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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Jonestown PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. Southwest wind 9 to 11 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers between 10pm and 11pm. Increasing clouds, with a low around 59. West wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 86. West wind 3 to 6 mph.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 91. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 91 °F

    Sunny

  • 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 94.

    High: 94 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 70%.

    High: 91 °F

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 81. Southwest wind 9 to 11 mph.
Tonight
A slight chance of showers between 10pm and 11pm. Increasing clouds, with a low around 59. West wind 3 to 7 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 86. West wind 3 to 6 mph.
Sunday Night
Partly cloudy, with a low around 61. Calm wind.
Monday
Sunny, with a high near 91. Calm wind becoming south 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny and hot, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Partly sunny, with a high near 71.
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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:
12:45 pm EDT May 16, 2026
Forecast Valid:
1pm EDT May 16, 2026-6pm EDT May 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