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Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Overcast

32°F

0°C

Humidity 85%
Wind Speed NW 10 mph
Barometer 29.73 in (1007.2 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 23 Feb 4:53 am EST
Extended Forecast for

Northumberland PA

Winter Weather Advisory February 23, 05:46am until February 23, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory February 23, 05:46am until February 23, 01:00pm

    NOW until 1:00pm Mon

    Winter Weather Advisory

  • Overnight

    Low: 30 °F

    Chance Snow

  • Monday

    Monday: A slight chance of snow before 1pm. Cloudy, with a high near 37. North wind 10 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Snow

  • Monday Night

    Monday Night: Cloudy, then gradually becoming partly cloudy, with a low around 18. Northwest wind around 8 mph, with gusts as high as 23 mph.

    Low: 18 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32. Northwest wind 5 to 7 mph, with gusts as high as 20 mph.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow, mainly after 1am. Low around 22. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 22 °F

    Slight Chance
    Snow then
    Snow

  • Wednesday

    Wednesday: A chance of snow before 10am, then a chance of rain between 10am and 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Snow likely after 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.

    High: 39 °F

    Partly Sunny
    then Snow
    Likely

Detailed Forecast

Overnight
A chance of snow. Cloudy, with a low around 30. North wind around 9 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Monday
A slight chance of snow before 1pm. Cloudy, with a high near 37. North wind 10 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Monday Night
Cloudy, then gradually becoming partly cloudy, with a low around 18. Northwest wind around 8 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 32. Northwest wind 5 to 7 mph, with gusts as high as 20 mph.
Tuesday Night
Snow, mainly after 1am. Low around 22. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
A chance of snow before 10am, then a chance of rain between 10am and 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 23.
Thursday
Snow likely after 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow showers before 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 50%.
Friday
Mostly sunny, with a high near 40.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Northumberland PA
 40.89°N 76.79°W (Elev. 482 ft)
Last Update:
4:34 am EST Feb 23, 2026
Forecast Valid:
5am EST Feb 23, 2026-6pm EST Mar 1, 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