National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Rain

59°F

15°C

Humidity 93%
Wind Speed S 7 mph
Barometer 29.91 in (1012.7 mb)
Dewpoint 57°F (14°C)
Visibility 7.00 mi
Last update 16 Oct 5:53 am EDT
Extended Forecast for

Millersburg PA

  • Today

    Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 80. Southeast wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 42. West wind around 9 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 52. North wind 9 to 11 mph, with gusts as high as 28 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 2am. Otherwise, clear, with a low around 34. Light north wind.

    Low: 34 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 59. Calm wind.

    High: 59 °F

    Frost then
    Sunny

  • Sunday Night

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

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Patchy frost before 8am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 80. Southeast wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 42. West wind around 9 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 52. North wind 9 to 11 mph, with gusts as high as 28 mph.
Saturday Night
Areas of frost after 2am. Otherwise, clear, with a low around 34. Light north wind.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 59. Calm wind.
Sunday Night
Mostly clear, with a low around 36.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Millersburg PA
 40.53°N 76.97°W (Elev. 400 ft)
Last Update:
3:03 am EDT Oct 16, 2026
Forecast Valid:
6am EDT Oct 16, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation