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

33°F

1°C

Humidity 96%
Wind Speed Calm
Barometer 30.09 in (1019.1 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 17 Oct 3:53 am EDT
Extended Forecast for

Shamokin Dam PA

  • Overnight

    Overnight: Areas of frost after 5am. Otherwise, clear, with a low around 35. Light northwest wind.

    Low: 35 °F

    Areas Frost

  • Friday

    Friday: Areas of frost before 9am. Otherwise, sunny, with a high near 62. North wind around 6 mph.

    High: 62 °F

    Areas Frost
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. Light south wind.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 2pm. Partly sunny, with a high near 72. Breezy. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 72 °F

    Slight Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Showers, mainly before 2am. Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

  • Monday

    Monday: A chance of showers before 2pm. Partly sunny, with a high near 61. Chance of precipitation is 40%.

    High: 61 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
Areas of frost after 5am. Otherwise, clear, with a low around 35. Light northwest wind.
Friday
Areas of frost before 9am. Otherwise, sunny, with a high near 62. North wind around 6 mph.
Friday Night
Partly cloudy, with a low around 41. Calm wind.
Saturday
Partly sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 47. Light south wind.
Sunday
Showers likely, mainly after 2pm. Partly sunny, with a high near 72. Breezy. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers, mainly before 2am. Low around 49. Chance of precipitation is 80%.
Monday
A chance of showers before 2pm. Partly sunny, with a high near 61. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 42.
Tuesday
A chance of showers after 2pm. Mostly sunny, with a high near 63. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 43. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Partly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Shamokin Dam PA
 40.87°N 76.85°W (Elev. 712 ft)
Last Update:
3:52 am EDT Oct 17, 2025
Forecast Valid:
3am EDT Oct 17, 2025-6pm EDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation