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.

Mostly Cloudy

72°F

22°C

Humidity 66%
Wind Speed E 3 mph
Barometer 30.01 in (1015.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 19 May 11:53 am EDT
Extended Forecast for

Northumberland PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. Calm wind.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 80. Calm wind.

    High: 80 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.

    High: 81 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. Calm wind.
Tonight
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 58. Calm wind.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 80. Calm wind.
Monday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 59. Calm wind.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 86.
Wednesday Night
A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 54.
Saturday
A chance of showers. Mostly sunny, with a high near 78. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Northumberland PA
 40.89°N 76.79°W (Elev. 482 ft)
Last Update:
11:34 am EDT May 19, 2024
Forecast Valid:
12pm EDT May 19, 2024-6pm EDT May 25, 2024
 
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