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.

Fog/Mist

50°F

10°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 29.77 in (1008.3 mb)
Dewpoint 50°F (10°C)
Visibility 1.25 mi
Wind Chill48°F (9°C)
Last update 8 Mar 4:53 am EDT
Extended Forecast for

Lewisburg PA

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 62. West wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 62 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 39. Southwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Light southwest wind.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 52. Chance of precipitation is 20%.

    Low: 52 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers, mainly after 8pm. Low around 45. Chance of precipitation is 80%.

    Low: 45 °F

    Showers

  • Thursday

    Thursday: Rain, possibly mixed with snow showers, mainly before 8am. High near 48. Chance of precipitation is 80%.

    High: 48 °F

    Rain/Snow
    then Chance
    Rain/Snow

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 62. West wind 5 to 10 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 39. Southwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 67. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 42. Light southwest wind.
Tuesday
Sunny, with a high near 73. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 52. Chance of precipitation is 20%.
Wednesday
Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
Wednesday Night
Showers, mainly after 8pm. Low around 45. Chance of precipitation is 80%.
Thursday
Rain, possibly mixed with snow showers, mainly before 8am. High near 48. Chance of precipitation is 80%.
Thursday Night
Mostly clear, with a low around 27.
Friday
A chance of rain and snow showers. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Friday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewisburg PA
 40.94°N 76.9°W (Elev. 499 ft)
Last Update:
4:56 am EDT Mar 8, 2026
Forecast Valid:
5am EDT Mar 8, 2026-6pm EDT Mar 14, 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