Heavy Rainfall Continues from the Southwest to the Plains; Severe Thunderstorms in the Southern Plains

Pacific tropical moisture wrapping into a storm will continue a multi-day heavy rainfall event this week that will impact the Southwest into the Plains. Scattered severe thunderstorms capable of mainly severe wind gusts appear possible across portions of the southern Plains this afternoon into tonight. There is also a risk of isolated severe winds gusts and tornadoes in Kansas into Nebraska. Read More >

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fair

60°F

16°C

Humidity 96%
Wind Speed Calm
Barometer 30.10 in (1019.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 30 Sep 10:53 pm EDT
Extended Forecast for

Shamokin Dam PA

  • Tonight

    Tonight: Cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Cloudy

  • Thursday

    Thursday: A slight chance of light rain before 10am.  Patchy fog before 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Light Rain
    and Patchy
    Fog then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Showers likely after 2pm.  Increasing clouds, with a high near 82. Calm wind becoming west 5 to 7 mph in the morning.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 82 °F

    Mostly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, mainly before 8pm.  Mostly cloudy, with a low around 49. North wind around 6 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 60. Calm wind.
Thursday
A slight chance of light rain before 10am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 63. Calm wind.
Friday
Showers likely after 2pm. Increasing clouds, with a high near 82. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 49. North wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Shamokin Dam PA
 40.85°N 76.83°W (Elev. 499 ft)
9:56 pm EDT Sep 30, 2026
11pm EDT Sep 30, 2026-6pm EDT Oct 7, 2026
 
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Additional Resources

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