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.

Fair

42°F

6°C

Humidity 100%
Wind Speed Calm
Barometer 30.11 in (1019.6 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 6 Oct 9:53 pm EDT
Extended Forecast for

Mifflinburg PA

Frost Advisory October 6, 11:00pm until October 7, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 70. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 70 °F

    Patchy Frost
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. Light southwest wind.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. Light west wind.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 36. Calm wind.
Wednesday
Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 70. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 50. Light southwest wind.
Thursday
Sunny, with a high near 73. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 46. Light west wind.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 40%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Columbus Day
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Partly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mifflinburg PA
 40.91°N 77.05°W (Elev. 699 ft)
Last Update:
10:01 pm EDT Oct 6, 2026
Forecast Valid:
10pm EDT Oct 6, 2026-6pm EDT Oct 13, 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