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Thornwood, Pennsylvania Weather Forecast
Thornwood, Pennsylvania Weather
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Weather Forecast for Thornwood, Pennsylvania : Westmoreland County
Issued: 8:49 pm EST Dec 15, 2025 Latitude: 40.1131282 Longitude: -79.5853169 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Mostly Cloudy on Tonight Mostly Sunny on Tuesday Mostly Cloudy on Wednesday 40% chance of rain on Thursday Mostly Cloudy on Friday Partly Sunny on Saturday 30% chance of rain on Sunday 30% chance of rain on Monday
Low: 10°F High: 36°F High: 42°F High: 52°F High: 34°F High: 46°F High: 42°F High: 43°F
Low: 26°F Low: 26°F Low: 25°F Low: 20°F Low: 33°F Low: 27°F  
Mostly Cloudy Mostly Sunny Mostly Cloudy Rain Mostly Cloudy Partly Sunny Rain Rain
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Current Conditions at
LATROBE - (KLBE)
16°
Cloudy
as of 9:53 PM EST
Rel. Humidity: 78%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
3 MPH
180° South
Cloud Level(s): Solid Overcast at 6500ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
18°
Cloudy
as of 9:53 PM EST
Rel. Humidity: 67%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
3 MPH
240° Southwest
Cloud Level(s): Solid Overcast at 6000ft
Current Conditions at
MORGANTOWN - (KMGW)
27°
Cloudy
as of 9:53 PM EST
Rel. Humidity: 42%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
7 MPH
220° Southwest
Cloud Level(s): Solid Overcast at 7000ft
Current Conditions at
JOHNSTOWN - (KJST)
18°
Feels like 6°F
Mostly Clear
as of 9:54 PM EST
Rel. Humidity: 44%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
9 MPH
220° Southwest
Cloud Level(s): Few at 5000ft
Mostly Cloudy on Tonight Tonight... Mostly cloudy, then gradually becoming clear, with a low around 10. Southwest wind around 6 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 36. Southwest wind 6 to 10 mph.
Increasing Clouds on Tuesday Night Tuesday Night... Increasing clouds, with a low around 26. Southwest wind 7 to 13 mph, with gusts as high as 24 mph.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 42. Southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 26. Light and variable wind becoming southeast around 6 mph after midnight.
40% chance of rain Thursday Thursday... A chance of rain after 1pm. Partly sunny, with a high near 52. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
100% chance of rain & snow Thursday Night Thursday Night... Rain before 1am, then rain and snow likely. Low around 25. Chance of precipitation is 100%.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 34. Breezy.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 20.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 46.
30% chance of rain Saturday Night Saturday Night... A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
30% chance of rain Sunday Sunday... A chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
40% chance of freezing rain Sunday Night Sunday Night... A chance of rain or freezing rain. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
30% chance of rain Monday Monday... A chance of rain. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Current Radar Image


Sun Almanac for Thornwood, Pennsylvania
Sunrise: 07:34 AM
Sunset: 4:54 PM
Civil Sunrise:07:03 AM
Civil Sunset: 5:24 PM
Nautical Sunrise: 06:29 AM
Nautical Sunset: 5:58 PM
Astro Sunrise: 05:56 AM
Astro Sunset: 6:31 PM
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