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Allison Heights, Pennsylvania Weather Forecast
Allison Heights, Pennsylvania Weather
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Weather Forecast for Allison Heights, Pennsylvania : Fayette County
Issued: 1:29 pm EST Jan 18, 2026 Latitude: 39.986186 Longitude: -79.8786581 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight M.L.King Day Tuesday Wednesday Thursday Friday Saturday
20% chance of snow on This Afternoon 30% chance of snow on Tonight 30% chance of snow on M.L.King Day Mostly Sunny on Tuesday 30% chance of rain & snow on Wednesday 40% chance of snow on Thursday Partly Sunny on Friday 40% chance of snow on Saturday
High: 25°F Low: 17°F High: 26°F High: 19°F High: 40°F High: 32°F High: 30°F High: 26°F
Low: 5 °F Low: 8°F Low: 25°F Low: 12°F Low: 15°F  
Snow Snow Snow Mostly Sunny Rain & Snow Snow Partly Sunny Snow
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Current Conditions at
MORGANTOWN - (KMGW)
25°
Partly Cloudy
as of 2:53 PM EST
Rel. Humidity: 49%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
8 MPH
Gust: 18 MPH
270° West
Cloud Level(s): Scattered at 4500ft
Current Conditions at
WASHINGTON - (KAFJ)
21°
Feels like 9°F
Cloudy
Light Snow
as of 2:56 PM EST
Rel. Humidity: 79%
Dew Point: 16°F
Visibility: 9 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
12 MPH
270° West
Cloud Level(s): Few at 1300ft, Solid Overcast at 4000ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
21°
Cloudy
as of 2:53 PM EST
Rel. Humidity: 62%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
7 MPH
Cloud Level(s): Solid Overcast at 4100ft
20% chance of snow This Afternoon This Afternoon... A slight chance of snow before 4pm. Mostly cloudy, with a high near 25. West wind around 7 mph. Chance of precipitation is 20%.

30% chance of snow Tonight Tonight... A chance of snow, mainly after 3am. Increasing clouds, with a low around 17. Southwest wind 3 to 8 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

30% chance of snow M.L.King Day M.L.King Day... A chance of snow before 7am, then a chance of snow showers between 7am and 3pm. Mostly cloudy, with a high near 26. Breezy, with a west wind 14 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 5. Wind chill values as low as -6. West wind 8 to 16 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 19. West wind 9 to 13 mph, with gusts as high as 25 mph.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 8.

30% chance of rain & snow Wednesday Wednesday... A chance of rain and snow showers after 1pm. Partly sunny, with a high near 40. Chance of precipitation is 30%.

60% chance of rain & snow Wednesday Night Wednesday Night... Rain and snow showers likely, mainly after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 60%.

40% chance of snow Thursday Thursday... A chance of snow showers before 1pm. Partly sunny, with a high near 32. Chance of precipitation is 40%.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 12.

Partly Sunny on Friday Friday... Partly sunny, with a high near 30.

30% chance of snow Friday Night Friday Night... A chance of snow showers. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.

40% chance of snow Saturday Saturday... A chance of snow showers. Mostly cloudy, with a high near 26. Chance of precipitation is 40%.

Sun Almanac for Allison Heights, Pennsylvania
Sunrise: 07:38 AM
Sunset: 5:22 PM
Civil Sunrise:07:08 AM
Civil Sunset: 5:52 PM
Nautical Sunrise: 06:35 AM
Nautical Sunset: 6:25 PM
Astro Sunrise: 06:03 AM
Astro Sunset: 6:57 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.