Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Overcast

59°F

15°C

Humidity 96%
Wind Speed S 3 mph
Barometer 29.79 in (1008.6 mb)
Dewpoint 58°F (14°C)
Visibility 9.00 mi
Last update 19 Apr 1:53 am EDT
Extended Forecast for

Millersburg PA

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch
  • Overnight

    Overnight: Showers likely, mainly after 2am.  Cloudy, with a low around 46. East wind around 6 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers, mainly before 10am.  High near 54. Northwest wind 10 to 14 mph, with gusts as high as 26 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain showers after 2am, mixing with snow after 3am.  Increasing clouds, with a low around 37. West wind 3 to 7 mph.  Chance of precipitation is 20%.

    Low: 37 °F

    Mostly Clear
    then Slight
    Chance
    Rain/Snow

  • Monday

    Monday: Mostly sunny, with a high near 48. Northwest wind around 10 mph, with gusts as high as 22 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am.  Mostly cloudy, with a low around 44. Chance of precipitation is 30%.

    Low: 44 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 8am.  Partly sunny, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers likely, mainly after 2am. Cloudy, with a low around 46. East wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly before 10am. High near 54. Northwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A slight chance of rain showers after 2am, mixing with snow after 3am. Increasing clouds, with a low around 37. West wind 3 to 7 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 48. Northwest wind around 10 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 29. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 55.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 30%.
Wednesday
A chance of showers before 8am. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 53.
Saturday
A chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Millersburg PA
 40.55°N 76.94°W (Elev. 525 ft)
12:52 am EDT Apr 19, 2026
1am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database