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.

Partly Cloudy

82°F

28°C

Humidity 46%
Wind Speed NA
Barometer 29.98 in (1014.7 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 20 Jun 2:53 pm EDT
Extended Forecast for

3 Miles ENE Mc Alisterville PA

Extreme Heat Watch June 22, 11:00am until June 25, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. West wind 5 to 7 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70. Light southwest wind.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 95. Heat index values as high as 103. Calm wind becoming west 5 to 7 mph in the morning.

    High: 95 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Light west wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 66. West wind 5 to 7 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 70. Light southwest wind.
Sunday
Mostly sunny and hot, with a high near 95. Heat index values as high as 103. Calm wind becoming west 5 to 7 mph in the morning.
Sunday Night
Mostly clear, with a low around 74. Light west wind.
Monday
Sunny and hot, with a high near 96.
Monday Night
Mostly clear, with a low around 73.
Tuesday
Sunny and hot, with a high near 96.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
A chance of showers after 2pm. Sunny and hot, with a high near 93. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 88. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Mc Alisterville PA
 40.66°N 77.21°W (Elev. 699 ft)
Last Update:
2:38 pm EDT Jun 20, 2025
Forecast Valid:
3pm EDT Jun 20, 2025-6pm EDT Jun 27, 2025
 
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