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 30.10 in (1019.4 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 6 Oct 10:53 pm EDT
Extended Forecast for

3 Miles NE Middleburg PA

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

    NOW until 9:00am Wed

    Frost Advisory

  • Tonight

    Low: 36 °F

    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 49. Light south wind.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. Light west wind.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Tonight
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 49. Light south wind.
Thursday
Sunny, with a high near 72. 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 44. Light west wind.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 67. 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 69. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Partly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Middleburg PA
 40.82°N 77.01°W (Elev. 797 ft)
Last Update:
10:01 pm EDT Oct 6, 2026
Forecast Valid:
11pm 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