very near term we have opted to just include sprinkles across the 
southern counties from McCreary east into Harlan County. The arrival 
of the middle level clouds has at least temporarily led to improved visible 
in the fog in most areas per recent observations other than ki35 and 
kpbx and some of the Big Sandy region where the fog has been locally 
dense. The middle clouds moving overhead should lead to improvements 
there as well other than in breaks or holes in the clouds through 
dawn. 


Behind the middle level disturbance to work across the region this 
morning...the middle level moisture near 700 mb should also decrease but 
the layer between 850 mb and 750 mb should still remain rather moist. 
Some shallow diurnally driven cumulus will be possible in this layer from 
middle day into the afternoon...as drier air is expected to move in... 
especially aloft...behind the disturbance. 500 mb heights are 
expected to rise as high pressure aloft builds into the lower Ohio 
Valley from the central and Southern Plains regions. A subsidence 
inversion between 800 mb and 700 mb should result and is expected to 
remain through the end of the short term period. 


At the surface...a large area of high pressure currently centered over 
Ontario will build into the Ohio Valley and northeastern states through 
early this evening. The high is expected to reach the New England 
coast by the end of the period. Fog should develop tonight...especially 
in valley locations under light winds and mostly clear to clear skies. 


An inverted surface trough is expected to develop north into eastern Kentucky 
late tonight and into the day on Friday. The inverted trough should 
weaken and gradually shift west by the end of the period. This 
inverted trough should draw enough moisture west across the 
Appalachians for some mostly rather shallow cumulus development below the 
subsidence inversion on Friday from midday into the evening. Some of 
this could become deep enough for a few sprinkles or even a stray 
shower or two near the Virginia border. For now...we have continued with a 
dry forecast as MOS guidance generally has 10 percent or lower probability of precipitation. 
However...several of the 0z models do have some light precipitation 
near the Virginia border on Friday afternoon. The model blends also have slight 
chance probability of precipitation in that area as well for Friday...so this scenario will 
need to continue to be monitored. 


Long term...(friday night through wednesday) 
issued at 328 am EDT Thursday Sep 18 2014 


A shortwave and inverted trough over the Appalachians should be 
transitioning eastward and out of the region by 0z Saturday. More 
zonal flow and high pressure at the surface will take hold for the 
day Saturday. Meanwhile...the longwave pattern is planned to deepen 
across south central Canada and the north central Continental U.S....eventually 
making its way eastward into the Ohio River valley Sunday and 
Monday. This will result in a cold front traversing Kentucky during the 
day Sunday. The front should eventually pass through the jkl 
forecast area...but models are still not locked in on similar 
timing. A model blend would suggest Sunday afternoon/evening...and 
will center the highest probability of precipitation at that time. As with the uncertain 
start times...the exit of this front is also still somewhat 
undetermined. Will lean more towards a blend of extended models at 
this time until better coherency takes place in later model runs. 


Southerly winds just ahead of this frontal passage...as well as 
incoming cloud cover...will keep temperatures a little above seasonal for 
Saturday through Sunday night. Kept with only mentioning slight 
chance thunder for during the day Sunday. Just not picking up on a 
lot of instability across the region...in addition to the fact that 
the frontal boundary should be weakening/shearing out as it reaches 
our area. 18z Sunday soundings seem to show the best instability 
potential /though still marginal/...but winds are nearly 
unidirectional from the west...so Don/T expect anything that 
develops to stay sustained for any long period of time. 


Behind this exiting trough will come strong upper level ridging and 
surface subsidence. This will keep much of the central Continental U.S. Dry 
through the remainder of the extended /Monday forward/. The depth of 
this ridge will also work to pull strong northerly/Canadian air in 
the low...mid...and upper levels across Kentucky. Temperatures will 
be coldest on Tuesday...when some of the best/strongest northerly 
air is tapped into. But overall...highs should only reach the upper 
60s and low 70s for the remainder of the extended. With strong 
radiational cooling expected overnight under mostly clear 
skies...early morning lows will stay in the upper 40s/low 50s. 


&& 


Aviation...(for the 12z tafs through 12z Friday morning) 
issued at 755 am EDT Thursday Sep 18 2014 


A weakening disturbance into the lower Ohio Valley region at this time. This 
feature has brought some middle level moisture and middle level clouds and 
even some sprinkles and stray light showers to the region. 
However...the stray light showers and sprinkles are diminishing and 
what is left of these will not impact the taf sites. Otherwise... 
the fog that developed before these bands of clouds moved across 
the region has lifted onto the ridges in southeastern Kentucky. The fog 
will initially be dense at sjs...but should gradually lift with VFR by 
1430z. Some VFR or MVFR fog is anticipated at the remaining taf sites 
initially with all locations improving into VFR around or shortly 
after 14z. Any cumulus that develops and remaining middle level clouds will 
remain in the VFR range through around 22z when they dissipate. Fog... 
reducing visible down into the MVFR range...or possibly IFR range will 
again be possible during the last 6 hours of the period. 


&& 


Jkl watches/warnings/advisories... 
none. 
&& 


$$ 


Update...jp 
short term...jp 
long term...jmw 
aviation...jp 



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