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

Muir Army Air Field / Indiantown (KMUI)

Lat: 40.44°NLon: 76.56°WElev: 476ft.

Fog/Mist

34°F

1°C

Humidity 97%
Wind Speed Calm
Barometer 29.95 in (1015.0 mb)
Dewpoint 33°F (1°C)
Visibility 1.38 mi
Last update 23 Dec 11:55 pm EST
Extended Forecast for

Williamstown PA

  • Overnight

    Overnight: Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Light west wind becoming northwest 10 to 15 mph. Winds could gust as high as 30 mph.

    Low: 33 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 42. Northwest wind 6 to 15 mph, with gusts as high as 32 mph.

    High: 42 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 28. Calm wind.

    Low: 28 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: Mostly cloudy, with a high near 43. South wind 5 to 7 mph becoming northwest in the afternoon.

    High: 43 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 22. North wind around 7 mph, with gusts as high as 21 mph.

    Low: 22 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of snow before 1pm, then snow and freezing rain likely, possibly mixed with sleet. Cloudy, with a high near 31. Chance of precipitation is 70%. New snow and sleet accumulation of 1 to 2 inches possible.

    High: 31 °F

    Chance Snow
    then Wintry
    Mix Likely

  • Friday Night

    Friday Night: Freezing rain, mainly before 1am. Low around 24. Chance of precipitation is 90%.

    Low: 24 °F

    Freezing Rain

  • Saturday

    Saturday: Cloudy, with a high near 36.

    High: 36 °F

    Cloudy

  • Saturday Night

    Saturday Night: A chance of showers after 1am. Cloudy, with a low around 30. Chance of precipitation is 40%.

    Low: 30 °F

    Cloudy then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Light west wind becoming northwest 10 to 15 mph. Winds could gust as high as 30 mph.
Wednesday
Sunny, with a high near 42. Northwest wind 6 to 15 mph, with gusts as high as 32 mph.
Wednesday Night
Increasing clouds, with a low around 28. Calm wind.
Christmas Day
Mostly cloudy, with a high near 43. South wind 5 to 7 mph becoming northwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 22. North wind around 7 mph, with gusts as high as 21 mph.
Friday
A chance of snow before 1pm, then snow and freezing rain likely, possibly mixed with sleet. Cloudy, with a high near 31. Chance of precipitation is 70%. New snow and sleet accumulation of 1 to 2 inches possible.
Friday Night
Freezing rain, mainly before 1am. Low around 24. Chance of precipitation is 90%.
Saturday
Cloudy, with a high near 36.
Saturday Night
A chance of showers after 1am. Cloudy, with a low around 30. Chance of precipitation is 40%.
Sunday
Showers. High near 42. Chance of precipitation is 80%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Monday
Mostly cloudy, with a high near 30.
Monday Night
Mostly cloudy, with a low around 16.
Tuesday
Partly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williamstown PA
 40.58°N 76.61°W (Elev. 699 ft)
Last Update:
11:36 pm EST Dec 23, 2025
Forecast Valid:
12am EST Dec 24, 2025-6pm EST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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