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

28°F

-2°C

Humidity 49%
Wind Speed S 8 mph
Barometer 29.93 in (1014.3 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 16 Jan 4:53 pm EST
Extended Forecast for

Mifflinburg PA

  • Tonight

    Tonight: A chance of snow before 4am, then a slight chance of snow after 5am. Cloudy, with a low around 25. Light south wind. Chance of precipitation is 30%.

    Low: 25 °F

    Chance Snow

  • Saturday

    Saturday: A chance of snow, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 40. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Chance Snow
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 24. Calm wind.

    Low: 24 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 29. West wind 3 to 7 mph.

    High: 29 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 17. Light west wind.

    Low: 17 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 6.

    Low: 6 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 17.

    High: 17 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of snow before 4am, then a slight chance of snow after 5am. Cloudy, with a low around 25. Light south wind. Chance of precipitation is 30%.
Saturday
A chance of snow, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 40. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Saturday Night
Increasing clouds, with a low around 24. Calm wind.
Sunday
Mostly cloudy, with a high near 29. West wind 3 to 7 mph.
Sunday Night
Partly cloudy, with a low around 17. Light west wind.
M.L.King Day
Mostly sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 6.
Tuesday
Mostly sunny, with a high near 17.
Tuesday Night
Partly cloudy, with a low around 8.
Wednesday
Partly sunny, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly cloudy, with a high near 35.
Thursday Night
Mostly cloudy, with a low around 18.
Friday
A chance of snow showers. Partly sunny, with a high near 29. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mifflinburg PA
 40.91°N 77.05°W (Elev. 699 ft)
Last Update:
5:21 pm EST Jan 16, 2026
Forecast Valid:
5pm EST Jan 16, 2026-6pm EST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation