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

65°F

18°C

Humidity 87%
Wind Speed NE 7 mph
Barometer 30.08 in (1018.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 20 May 7:53 pm EDT
Extended Forecast for

Montandon PA

  • Tonight

    Tonight: A chance of showers after 4am. Cloudy, with a low around 52. North wind around 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 11am. Mostly cloudy, with a high near 66. Northeast wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming clear, with a low around 48. North wind 3 to 6 mph.

    Low: 48 °F

    Decreasing
    Clouds

  • Friday

    Friday: A chance of showers after 2pm. Mostly cloudy, with a high near 63. Northeast wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers, mainly after 8pm. Low around 48. Southeast wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Showers

  • Saturday

    Saturday: Showers. High near 56. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 56 °F

    Showers

  • Saturday Night

    Saturday Night: Showers. Low around 49. Chance of precipitation is 90%.

    Low: 49 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers. Cloudy, with a low around 56. Chance of precipitation is 50%.

    Low: 56 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers after 4am. Cloudy, with a low around 52. North wind around 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of showers before 11am. Mostly cloudy, with a high near 66. Northeast wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, then gradually becoming clear, with a low around 48. North wind 3 to 6 mph.
Friday
A chance of showers after 2pm. Mostly cloudy, with a high near 63. Northeast wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers, mainly after 8pm. Low around 48. Southeast wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Showers. High near 56. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Showers. Low around 49. Chance of precipitation is 90%.
Sunday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Cloudy, with a low around 56. Chance of precipitation is 50%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 81. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 58.
Wednesday
Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montandon PA
 40.94°N 76.84°W (Elev. 1033 ft)
Last Update:
8:06 pm EDT May 20, 2026
Forecast Valid:
8pm EDT May 20, 2026-6pm EDT May 27, 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