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

48°F

9°C

Humidity 61%
Wind Speed Vrbl 3 mph
Barometer 30.22 in (1023.5 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 8 Jan 11:53 am EST
Extended Forecast for

Millersburg PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 48. Calm wind.

    High: 48 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Calm wind becoming east 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 22 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 47. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain

  • Saturday Night

    Saturday Night: A chance of showers before 1am. Cloudy, with a low around 38. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 48. Calm wind.
Tonight
Mostly cloudy, with a low around 36. Calm wind becoming east 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 22 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 47. 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 38. 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
Partly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Millersburg PA
 40.55°N 76.97°W (Elev. 400 ft)
Last Update:
12:21 pm EST Jan 8, 2026
Forecast Valid:
12pm EST Jan 8, 2026-6pm EST Jan 14, 2026
 
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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