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

34°F

1°C

Humidity 100%
Wind Speed Calm
Barometer 30.52 in (1033.7 mb)
Dewpoint 34°F (1°C)
Visibility 9.00 mi
Last update 19 Oct 2:53 am EDT
Extended Forecast for

Millersburg PA

  • Overnight

    Overnight: Patchy fog. Widespread frost, mainly after 4am. Otherwise, clear, with a low around 29. Calm wind.

    Low: 29 °F

    Frost and
    Patchy Fog

  • Monday

    Monday: Patchy fog before 9am. Widespread frost before 9am. Otherwise, sunny, with a high near 67. Calm wind.

    High: 67 °F

    Frost and
    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 39. Light north wind.

    Low: 39 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67. North wind 5 to 7 mph.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37. North wind 3 to 6 mph.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 7am. Patchy frost before 9am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Patchy Frost
    and Patchy
    Fog then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Widespread frost, mainly after 4am. Otherwise, clear, with a low around 29. Calm wind.
Monday
Patchy fog before 9am. Widespread frost before 9am. Otherwise, sunny, with a high near 67. Calm wind.
Monday Night
Clear, with a low around 39. Light north wind.
Tuesday
Sunny, with a high near 67. North wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 37. North wind 3 to 6 mph.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Patchy fog before 7am. Patchy frost before 9am. Otherwise, sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 41.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Millersburg PA
 40.55°N 76.97°W (Elev. 400 ft)
Last Update:
2:46 am EDT Oct 19, 2026
Forecast Valid:
3am EDT Oct 19, 2026-6pm EDT Oct 25, 2026
 
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Additional Resources

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