National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

A Few Clouds

80°F

27°C

Humidity 51%
Wind Speed Vrbl 7 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 25 Jun 11:53 am EDT
Extended Forecast for

Mifflinburg PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. South wind 5 to 7 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then a chance of showers. Patchy fog after 3am. Low around 60. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers then
    Showers
    Likely and
    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 82 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Showers likely, mainly after 2am. Cloudy, with a low around 61. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 61 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 78. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. South wind 5 to 7 mph.
Tonight
Showers and thunderstorms before 3am, then a chance of showers. Patchy fog after 3am. Low around 60. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming west 5 to 7 mph in the afternoon.
Friday Night
Showers likely, mainly after 2am. Cloudy, with a low around 61. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 78. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny and hot, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Mostly sunny and hot, with a high near 96.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mifflinburg PA
 40.91°N 77.05°W (Elev. 699 ft)
Last Update:
8:36 am EDT Jun 25, 2026
Forecast Valid:
12pm EDT Jun 25, 2026-6pm EDT Jul 1, 2026
 
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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