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Keystone, Pennsylvania Weather Forecast
Keystone, Pennsylvania Weather
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Weather Forecast for Keystone, Pennsylvania : Somerset County
Issued: 7:36 am EST Dec 7, 2025 Latitude: 39.8064716 Longitude: -78.9855803 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Cloudy on Today 20% chance of snow on Tonight Partly Sunny on Monday Mostly Cloudy on Tuesday 60% chance of rain & snow on Wednesday 30% chance of snow on Thursday 40% chance of snow on Friday Mostly Cloudy on Saturday
High: 35°F Low: 15°F High: 22°F High: 33°F High: 40°F High: 32°F High: 27°F High: 18°F
Low: 10°F Low: 29°F Low: 27°F Low: 23°F Low: 12°F  
Cloudy Snow Partly Sunny Mostly Cloudy Rain & Snow Snow Snow Mostly Cloudy
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Current Conditions at
GREATER CUMBERLAND ARPT - (KCBE)
37°
Cloudy
as of 9:55 AM EST
Rel. Humidity: 64%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
3 MPH
150° Southeast
Cloud Level(s): Solid Overcast at 3500ft
Current Conditions at
JOHNSTOWN - (KJST)
28°
Cloudy
as of 9:54 AM EST
Rel. Humidity: 86%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: MVFR
Wind Data
6 MPH
230° Southwest
Cloud Level(s): Solid Overcast at 1800ft
Current Conditions at
MORGANTOWN - (KMGW)
36°
Cloudy
as of 9:53 AM EST
Rel. Humidity: 74%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 3200ft
Cloudy on Today Today... Cloudy, with a high near 35. Southwest wind around 7 mph.

20% chance of snow Tonight Tonight... A slight chance of snow before 8pm. Mostly cloudy, with a low around 15. Northwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Partly Sunny on Monday Monday... Partly sunny, with a high near 22. North wind 6 to 9 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 10. East wind around 6 mph becoming south after midnight.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 33. South wind 6 to 10 mph, with gusts as high as 20 mph.

20% chance of snow Tuesday Night Tuesday Night... A slight chance of snow after 1am, mixing with rain after 4am. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.

60% chance of rain & snow Wednesday Wednesday... A chance of rain between 7am and 1pm, then rain and snow likely. Cloudy, with a high near 40. Chance of precipitation is 60%.

40% chance of rain & snow Wednesday Night Wednesday Night... A chance of rain and snow before 1am. Mostly cloudy, with a low around 27. Breezy. Chance of precipitation is 40%.

30% chance of snow Thursday Thursday... A chance of snow after 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 30%.

50% chance of snow Thursday Night Thursday Night... A chance of snow. Cloudy, with a low around 23. Chance of precipitation is 50%.

40% chance of snow Friday Friday... A chance of snow. Mostly cloudy, with a high near 27. Chance of precipitation is 40%.

40% chance of snow Friday Night Friday Night... A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 40%.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 18. Breezy.

Current Radar Image


Sun Almanac for Keystone, Pennsylvania
Sunrise: 07:24 AM
Sunset: 4:51 PM
Civil Sunrise:06:54 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 06:20 AM
Nautical Sunset: 5:55 PM
Astro Sunrise: 05:47 AM
Astro Sunset: 6:28 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.