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

Severe Thunderstorms and Heavy Rainfall Today from the Central Plains into the Tennessee Valley

Severe thunderstorms capable of damaging winds will be possible from the Ozark Plateau east into portions of the Southeast today. Rounds of heavy thunderstorms ahead of a slow moving front will continue locally heavy rainfall and scattered flash flooding potential from the Ozarks to the Ohio and Tennessee Valleys today. Read More >

Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fog/Mist

66°F

19°C

Humidity 100%
Wind Speed N 3 mph
Barometer 30.10 in (1018.7 mb)
Dewpoint 66°F (19°C)
Visibility 4.00 mi
Last update 12 Jul 2:53 am EDT
Extended Forecast for

Millerstown PA

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 62. Light east wind.

    Low: 62 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 63. Calm wind.

    Low: 63 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 63. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 84. Light and variable wind.
Sunday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 62. Light east wind.
Monday
Patchy fog before 9am. Otherwise, sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Clear, with a low around 63. Calm wind.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Sunny and hot, with a high near 95.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 65.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Millerstown PA
 40.55°N 77.14°W (Elev. 489 ft)
Last Update:
2:21 am EDT Jul 12, 2026
Forecast Valid:
3am EDT Jul 12, 2026-6pm EDT Jul 18, 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