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.

Fog/Mist

41°F

5°C

Humidity 96%
Wind Speed Calm
Barometer 30.25 in (1024.7 mb)
Dewpoint 40°F (4°C)
Visibility 3.00 mi
Last update 4 Mar 6:53 pm EST
Extended Forecast for

Millersburg PA

  • Tonight

    Tonight: A slight chance of rain or drizzle before 1am, then showers, mainly after 3am. Patchy fog. Low around 42. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Showers 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. Calm wind. Chance of precipitation is 20%.

    Low: 42 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm between 1pm and 4pm, then showers likely after 4pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    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

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain or drizzle before 1am, then showers, mainly after 3am. Patchy fog. Low around 42. Calm wind. Chance of precipitation is 80%. 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. Calm wind. Chance of precipitation is 20%.
Saturday
Showers likely and possibly a thunderstorm between 1pm and 4pm, then showers likely after 4pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
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. Chance of precipitation is 50%.
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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 Mar 4, 2026
Forecast Valid:
7pm 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