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

41°F

5°C

Humidity 93%
Wind Speed S 6 mph
Barometer 30.32 in (1027.1 mb)
Dewpoint 39°F (4°C)
Visibility 7.00 mi
Wind Chill37°F (3°C)
Last update 6 Mar 11:53 pm EST
Extended Forecast for

Lewisburg PA

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, cloudy, with a low around 41. Light south wind.

    Low: 41 °F

    Patchy Fog

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 56. South wind 3 to 8 mph. Chance of precipitation is 30%.

    High: 56 °F

    Patchy Fog
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 1am, then a chance of showers. Low around 54. South wind 3 to 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 61. West wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 61 °F

    Gradual
    Clearing

  • Sunday Night

    Sunday Night: Clear, with a low around 38. Light southwest wind.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, cloudy, with a low around 41. Light south wind.
Saturday
A chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 56. South wind 3 to 8 mph. Chance of precipitation is 30%.
Saturday Night
Showers and thunderstorms before 1am, then a chance of showers. Low around 54. South wind 3 to 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 61. West wind 6 to 9 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 38. Light southwest wind.
Monday
Sunny, with a high near 67.
Monday Night
Clear, with a low around 45.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Wednesday
Showers likely. Cloudy, with a high near 68. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Cloudy, with a low around 39. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewisburg PA
 40.96°N 76.89°W (Elev. 499 ft)
Last Update:
11:10 pm EST Mar 6, 2026
Forecast Valid:
12am EST Mar 7, 2026-6pm EDT Mar 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