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.

Mostly Cloudy

59°F

15°C

Humidity 62%
Wind Speed N 10 mph
Barometer 29.95 in (1014.5 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 May 9:55 am EDT
Extended Forecast for

Jonestown PA

  • Today

    Today: Partly sunny, with a high near 68. Northwest wind 11 to 13 mph, with gusts as high as 22 mph.

    High: 68 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 81. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers. Mostly cloudy, with a low around 59. South wind 5 to 7 mph becoming light and variable in the evening. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers. Mostly sunny, with a high near 86. West wind around 6 mph. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

Detailed Forecast

Today
Partly sunny, with a high near 68. Northwest wind 11 to 13 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Calm wind.
Saturday
Sunny, with a high near 81. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 59. South wind 5 to 7 mph becoming light and variable in the evening. Chance of precipitation is 20%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 86. West wind around 6 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny and hot, with a high near 92.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny and hot, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Showers likely. Mostly sunny, with a high near 88. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 40%.
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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:
9:39 am EDT May 15, 2026
Forecast Valid:
11am EDT May 15, 2026-6pm EDT May 21, 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