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.

Overcast

71°F

22°C

Humidity 81%
Wind Speed Calm
Barometer 29.93 in (1013.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 16 May 9:55 pm EDT
Extended Forecast for

Jonestown PA

  • Tonight

    Tonight: A slight chance of showers before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 59. West wind 3 to 5 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: Mostly cloudy through mid morning, then gradual clearing, with a high near 91. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 91 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. South wind 5 to 7 mph becoming calm after midnight.

    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 and possibly a thunderstorm after 2pm. High near 93. Chance of precipitation is 80%.

    High: 93 °F

    Mostly Sunny
    then Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 56. Chance of precipitation is 80%.

    Low: 56 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 59. West wind 3 to 5 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
Mostly cloudy through mid morning, then gradual clearing, 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. South wind 5 to 7 mph becoming calm after midnight.
Tuesday
Sunny and hot, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 93. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 56. Chance of precipitation is 80%.
Thursday
Partly sunny, with a high near 70.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 69. 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:
8:06 pm EDT May 16, 2026
Forecast Valid:
10pm EDT May 16, 2026-6pm EDT May 23, 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