National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Du Bois - Jefferson County Airport (KDUJ)

Lat: 41.18°NLon: 78.89°WElev: 1804ft.

Fog/Mist

46°F

8°C

Humidity 96%
Wind Speed SW 9 mph
Barometer 29.64 in (1004.4 mb)
Dewpoint 45°F (7°C)
Visibility 1.00 mi
Wind Chill41°F (5°C)
Last update 18 Feb 2:53 pm EST
Extended Forecast for

Summerville PA

  • This Afternoon

    This Afternoon: A chance of rain. Mostly cloudy, with a high near 51. Southwest wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain, mainly before 11pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 41. Light southwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance Rain
    then Patchy
    Fog

  • Thursday

    Thursday: A slight chance of rain before 3pm, then a chance of rain after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 54. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Patchy Fog
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain, mainly after 7pm. Low around 39. Southeast wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain Likely
    then Rain

  • Friday

    Friday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 56. Southeast wind around 11 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Rain Likely

  • Friday Night

    Friday Night: A slight chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 50%.

    High: 36 °F

    Chance Snow

Detailed Forecast

This Afternoon
A chance of rain. Mostly cloudy, with a high near 51. Southwest wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of rain, mainly before 11pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 41. Light southwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A slight chance of rain before 3pm, then a chance of rain after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 54. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain, mainly after 7pm. Low around 39. Southeast wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 56. Southeast wind around 11 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A slight chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
A chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 50%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Monday
A chance of snow. Mostly cloudy, with a high near 33. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summerville PA
 41.12°N 79.18°W (Elev. 1296 ft)
Last Update:
1:21 pm EST Feb 18, 2026
Forecast Valid:
3pm EST Feb 18, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation