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.

Fair

51°F

11°C

Humidity 70%
Wind Speed NE 7 mph
Barometer 30.39 in (1029.4 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 24 Sep 3:55 am EDT
Extended Forecast for

Grantville PA

  • Today

    Today: Mostly sunny, with a high near 68. Northeast wind around 8 mph, with gusts as high as 20 mph.

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Calm wind becoming north around 6 mph after midnight.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 73. North wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. North wind around 10 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 73. North wind 11 to 14 mph, with gusts as high as 26 mph.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 40%.

    High: 69 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 68. Northeast wind around 8 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 47. Calm wind becoming north around 6 mph after midnight.
Friday
Sunny, with a high near 73. North wind 8 to 11 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 52. North wind around 10 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 73. North wind 11 to 14 mph, with gusts as high as 26 mph.
Saturday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 54.
Monday
Partly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grantville PA
 40.39°N 76.7°W (Elev. 495 ft)
Last Update:
2:21 am EDT Sep 24, 2026
Forecast Valid:
4am EDT Sep 24, 2026-6pm EDT Sep 30, 2026
 
Forecast Discussion
 
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Additional Resources

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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