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

24°C

76°F

Humidity 94%
Wind Speed Calm
Barometer 1016.6 mb (30.03 in)
Dewpoint 23°C (74°F)
Visibility 16 km
Heat Index24°C (76°F)
Last update 13 Jul 12:53 am EDT
Extended Forecast for

Millersburg PA

  • Overnight

    Overnight: A slight chance of showers before 2am, then a slight chance of showers after 3am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 21. Calm wind. Chance of precipitation is 20%.

    Low: 21 °C

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 31. Calm wind becoming southeast 5 to 10 km/h in the morning. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 31 °C

    Chance
    Showers and
    Patchy Fog
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 5am, then a chance of showers. Low around 21. Calm wind. Chance of precipitation is 80%. New rainfall amounts between 7.5 mm and 1 cm possible.

    Low: 21 °C

    T-storms then
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 32. Calm wind. Chance of precipitation is 30%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 32 °C

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 19. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    Low: 19 °C

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 33.

    High: 33 °C

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21.

    Low: 21 °C

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 33. Chance of precipitation is 40%.

    High: 33 °C

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.

    Low: 22 °C

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
A slight chance of showers before 2am, then a slight chance of showers after 3am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 21. Calm wind. Chance of precipitation is 20%.
Sunday
Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 31. Calm wind becoming southeast 5 to 10 km/h in the morning. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.
Sunday Night
Showers and thunderstorms before 5am, then a chance of showers. Low around 21. Calm wind. Chance of precipitation is 80%. New rainfall amounts between 7.5 mm and 1 cm possible.
Monday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 32. Calm wind. Chance of precipitation is 30%. New rainfall amounts between 2.5 and 5 mm possible.
Monday Night
A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 19. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Tuesday
Sunny and hot, with a high near 33.
Tuesday Night
Mostly clear, with a low around 21.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 33. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 33. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 32. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly sunny, with a high near 31. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Millersburg PA
 40.55°N 76.97°W (Elev. 400 m)
Last Update:
11:24 pm EDT Jul 12, 2025
Forecast Valid:
1am EDT Jul 13, 2025-6pm EDT Jul 19, 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