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.

Overcast

42°F

6°C

Humidity 89%
Wind Speed Calm
Barometer 30.24 in (1024.5 mb)
Dewpoint 39°F (4°C)
Visibility 7.00 mi
Last update 4 Mar 3:53 pm EST
Extended Forecast for

Millersburg PA

  • This Afternoon

    This Afternoon: A chance of rain. Patchy fog. Otherwise, cloudy, with a high near 44. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Chance Rain
    and Patchy
    Fog

  • Tonight

    Tonight: A chance of rain before 10pm, then drizzle, mainly after 3am. Patchy fog. Otherwise, cloudy, with a low around 42. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Chance Rain
    and Patchy
    Fog then
    Drizzle and
    Patchy Fog

  • Thursday

    Thursday: Rain. Patchy fog before 1pm. High near 51. Light southeast wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 1am, then rain likely. Low around 42. Light southeast wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 42 °F

    Rain

  • Friday

    Friday: A slight chance of showers. Mostly cloudy, with a high near 51. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 51 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers before 1am. Cloudy, with a low around 42. Chance of precipitation is 20%.

    Low: 42 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Showers likely after 1pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Cloudy then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of rain. Patchy fog. Otherwise, cloudy, with a high near 44. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of rain before 10pm, then drizzle, mainly after 3am. Patchy fog. Otherwise, cloudy, with a low around 42. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain. Patchy fog before 1pm. High near 51. Light southeast wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain and possibly a thunderstorm before 1am, then rain likely. Low around 42. Light southeast wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A slight chance of showers. Mostly cloudy, with a high near 51. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A slight chance of showers before 1am. Cloudy, with a low around 42. Chance of precipitation is 20%.
Saturday
Showers likely after 1pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Saturday Night
Showers likely before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 73.
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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:
4:27 pm EST Mar 4, 2026
Forecast Valid:
4pm EST Mar 4, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation