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

65°F

18°C

Humidity 81%
Wind Speed Calm
Barometer 29.90 in (1012.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Apr 2:53 am EDT
Extended Forecast for

Millersburg PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 86. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 86 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly before midnight. Mostly cloudy, with a low around 62. Southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers. Mostly sunny, with a high near 77. North wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly after 8pm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 56. Chance of precipitation is 50%.

    High: 56 °F

    Chance
    Showers

  • Sunday Night

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

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 65. Calm wind.
Thursday
Partly sunny, with a high near 86. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
A chance of showers, mainly before midnight. Mostly cloudy, with a low around 62. Southwest wind around 6 mph becoming light and variable after midnight. 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 77. North wind 3 to 6 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 55. Calm wind.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers likely, mainly after 8pm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 56. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Partly sunny, with a high near 68.
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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:
2:21 am EDT Apr 16, 2026
Forecast Valid:
3am EDT Apr 16, 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