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

62°F

17°C

Humidity 90%
Wind Speed S 3 mph
Barometer 30.15 in (1020.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 15 Jun 10:53 am EDT
Extended Forecast for

Lewisburg PA

  • Today

    Today: Scattered showers, mainly after 2pm. Cloudy, with a high near 68. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Scattered
    Showers

  • Tonight

    Tonight: A chance of showers, mainly after 2am. Patchy fog between 11pm and 2am. Otherwise, mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers, mainly before 8am. Cloudy, with a high near 72. Light southeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Cloudy, with a low around 62. Calm wind. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 9am, then a chance of showers after 2pm. Mostly cloudy, with a high near 76. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 50%.

    High: 88 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 8pm. Partly cloudy, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers then
    Partly Cloudy

  • Juneteenth

    Juneteenth: Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.

    High: 88 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
Scattered showers, mainly after 2pm. Cloudy, with a high near 68. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of showers, mainly after 2am. Patchy fog between 11pm and 2am. Otherwise, mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers, mainly before 8am. Cloudy, with a high near 72. Light southeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A slight chance of showers. Cloudy, with a low around 62. Calm wind. Chance of precipitation is 20%.
Tuesday
A slight chance of showers before 9am, then a chance of showers after 2pm. Mostly cloudy, with a high near 76. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Wednesday Night
A chance of showers before 8pm. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Juneteenth
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 86.
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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:
11:07 am EDT Jun 15, 2025
Forecast Valid:
11am EDT Jun 15, 2025-6pm EDT Jun 21, 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