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

Fire Weather Concerns in the Southern Plains and Southeast; Pacific System to Bring Unsettled Weather to the West Coast

Gusty winds and dry conditions will continue to bring elevated to critical fire weather conditions to the southern Plains and Southeast early this week. A Pacific storm system will bring low elevation rain and heavy high elevation mountain snow to northern and central California through early week, expanding into the Pacific Northwest, Great Basin, and southern California on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fair

35°F

2°C

Humidity 85%
Wind Speed Calm
Barometer 30.10 in (1019.4 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 19 Apr 10:53 pm EDT
Extended Forecast for

4 Miles NNE Millerstown PA

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

  • Tonight

    Tonight: A chance of showers, mainly between 1am and 3am. Mostly cloudy, with a low around 37. Light west wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance
    Showers

  • Monday

    Monday: Areas of frost between 7am and 8am. Otherwise, mostly sunny, with a high near 47. Northwest wind 8 to 10 mph, with gusts as high as 22 mph.

    High: 47 °F

    Areas Frost
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Widespread frost after 4am. Otherwise, mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm in the evening.

    Low: 28 °F

    Partly Cloudy
    then Frost

  • Tuesday

    Tuesday: Widespread frost before 8am. Otherwise, sunny, with a high near 56. Calm wind becoming south around 6 mph in the afternoon.

    High: 56 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 42. Light south wind. Chance of precipitation is 40%.

    Low: 42 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly before 2pm. Partly sunny, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers, mainly between 1am and 3am. Mostly cloudy, with a low around 37. Light west wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Areas of frost between 7am and 8am. Otherwise, mostly sunny, with a high near 47. Northwest wind 8 to 10 mph, with gusts as high as 22 mph.
Monday Night
Widespread frost after 4am. Otherwise, mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Widespread frost before 8am. Otherwise, sunny, with a high near 56. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 42. Light south wind. Chance of precipitation is 40%.
Wednesday
A chance of showers, mainly before 2pm. Partly sunny, with a high near 68. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 75.
Friday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Saturday
Showers likely. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 61. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Millerstown PA
 40.61°N 77.13°W (Elev. 568 ft)
Last Update:
8:06 pm EDT Apr 19, 2026
Forecast Valid:
11pm EDT Apr 19, 2026-6pm EDT Apr 26, 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