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

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fair

41°F

5°C

Humidity 43%
Wind Speed NW 15 G 28 mph
Barometer 29.91 in (1013.1 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 12 Mar 4:53 pm EDT
Extended Forecast for

Sunbury PA

  • Tonight

    Tonight: Mostly clear, with a low around 28. Northwest wind 8 to 13 mph becoming light west after midnight. Winds could gust as high as 29 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Increasing clouds, with a high near 49. Light south wind increasing to 11 to 16 mph in the morning. Winds could gust as high as 33 mph. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 8pm. Partly cloudy, with a low around 34. West wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 48. West wind around 10 mph, with gusts as high as 26 mph.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 53.

    High: 53 °F

    Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 47. Chance of precipitation is 90%.

    Low: 47 °F

    Chance Rain
    then Rain

  • Monday

    Monday: Rain. High near 64. Chance of precipitation is 100%.

    High: 64 °F

    Rain

  • Monday Night

    Monday Night: A chance of showers before 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.

    Low: 27 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 28. Northwest wind 8 to 13 mph becoming light west after midnight. Winds could gust as high as 29 mph.
Friday
A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Increasing clouds, with a high near 49. Light south wind increasing to 11 to 16 mph in the morning. Winds could gust as high as 33 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers, mainly before 8pm. Partly cloudy, with a low around 34. West wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 48. West wind around 10 mph, with gusts as high as 26 mph.
Saturday Night
Mostly cloudy, with a low around 33. Calm wind.
Sunday
Cloudy, with a high near 53.
Sunday Night
Rain, mainly after 2am. Low around 47. Chance of precipitation is 90%.
Monday
Rain. High near 64. Chance of precipitation is 100%.
Monday Night
A chance of showers before 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Tuesday
Partly sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Mostly cloudy, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sunbury PA
 40.87°N 76.79°W (Elev. 482 ft)
Last Update:
3:03 pm EDT Mar 12, 2026
Forecast Valid:
5pm EDT Mar 12, 2026-6pm EDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation