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.

Fair

33°F

1°C

Humidity 100%
Wind Speed NW 5 mph
Barometer 30.22 in (1023.8 mb)
Dewpoint 33°F (1°C)
Visibility 8.00 mi
Wind Chill28°F (-2°C)
Last update 10 Jan 2:53 am EST
Extended Forecast for

2 Miles ENE Northumberland PA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Patchy Fog

  • Saturday

    Saturday: Rain, mainly after 1pm. Patchy fog before 9am. High near 40. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Rain

  • Saturday Night

    Saturday Night: Showers likely, mainly before midnight. Patchy fog between 10pm and 4am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 32. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 32 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Mostly sunny, with a high near 38. West wind 7 to 16 mph, with gusts as high as 32 mph.

    High: 38 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. West wind 11 to 15 mph, with gusts as high as 32 mph.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Saturday
Rain, mainly after 1pm. Patchy fog before 9am. High near 40. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Showers likely, mainly before midnight. Patchy fog between 10pm and 4am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 32. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Mostly sunny, with a high near 38. West wind 7 to 16 mph, with gusts as high as 32 mph.
Sunday Night
Partly cloudy, with a low around 28. West wind 11 to 15 mph, with gusts as high as 32 mph.
Monday
Mostly sunny, with a high near 39.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Mostly sunny, with a high near 32.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Northumberland PA
 40.91°N 76.76°W (Elev. 499 ft)
Last Update:
1:06 am EST Jan 10, 2026
Forecast Valid:
2am EST Jan 10, 2026-6pm EST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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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