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

55°F

13°C

Humidity 80%
Wind Speed N 7 mph
Barometer 30.22 in (1023.4 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 21 May 8:53 am EDT
Extended Forecast for

2 Miles ENE Northumberland PA

  • Today

    Today: Rain likely, mainly before 11am. Cloudy, with a high near 63. Northeast wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Rain Likely
    then Chance
    Rain

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 66. Calm wind becoming east around 6 mph in the afternoon.

    High: 66 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Rain, mainly after 2am. Low around 50. Light southeast wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Chance Rain
    then Rain

  • Saturday

    Saturday: Rain. High near 53. East wind 5 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 53 °F

    Rain

  • Saturday Night

    Saturday Night: Showers. Low around 48. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Cloudy, with a low around 56. Chance of precipitation is 50%.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Memorial Day

    Memorial Day: Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

Detailed Forecast

Today
Rain likely, mainly before 11am. Cloudy, with a high near 63. Northeast wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly cloudy, with a low around 48. Calm wind.
Friday
Mostly cloudy, with a high near 66. Calm wind becoming east around 6 mph in the afternoon.
Friday Night
Rain, mainly after 2am. Low around 50. Light southeast wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 53. East wind 5 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Showers. Low around 48. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Sunday Night
A chance of showers after 2am. Cloudy, with a low around 56. Chance of precipitation is 50%.
Memorial Day
Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
Monday Night
A chance of showers before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Tuesday
Partly sunny, with a high near 79.
Tuesday Night
Mostly cloudy, with a low around 58.
Wednesday
Partly sunny, with a high near 81.
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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:
9:26 am EDT May 21, 2026
Forecast Valid:
9am EDT May 21, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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