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.

A Few Clouds

38°F

3°C

Humidity 51%
Wind Speed Calm
Barometer 30.30 in (1026.2 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 14 Mar 9:53 pm EDT
Extended Forecast for

4 Miles E Millerstown PA

  • Tonight

    Tonight: A slight chance of snow between 1am and 2am. Mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 20%.

    Low: 33 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 52. South wind 6 to 15 mph, with gusts as high as 29 mph.

    High: 52 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Low around 46. Southeast wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 11am. High near 64. South wind 13 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 64 °F

    Showers

  • Monday Night

    Monday Night: Rain showers likely before 11pm, then snow showers likely. Some thunder is also possible. Mostly cloudy, with a low around 24. West wind around 11 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 24 °F

    Rain/Snow
    Likely then
    Snow Showers
    Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of snow between 1am and 2am. Mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 20%.
Sunday
Mostly cloudy, with a high near 52. South wind 6 to 15 mph, with gusts as high as 29 mph.
Sunday Night
Showers, mainly after 2am. Low around 46. Southeast wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 11am. High near 64. South wind 13 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain showers likely before 11pm, then snow showers likely. Some thunder is also possible. Mostly cloudy, with a low around 24. West wind around 11 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Tuesday
Partly sunny, with a high near 30.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Mostly cloudy, with a high near 47.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 53.
Friday Night
A chance of showers. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 52. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Millerstown PA
 40.56°N 77.08°W (Elev. 699 ft)
Last Update:
10:11 pm EDT Mar 14, 2026
Forecast Valid:
10pm EDT Mar 14, 2026-6pm EDT Mar 21, 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