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Jefferson, Pennsylvania Weather Forecast
Jefferson, Pennsylvania Weather
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Weather Forecast for Jefferson, Pennsylvania : Washington County
Issued: 11:56 am EST Dec 7, 2025 Latitude: 40.2859036 Longitude: -80.4986795 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday
20% chance of rain & snow on This Afternoon Partly Cloudy on Tonight Mostly Sunny on Monday Mostly Cloudy on Tuesday 90% chance of rain on Wednesday 40% chance of snow on Thursday 50% chance of snow on Friday 50% chance of snow on Saturday
High: 37°F Low: 19°F High: 27°F High: 37°F High: 42°F High: 32°F High: 30°F High: 22°F
Low: 14°F Low: 32°F Low: 26°F Low: 21°F Low: 12°F  
Rain & Snow Partly Cloudy Mostly 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
20% chance of rain & snow This Afternoon This Afternoon... A slight chance of rain before 4pm, then a slight chance of snow after 5pm. Mostly cloudy, with a high near 37. West wind around 6 mph. Chance of precipitation is 20%.
Partly Cloudy on Tonight Tonight... Cloudy, then gradually becoming partly cloudy, with a low around 19. Light and variable wind becoming northeast 5 to 8 mph in the evening.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 27. Northeast wind 7 to 9 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 37. South wind 6 to 14 mph, with gusts as high as 26 mph.
50% chance of rain Tuesday Night Tuesday Night... A chance of rain after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
90% chance of rain Wednesday Wednesday... Rain. High near 42. Chance of precipitation is 90%.
70% chance of snow Wednesday Night Wednesday Night... Snow likely, mainly before 1am. Cloudy, with a low around 26. Chance of precipitation is 70%.
40% chance of snow Thursday Thursday... A chance of snow. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.
50% chance of snow Thursday Night Thursday Night... A chance of snow. Mostly cloudy, with a low around 21. Chance of precipitation is 50%.
50% chance of snow Friday Friday... A chance of snow. Mostly cloudy, with a high near 30. Chance of precipitation is 50%.
50% chance of snow Friday Night Friday Night... A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 50%.
50% chance of snow Saturday Saturday... A chance of snow. Mostly cloudy, with a high near 22. Chance of precipitation is 50%.
Current Radar Image


Sun Almanac for Jefferson, Pennsylvania
Sunrise: 07:32 AM
Sunset: 4:56 PM
Civil Sunrise:07:01 AM
Civil Sunset: 5:26 PM
Nautical Sunrise: 06:27 AM
Nautical Sunset: 6:00 PM
Astro Sunrise: 05:54 AM
Astro Sunset: 6:33 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.