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 89%
Wind Speed Calm
Barometer 30.23 in (1024.2 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 8 Jan 6:53 pm EST
Extended Forecast for

Millersburg PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Calm wind becoming southeast around 5 mph after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Friday

    Friday: Rain likely, mainly after 1pm. Increasing clouds, with a high near 51. South wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Slight Chance
    Rain then
    Rain Likely

  • Friday Night

    Friday Night: A slight chance of rain before 10pm, then a slight chance of showers between 10pm and 1am. Cloudy, with a low around 40. Light and variable wind. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Rain. High near 46. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain

  • Saturday Night

    Saturday Night: A chance of showers before 1am. Cloudy, with a low around 37. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 36. Calm wind becoming southeast around 5 mph after midnight.
Friday
Rain likely, mainly after 1pm. Increasing clouds, with a high near 51. South wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A slight chance of rain before 10pm, then a slight chance of showers between 10pm and 1am. Cloudy, with a low around 40. Light and variable wind. Chance of precipitation is 20%.
Saturday
Rain. High near 46. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers before 1am. Cloudy, with a low around 37. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 44.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 35.
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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:
7:06 pm EST Jan 8, 2026
Forecast Valid:
7pm EST Jan 8, 2026-6pm EST Jan 15, 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