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Jefferson, Pennsylvania Weather Forecast
Jefferson, Pennsylvania Weather
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Weather Forecast for Jefferson, Pennsylvania : Greene County
Issued: 11:56 am EST Dec 7, 2025 Latitude: 39.9300749 Longitude: -80.0589461 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Cloudy on This Afternoon Mostly Cloudy on Tonight Partly Sunny on Monday Mostly Cloudy on Tuesday 90% chance of rain on Wednesday 40% chance of snow on Thursday 40% chance of snow on Friday 40% chance of snow on Saturday
High: 40°F Low: 19°F High: 28°F High: 38°F High: 44°F High: 34°F High: 31°F High: 23°F
Low: 14°F Low: 32°F Low: 27°F Low: 21°F Low: 12°F  
Mostly Cloudy Mostly Cloudy Partly Sunny Mostly Cloudy Rain Snow Snow Snow
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Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
34°
Cloudy
as of 12:33 PM EST
Rel. Humidity: 69%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: MVFR
Wind Data
7 MPH
230° Southwest
Cloud Level(s): Solid Overcast at 1900ft
Mostly Cloudy on This Afternoon This Afternoon... Mostly cloudy, with a high near 40. Southwest wind around 6 mph.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 19. Calm wind becoming north 5 to 7 mph after midnight.
Partly Sunny on Monday Monday... Partly sunny, with a high near 28. Northeast wind 6 to 8 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 14. Light and variable wind.
Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 38. South wind 6 to 13 mph, with gusts as high as 23 mph.
40% chance of rain Tuesday Night Tuesday Night... A chance of rain after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
90% chance of rain Wednesday Wednesday... Rain. High near 44. Chance of precipitation is 90%.
80% chance of rain & snow Wednesday Night Wednesday Night... Rain and snow before 1am, then a chance of snow. Low around 27. Chance of precipitation is 80%.
40% chance of snow Thursday Thursday... A chance of snow after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.
60% chance of snow Thursday Night Thursday Night... Snow likely, mainly before 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
40% chance of snow Friday Friday... A chance of snow. Mostly cloudy, with a high near 31. Chance of precipitation is 40%.
60% chance of snow Friday Night Friday Night... Snow likely. Mostly cloudy, with a low around 12. Chance of precipitation is 60%.
40% chance of snow Saturday Saturday... A chance of snow. Mostly cloudy, with a high near 23. Chance of precipitation is 40%.
Sun Almanac for Jefferson, Pennsylvania
Sunrise: 07:29 AM
Sunset: 4:55 PM
Civil Sunrise:06:59 AM
Civil Sunset: 5:25 PM
Nautical Sunrise: 06:25 AM
Nautical Sunset: 5:59 PM
Astro Sunrise: 05:52 AM
Astro Sunset: 6:32 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.