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

87°F

31°C

Humidity 45%
Wind Speed NA
Barometer 29.85 in (1010.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 15 Apr 3:53 pm EDT
Extended Forecast for

Millersburg PA

  • Tonight

    Tonight: A slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 65. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 86. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly before 2am. Mostly cloudy, with a low around 63. West wind 3 to 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers. Mostly sunny, with a high near 76. Northwest wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.

    High: 60 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 65. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 86. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 63. West wind 3 to 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A slight chance of showers. Mostly sunny, with a high near 76. Northwest wind 5 to 7 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 55. Calm wind.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
Saturday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Partly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Millersburg PA
 40.55°N 76.94°W (Elev. 525 ft)
Last Update:
2:51 pm EDT Apr 15, 2026
Forecast Valid:
4pm EDT Apr 15, 2026-6pm EDT Apr 22, 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