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.

Overcast

33°F

1°C

Humidity 54%
Wind Speed Vrbl 7 G 21 mph
Barometer 29.93 in (1013.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 28 Nov 3:53 am EST
Extended Forecast for

Sunbury PA

  • Overnight

    Overnight: A slight chance of snow showers. Mostly cloudy, with a low around 29. West wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: Mostly sunny, with a high near 40. West wind 10 to 15 mph, with gusts as high as 34 mph.

    High: 40 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. West wind 6 to 8 mph, with gusts as high as 21 mph.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 41. West wind around 5 mph becoming calm in the afternoon.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of snow showers after 1am. Cloudy, with a low around 29. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 40%.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Sunday

    Sunday: Rain and snow showers likely, becoming all rain after 10am. Cloudy, with a high near 43. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow
    Likely then
    Showers
    Likely

  • Sunday Night

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

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of snow showers. Mostly cloudy, with a low around 29. West wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 40. West wind 10 to 15 mph, with gusts as high as 34 mph.
Friday Night
Mostly clear, with a low around 26. West wind 6 to 8 mph, with gusts as high as 21 mph.
Saturday
Mostly sunny, with a high near 41. West wind around 5 mph becoming calm in the afternoon.
Saturday Night
A chance of snow showers after 1am. Cloudy, with a low around 29. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 40%.
Sunday
Rain and snow showers likely, becoming all rain after 10am. Cloudy, with a high near 43. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 38.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
A chance of snow before 1pm, then a chance of rain and snow. Cloudy, with a high near 37. Chance of precipitation is 50%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly cloudy, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sunbury PA
 40.87°N 76.79°W (Elev. 482 ft)
Last Update:
1:28 am EST Nov 28, 2025
Forecast Valid:
4am EST Nov 28, 2025-6pm EST Dec 4, 2025
 
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Additional Resources

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Chance of Precipitation