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

Hazardous Weather Conditions

Current conditions at

Muir Army Air Field / Indiantown (KMUI)

Lat: 40.44°NLon: 76.56°WElev: 476ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Williamstown PA

Freeze Warning October 18, 01:00am until October 18, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Widespread frost after 2am. Otherwise, clear, with a low around 32. Calm wind.

    Low: 32 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 9am. Otherwise, sunny, with a high near 59. Light and variable wind.

    High: 59 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 4am. Otherwise, clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear then
    Areas Frost

  • Monday

    Monday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming north around 5 mph in the afternoon.

    High: 65 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. Calm wind becoming north around 5 mph after midnight.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 67.

    High: 67 °F

    Patchy Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread frost after 2am. Otherwise, clear, with a low around 32. Calm wind.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 59. Light and variable wind.
Sunday Night
Areas of frost after 4am. Otherwise, clear, with a low around 34. Calm wind.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 37. Calm wind becoming north around 5 mph after midnight.
Tuesday
Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 41.
Friday
Sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 63.
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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:
10:17 pm EDT Oct 17, 2026
Forecast Valid:
11pm EDT Oct 17, 2026-6pm EDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation