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.

Partly Cloudy

76°F

24°C

Humidity 67%
Wind Speed S 5 mph
Barometer 29.85 in (1010.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 13 Oct 6:53 pm EDT
Extended Forecast for

Millerstown PA

  • Tonight

    Tonight: Mostly clear, with a low around 64. South wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers. Partly sunny, with a high near 80. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52. Light north wind.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. Light and variable wind.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers. Low around 56. Calm wind becoming south 5 to 7 mph after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 56 °F

    Showers

  • Friday

    Friday: Showers, mainly before 2pm. High near 74. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Partly cloudy, with a low around 39. Chance of precipitation is 30%.

    Low: 39 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear
    then Frost

Detailed Forecast

Tonight
Mostly clear, with a low around 64. South wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers. Partly sunny, with a high near 80. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 52. Light north wind.
Thursday
Mostly sunny, with a high near 67. Light and variable wind.
Thursday Night
Showers. Low around 56. Calm wind becoming south 5 to 7 mph after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, mainly before 2pm. High near 74. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers before 8pm. Partly cloudy, with a low around 39. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 51.
Saturday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 60.
Sunday Night
Patchy frost. Otherwise, mostly clear, with a low around 36.
Monday
Patchy frost. Otherwise, mostly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Millerstown PA
 40.55°N 77.14°W (Elev. 489 ft)
Last Update:
6:36 pm EDT Oct 13, 2026
Forecast Valid:
7pm EDT Oct 13, 2026-6pm EDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation