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

Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Partly Cloudy

77°F

25°C

Humidity 56%
Wind Speed Vrbl 7 mph
Barometer 29.83 in (1009.7 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 23 Aug 2:53 pm EDT
Extended Forecast for

Montandon PA

  • This Afternoon

    This Afternoon: A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 77. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 55. Light southwest wind.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 72. West wind 3 to 8 mph.

    High: 72 °F

    Mostly Sunny

  • Monday Night

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

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 70%.

    High: 82 °F

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 77. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly clear, with a low around 55. Light southwest wind.
Monday
Mostly sunny, with a high near 72. West wind 3 to 8 mph.
Monday Night
Partly cloudy, with a low around 55. Light southwest wind.
Tuesday
Mostly sunny, with a high near 75. Calm wind becoming west 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montandon PA
 40.96°N 76.87°W (Elev. 499 ft)
Last Update:
2:21 pm EDT Aug 23, 2026
Forecast Valid:
2pm EDT Aug 23, 2026-6pm EDT Aug 29, 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