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

47°F

8°C

Humidity 90%
Wind Speed SW 7 mph
Barometer 30.05 in (1017.8 mb)
Dewpoint 44°F (7°C)
Visibility 6.00 mi
Wind Chill44°F (7°C)
Last update 9 Jan 7:53 pm EST
Extended Forecast for

Millersburg PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Southeast wind around 6 mph becoming light and variable after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain, mainly after 10am. Patchy fog between 4pm and 5pm. High near 43. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Chance Rain
    and Patchy
    Fog then Rain
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: Rain likely, mainly between 7pm and 1am. Patchy fog before 3am. Otherwise, mostly cloudy, with a low around 34. Calm wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Rain Likely
    and Patchy
    Fog

  • Sunday

    Sunday: A slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of rain showers after 4pm. Mostly sunny, with a high near 39. West wind 7 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    High: 39 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. West wind 8 to 11 mph, with gusts as high as 34 mph.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. Southeast wind around 6 mph becoming light and variable after midnight.
Saturday
Rain, mainly after 10am. Patchy fog between 4pm and 5pm. High near 43. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain likely, mainly between 7pm and 1am. Patchy fog before 3am. Otherwise, mostly cloudy, with a low around 34. Calm wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of rain showers after 4pm. Mostly sunny, with a high near 39. West wind 7 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 27. West wind 8 to 11 mph, with gusts as high as 34 mph.
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 34.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 34.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 32.
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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:
7:51 pm EST Jan 9, 2026
Forecast Valid:
8pm EST Jan 9, 2026-6pm EST Jan 16, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation