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.

Overcast

48°F

9°C

Humidity 93%
Wind Speed Vrbl 3 mph
Barometer 29.79 in (1008.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 May 6:53 am EDT
Extended Forecast for

Northumberland PA

  • Today

    Today: Showers likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 61. South wind around 6 mph becoming north in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers, mainly before 7pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 47. South wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Monday

    Monday: A slight chance of showers after 3pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 74. South wind 6 to 11 mph. Chance of precipitation is 20%.

    High: 74 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. South wind 7 to 9 mph.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 71. South wind 6 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Showers likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 61. South wind around 6 mph becoming north in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of showers, mainly before 7pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 47. South wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A slight chance of showers after 3pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 74. South wind 6 to 11 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 55. South wind 7 to 9 mph.
Tuesday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 71. South wind 6 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 53.
Friday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Saturday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Northumberland PA
 40.89°N 76.82°W (Elev. 545 ft)
Last Update:
6:40 am EDT May 12, 2024
Forecast Valid:
7am EDT May 12, 2024-6pm EDT May 18, 2024
 
Forecast Discussion
 
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Additional Resources

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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