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.

Mostly Cloudy

73°F

23°C

Humidity 46%
Wind Speed NW 10 G 21 mph
Barometer 29.94 in (1014.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 15 May 1:55 pm EDT
Extended Forecast for

Williamstown PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 67. Northwest wind around 9 mph, with gusts as high as 21 mph.

    High: 67 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 9pm. Mostly cloudy, with a low around 58. Southwest wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers after 2pm. Mostly sunny, with a high near 84. Northwest wind around 6 mph. Chance of precipitation is 20%.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

Detailed Forecast

This Afternoon
Partly sunny, with a high near 67. Northwest wind around 9 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 48. Calm wind.
Saturday
Sunny, with a high near 80. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
A chance of showers, mainly after 9pm. Mostly cloudy, with a low around 58. Southwest wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A slight chance of showers after 2pm. Mostly sunny, with a high near 84. Northwest wind around 6 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny and hot, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Showers likely. Partly sunny, with a high near 85. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamstown PA
 40.58°N 76.61°W (Elev. 699 ft)
Last Update:
2:21 pm EDT May 15, 2026
Forecast Valid:
2pm EDT May 15, 2026-6pm EDT May 21, 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