National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall and Flooding Concerns in the Southeast; Unsettled Weather in the West

Heavy to excessive rainfall will persist across much of the Southeast U.S. over the next several days, with isolated flash flooding possible. The heaviest rainfall is forecast over the east coast of Florida. Showers and thunderstorms will continue in the Pacific Northwest and Intermountain West through the weekend. Snow could mix with rain in the highest elevations. Read More >

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fair

48°F

9°C

Humidity 93%
Wind Speed Calm
Barometer 30.41 in (1029.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 3 Oct 1:53 am EDT
Extended Forecast for

Lewisburg PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 76. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 76 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Areas of fog after 2am. Otherwise, mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear
    then Areas
    Fog

  • Saturday

    Saturday: Areas of dense fog before 10am. Otherwise, mostly sunny, with a high near 82. Calm wind.

    High: 82 °F

    Areas Dense
    Fog then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 46. Calm wind.
Friday
Partly sunny, then gradually becoming sunny, with a high near 76. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
Areas of fog after 2am. Otherwise, mostly clear, with a low around 47. Calm wind.
Saturday
Areas of dense fog before 10am. Otherwise, mostly sunny, with a high near 82. Calm wind.
Saturday Night
Mostly clear, with a low around 48. Calm wind.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 49.
Monday
Sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Wednesday
Showers likely. Partly sunny, with a high near 70. Chance of precipitation is 60%.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewisburg PA
 40.96°N 76.89°W (Elev. 499 ft)
Last Update:
2:27 am EDT Oct 3, 2025
Forecast Valid:
2am EDT Oct 3, 2025-6pm EDT Oct 9, 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