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.

Rain Fog/Mist

69°F

21°C

Humidity 90%
Wind Speed Calm
Barometer 30.04 in (1017.3 mb)
Dewpoint 66°F (19°C)
Visibility 1.63 mi
Last update 16 Aug 12:55 pm EDT
Extended Forecast for

3 Miles NNW Jonestown PA

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 75. South wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 75 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and possibly a thunderstorm before midnight, then showers likely. Low around 68. Southeast wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 68 °F

    Showers then
    Showers
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 87. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Partly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 65. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 84. North wind 3 to 7 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

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

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 75. South wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and possibly a thunderstorm before midnight, then showers likely. Low around 68. Southeast wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Monday
A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 87. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 65. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Sunny, with a high near 84. North wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 86.
Wednesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Thursday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Partly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Jonestown PA
 40.46°N 76.52°W (Elev. 499 ft)
Last Update:
1:00 pm EDT Aug 16, 2026
Forecast Valid:
1pm EDT Aug 16, 2026-6pm EDT Aug 22, 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