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

49°F

9°C

Humidity 74%
Wind Speed NW 3 mph
Barometer 29.89 in (1012.3 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 15 May 12:53 am EDT
Extended Forecast for

Montandon PA

  • Overnight

    Overnight: Cloudy, with a low around 44. Northwest wind around 5 mph.

    Low: 44 °F

    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 71. North wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 71 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 59. Light south wind. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Overnight
Cloudy, with a low around 44. Northwest wind around 5 mph.
Friday
Partly sunny, with a high near 71. North wind 6 to 9 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 47. Calm wind.
Saturday
Sunny, with a high near 80. Calm wind becoming south 5 to 9 mph in the afternoon.
Saturday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 59. Light south wind. Chance of precipitation is 30%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny and hot, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A chance of showers. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Montandon PA
 40.96°N 76.87°W (Elev. 499 ft)
Last Update:
8:05 pm EDT May 14, 2026
Forecast Valid:
12am EDT May 15, 2026-6pm EDT May 21, 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