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.

A Few Clouds

77°F

25°C

Humidity 62%
Wind Speed N 6 mph
Barometer 30.07 in (1018.0 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 25 May 4:53 pm EDT
Extended Forecast for

4 Miles E McAlisterville PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 79. Light and variable wind.

    High: 79 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers before 2pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 81. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 81 °F

    Chance
    Showers and
    Areas Fog

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. Calm wind.
Tuesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 79. Light and variable wind.
Tuesday Night
A chance of showers after 2am. Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers before 2pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 81. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 59. Calm wind.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 70.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E McAlisterville PA
 40.64°N 77.21°W (Elev. 699 ft)
Last Update:
2:36 pm EDT May 25, 2026
Forecast Valid:
5pm EDT May 25, 2026-6pm EDT Jun 1, 2026
 
Forecast Discussion
 
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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