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.

Fair

34°F

1°C

Humidity 51%
Wind Speed NE 5 mph
Barometer 30.15 in (1021.7 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 25 Dec 9:55 pm EST
Extended Forecast for

3 Miles NNW Mount Gretna PA

Winter Weather Advisory December 26, 12:00pm until December 27, 07:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Increasing clouds, with a low around 24. North wind 5 to 8 mph.

    Low: 24 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of snow showers, freezing rain, and sleet before 4pm, then sleet likely, possibly mixed with snow showers between 4pm and 5pm, then freezing rain and sleet likely, possibly mixed with snow showers after 5pm. Cloudy, with a high near 31. Light and variable wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.

    High: 31 °F

    Cloudy then
    Wintry Mix
    Likely

  • Friday Night

    Friday Night: Snow showers, freezing rain, and sleet before 1am, then a chance of snow showers and freezing rain between 1am and 4am, then a chance of freezing rain after 4am. Low around 29. Southeast wind 6 to 10 mph becoming northeast after midnight. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.

    Low: 29 °F

    Wintry Mix

  • Saturday

    Saturday: Mostly cloudy, with a high near 37. North wind around 6 mph.

    High: 37 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers, mainly after 1pm. Cloudy, with a high near 39. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers. Low around 35. Chance of precipitation is 80%.

    Low: 35 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 52. Chance of precipitation is 70%.

    High: 52 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Tonight
Increasing clouds, with a low around 24. North wind 5 to 8 mph.
Friday
A chance of snow showers, freezing rain, and sleet before 4pm, then sleet likely, possibly mixed with snow showers between 4pm and 5pm, then freezing rain and sleet likely, possibly mixed with snow showers after 5pm. Cloudy, with a high near 31. Light and variable wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.
Friday Night
Snow showers, freezing rain, and sleet before 1am, then a chance of snow showers and freezing rain between 1am and 4am, then a chance of freezing rain after 4am. Low around 29. Southeast wind 6 to 10 mph becoming northeast after midnight. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.
Saturday
Mostly cloudy, with a high near 37. North wind around 6 mph.
Saturday Night
Mostly cloudy, with a low around 25. Calm wind.
Sunday
A chance of showers, mainly after 1pm. Cloudy, with a high near 39. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers. Low around 35. Chance of precipitation is 80%.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 52. Chance of precipitation is 70%.
Monday Night
Mostly cloudy, with a low around 25. Breezy.
Tuesday
Partly sunny, with a high near 32. Breezy.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 23.
New Year's Day
Mostly cloudy, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Mount Gretna PA
 40.28°N 76.49°W (Elev. 499 ft)
Last Update:
10:06 pm EST Dec 25, 2025
Forecast Valid:
10pm EST Dec 25, 2025-6pm EST Jan 1, 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