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

43°F

6°C

Humidity 97%
Wind Speed Calm
Barometer 30.44 in (1030.9 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 2 Nov 7:53 am EST
Extended Forecast for

Mifflinburg PA

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 66. Light and variable wind.

    High: 66 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 67. Light and variable wind.

    High: 67 °F

    Areas Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Widespread fog, mainly after 3am. Otherwise, increasing clouds, with a low around 45. Calm wind.

    Low: 45 °F

    Fog

  • Wednesday

    Wednesday: Widespread fog, mainly before 8am. Otherwise, partly sunny, with a high near 70. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 70 °F

    Fog then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers. High near 69. Chance of precipitation is 90%.

    High: 69 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.

    Low: 51 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 66. Light and variable wind.
Tonight
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 41. Calm wind.
Tuesday
Areas of fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 67. Light and variable wind.
Tuesday Night
Widespread fog, mainly after 3am. Otherwise, increasing clouds, with a low around 45. Calm wind.
Wednesday
Widespread fog, mainly before 8am. Otherwise, partly sunny, with a high near 70. Calm wind becoming south 5 to 8 mph in the afternoon.
Wednesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers. High near 69. Chance of precipitation is 90%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Friday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 60.
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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:
7:16 am EST Nov 2, 2026
Forecast Valid:
8am EST Nov 2, 2026-6pm EST Nov 8, 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