News Headlines
- When does the first frost occur in Central PA? See when the first 36 degree temperatures typically occur.
- A 5th tornado has been determined to have occurred in Central PA (Burnside Twp in northern Centre County) on July 18th, 2026. See details.
- See information on the Cyclone (PA) Tornado of Sept 9th, 2026
Current conditions at
Muir Army Air Field / Indiantown (KMUI)
Lat: 40.44°NLon: 76.56°WElev: 476ft.
Mostly Cloudy
66°F
19°C
| Humidity | 48% |
| Wind Speed | E 7 mph |
| Barometer | 30.39 in (1029.4 mb) |
| Dewpoint | 46°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 23 Sep 3:55 pm EDT |
Extended Forecast for
3 Miles NNW Mount Gretna PA
Tonight
Low: 46 °F
Partly Cloudy
Thursday
High: 68 °F
Mostly Sunny
Thursday Night
Low: 48 °F
Partly Cloudy
Friday
High: 73 °F
Mostly Sunny
Friday Night
Low: 51 °F
Partly Cloudy
Saturday
High: 72 °F
Mostly Sunny
Saturday Night
Low: 52 °F
Mostly Cloudy
Sunday
High: 71 °F
Partly Sunny
Sunday Night
Low: 53 °F
Mostly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 46. Northeast wind 7 to 10 mph.
Thursday
Mostly sunny, with a high near 68. Northeast wind 9 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 48. North wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 73. North wind 10 to 15 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 51. North wind around 14 mph, with gusts as high as 22 mph.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 71.
Sunday Night
Mostly cloudy, with a low around 53.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 78.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNW Mount Gretna PA
40.28°N 76.49°W (Elev. 499 ft)
40.28°N 76.49°W (Elev. 499 ft)
2:26 pm EDT Sep 23, 2026
4pm EDT Sep 23, 2026-6pm EDT Sep 30, 2026
Additional Resources
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