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.

Partly Cloudy

82°F

28°C

Humidity 40%
Wind Speed S 6 mph
Barometer 30.01 in (1016.3 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 22 Aug 3:55 pm EDT
Extended Forecast for

Jonestown PA

  • Tonight

    Tonight: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 65. South wind 6 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Mostly Clear
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. South wind 6 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 65. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers, mainly before 8am. Mostly sunny, with a high near 81. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 81 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 58. Calm wind.
Saturday
Sunny, with a high near 84. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 65. South wind 6 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. South wind 6 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 65. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A chance of showers, mainly before 8am. Mostly sunny, with a high near 81. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Jonestown PA
 40.41°N 76.47°W (Elev. 482 ft)
Last Update:
11:50 am EDT Aug 22, 2025
Forecast Valid:
4pm EDT Aug 22, 2025-6pm EDT Aug 29, 2025
 
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