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

40°F

4°C

Humidity 83%
Wind Speed Calm
Barometer 30.18 in (1022.3 mb)
Dewpoint 35°F (2°C)
Visibility 8.00 mi
Last update 20 Nov 2:53 pm EST
Extended Forecast for

2 Miles N Mechanicsville PA

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Cloudy then
    Patchy Fog

  • Friday

    Friday: Cloudy, with a high near 53. Calm wind becoming southwest around 5 mph.

    High: 53 °F

    Cloudy

  • Friday Night

    Friday Night: A chance of rain. Cloudy, with a low around 40. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 50. North wind 3 to 7 mph.

    High: 50 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. Light north wind.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, cloudy, with a low around 37. Calm wind.
Friday
Cloudy, with a high near 53. Calm wind becoming southwest around 5 mph.
Friday Night
A chance of rain. Cloudy, with a low around 40. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 50. North wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 27. Light north wind.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 32.
Monday
Mostly sunny, with a high near 53.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
A chance of showers. Cloudy, with a high near 52. Chance of precipitation is 50%.
Tuesday Night
Showers likely. Cloudy, with a low around 45. Chance of precipitation is 60%.
Wednesday
Mostly cloudy, with a high near 60.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Thanksgiving Day
Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Mechanicsville PA
 41°N 76.59°W (Elev. 600 ft)
Last Update:
1:33 pm EST Nov 20, 2025
Forecast Valid:
3pm EST Nov 20, 2025-6pm EST Nov 27, 2025
 
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