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.

Fair

72°F

22°C

Humidity 32%
Wind Speed SW 10 mph
Barometer 29.92 in (1013.6 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 9 Mar 5:55 pm EDT
Extended Forecast for

2 Miles WNW Mount Gretna PA

  • Tonight

    Tonight: Clear, with a low around 46. Southwest wind 5 to 8 mph becoming calm after midnight.

    Low: 46 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. Southeast wind 3 to 6 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 74. South wind 5 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm, then showers after 2am. Low around 40. Breezy, with a south wind 17 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Rain showers before 2pm, then a slight chance of rain and snow showers. High near 49. Breezy. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 49 °F

    Breezy.
    Showers then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 47. Breezy.

    High: 47 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 46. Southwest wind 5 to 8 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 74. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 55. Southeast wind 3 to 6 mph.
Wednesday
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 74. South wind 5 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm, then showers after 2am. Low around 40. Breezy, with a south wind 17 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain showers before 2pm, then a slight chance of rain and snow showers. High near 49. Breezy. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 47. Breezy.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
Cloudy, with a high near 59.
Sunday Night
Showers likely. Mostly cloudy, with a low around 41. Breezy. Chance of precipitation is 60%.
Monday
Rain and snow showers likely. Mostly cloudy, with a high near 48. Breezy. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Mount Gretna PA
 40.26°N 76.5°W (Elev. 682 ft)
Last Update:
2:26 pm EDT Mar 9, 2026
Forecast Valid:
6pm EDT Mar 9, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation