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 42%
Wind Speed SW 8 mph
Barometer 29.74 in (1007.1 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 17 Jun 2:55 pm EDT
Extended Forecast for

Jonestown PA

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms. Partly sunny, with a high near 83. Southwest wind around 10 mph. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. Southeast wind 5 to 7 mph.

    Low: 67 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 90. Breezy, with a south wind 11 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    Showers then
    Slight Chance
    T-storms and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. West wind 6 to 14 mph, with gusts as high as 29 mph.

    Low: 62 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 83. West wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Partly sunny, with a high near 83. Southwest wind around 10 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 67. Southeast wind 5 to 7 mph.
Thursday
A chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 90. Breezy, with a south wind 11 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 62. West wind 6 to 14 mph, with gusts as high as 29 mph.
Juneteenth
Sunny, with a high near 83. West wind 9 to 15 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Monday
Showers. High near 80. Chance of precipitation is 80%.
Monday Night
Showers likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jonestown PA
 40.41°N 76.47°W (Elev. 482 ft)
Last Update:
2:21 pm EDT Jun 17, 2026
Forecast Valid:
3pm EDT Jun 17, 2026-6pm EDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation