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.

Fair

53°F

12°C

Humidity 100%
Wind Speed Calm
Barometer 30.05 in (1017.4 mb)
Dewpoint 53°F (12°C)
Visibility 9.00 mi
Last update 25 Jun 4:53 am EDT
Extended Forecast for

Mifflinburg PA

  • Today

    Today: Mostly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the afternoon.

    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

Today
Mostly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the afternoon.
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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mifflinburg PA
 40.91°N 77.05°W (Elev. 699 ft)
Last Update:
2:20 am EDT Jun 25, 2026
Forecast Valid:
5am EDT Jun 25, 2026-6pm EDT Jul 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

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