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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
See information on 3 Tornadoes that occurred on September 1st, 2026

Current conditions at

Muir Army Air Field / Indiantown (KMUI)

Lat: 40.44° N Lon: 76.56° W Elev: 476 ft.

Light Rain Fog/Mist

72°F

22°C

Humidity	92%
Wind Speed	Calm
Barometer	29.87 in (1011.6 mb)
Dewpoint	69°F (21°C)
Visibility	4.00 mi
Last update	20 Sep 3:55 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Lebanon County

Tonight

Mostly cloudy. Rain likely this evening. Patchy fog. Lows in the upper 50s. North winds 5 to 10 mph. Chance of rain 70 percent.

Monday

Cloudy. Patchy fog in the morning. A slight chance of showers in the afternoon. Highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Monday Night

Cloudy. A chance of showers in the evening, then showers after midnight. Lows in the lower 50s. Northeast winds 10 to 15 mph. Chance of rain 90 percent.

Tuesday

Showers. Highs in the lower 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.

Tuesday Night

Cloudy. Showers likely, mainly in the evening. Lows in the upper 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

Wednesday

Mostly cloudy with a 40 percent chance of showers. Highs in the mid 60s.

Wednesday Night

Mostly cloudy. Lows in the upper 40s.

Thursday

Partly sunny. Highs in the mid 60s.

Thursday Night

Mostly cloudy. Lows in the upper 40s.

Friday

Mostly sunny. Highs in the upper 60s.

Friday Night

Partly cloudy. Lows in the upper 40s.