Fire Weather Issues; Pacific System Moving Inland

Dry fuels, strong winds and dry weather will continue to bring elevated to critical fire weather conditions to the areas of the Plains, Midwest and Southeast today. A Pacific storm system will bring low elevation rain and heavy high elevation mountain snow to California through early week, expanding into the Pacific Northwest, Great Basin, and southern California on Tuesday. Read More >

Current conditions at

Muir Army Air Field / Indiantown (KMUI)

Lat: 40.44°NLon: 76.56°WElev: 476ft.

Mostly Cloudy

47°F

8°C

Humidity 25%
Wind Speed W 9 G 23 mph
Barometer 30.23 in (1024.3 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 20 Apr 5:55 pm EDT
Extended Forecast for

Williamstown PA

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

    Tonight: Widespread frost after 2am.  Otherwise, mostly clear, with a low around 27. North wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: 27 °F

    Partly Cloudy
    then Frost

  • Tuesday

    Tuesday: Widespread frost before 9am.  Otherwise, sunny, with a high near 56. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 56 °F

    Frost then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 2am.  Mostly cloudy, with a low around 42. South wind around 6 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly before 2pm.  Partly sunny, with a high near 67. Southeast wind around 5 mph becoming west in the afternoon.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45. Light north wind.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 8pm.  Mostly cloudy, with a low around 49. Chance of precipitation is 40%.

    Low: 49 °F

    Chance
    Showers

Detailed Forecast

Tonight
Widespread frost after 2am. Otherwise, mostly clear, with a low around 27. North wind 3 to 8 mph. Winds could gust as high as 20 mph.
Tuesday
Widespread frost before 9am. Otherwise, sunny, with a high near 56. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 42. South wind around 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, mainly before 2pm. Partly sunny, with a high near 67. Southeast wind around 5 mph becoming west in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 45. Light north wind.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 47.
Friday
Mostly sunny, with a high near 72.
Friday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.
Saturday
Showers likely, mainly after 2pm. Partly sunny, with a high near 63. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 63. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 63. Chance of precipitation is 40%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Williamstown PA
 40.58°N 76.61°W (Elev. 699 ft)
3:41 pm EDT Apr 20, 2026
7pm EDT Apr 20, 2026-6pm EDT Apr 27, 2026
 
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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