Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31° N Lon: 78.83° W Elev: 2274 ft.

Thunderstorm in Vicinity Heavy Rain Fog/Mist

65°F

18°C

Humidity 97%
Wind Speed NW 17 G 25 mph
Barometer 30.15 in (1020.0 mb)
Dewpoint 64°F (18°C)
Visibility 4.00 mi
Last update 3 Sep 9:54 pm EDT
Detailed forecast for

Cambria County

Tonight
Showers and thunderstorms, mainly this evening. Some thunderstorms may be severe with damaging winds, large hail, and heavy rainfall this evening. Locally heavy rainfall possible this evening. Lows in the mid 60s. West winds 5 to 10 mph. Chance of rain near 100 percent.
Friday
Partly sunny with a chance of showers with a slight chance of thunderstorms in the morning, then mostly cloudy with showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds. Humid with highs in the upper 70s. West winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 90 percent.
Friday Night
Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Some thunderstorms may produce gusty winds. Humid with lows in the lower 60s. Northwest winds 5 to 10 mph. Chance of rain 70 percent.
Saturday
Mostly cloudy in the morning, then becoming mostly sunny. A 40 percent chance of showers. Highs in the mid 70s. North winds 5 to 10 mph.
Saturday Night
Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s. Northeast winds around 5 mph.
Sunday
Sunny. Highs in the lower 70s.
Sunday Night
Mostly clear. Lows in the lower 50s.
Labor Day
Sunny. Highs in the mid 70s.
Monday Night
Partly cloudy. Lows in the mid 50s.
Tuesday
Mostly sunny. Highs in the upper 70s.
Tuesday Night
Mostly cloudy. Lows in the upper 50s.
Wednesday
Partly sunny. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 30 percent.
Wednesday Night
Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40 percent.
Thursday
Partly sunny with a 40 percent chance of showers. Humid with highs in the upper 70s.



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900 PM EDT Thu Sep 3 2026
 
 

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