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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

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Overcast

61°F

16°C

Humidity	90%
Wind Speed	N 12 mph
Barometer	29.79 in (1008.6 mb)
Dewpoint	58°F (14°C)
Visibility	10.00 mi
Last update	27 Sep 10:53 pm EDT

More Information:

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

Extended Forecast for

Marietta PA

Tonight
Low: 59 °F
Chance
Showers
Monday
High: 68 °F
Cloudy
Monday Night
Low: 57 °F
Mostly Cloudy
Tuesday
High: 74 °F
Mostly Sunny
Tuesday Night
Low: 57 °F
Partly Cloudy
Wednesday
High: 78 °F
Mostly Sunny
Wednesday Night
Low: 60 °F
Partly Cloudy
Thursday
High: 82 °F
Mostly Sunny
Thursday Night
Low: 63 °F
Partly Cloudy

Detailed Forecast

Tonight

A chance of showers. Cloudy, with a low around 59. North wind around 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Monday

Cloudy, with a high near 68. Northwest wind around 9 mph.

Monday Night

Mostly cloudy, with a low around 57. Northwest wind around 5 mph becoming calm in the evening.

Tuesday

Mostly sunny, with a high near 74. Northwest wind 3 to 7 mph.

Tuesday Night

Partly cloudy, with a low around 57. Calm wind.

Wednesday

Mostly sunny, with a high near 78.

Wednesday Night

Partly cloudy, with a low around 60.