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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

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fog/Mist

60°F

16°C

Humidity	100%
Wind Speed	NE 6 mph
Barometer	30.05 in (1016.7 mb)
Dewpoint	60°F (16°C)
Visibility	2.50 mi
Last update	21 Sep 2:54 am EDT

More Information:

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

Extended Forecast for

Portage PA

Overnight
Low: 54 °F
Mostly Cloudy
Monday
High: 59 °F
Chance
Showers then
Showers
Monday Night
Low: 52 °F
Showers
Tuesday
High: 56 °F
Showers
Tuesday Night
Low: 48 °F
Showers
Likely
Wednesday
High: 56 °F
Chance
Showers
Wednesday Night
Low: 47 °F
Chance
Showers
Thursday
High: 58 °F
Partly Sunny
Thursday Night
Low: 44 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly cloudy, with a low around 54. Northeast wind around 5 mph.

Monday

Showers and possibly a thunderstorm. High near 59. East wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

Showers and possibly a thunderstorm. Low around 52. East wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Tuesday

Showers. High near 56. East wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday Night

Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 48. East wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

A chance of showers. Mostly cloudy, with a high near 56. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.

Thursday

Partly sunny, with a high near 58.

Thursday Night

Partly cloudy, with a low around 44.

Friday

Mostly sunny, with a high near 62.

Friday Night

Partly cloudy, with a low around 45.

Saturday

Mostly sunny, with a high near 63.