National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

59°F

15°C

Humidity 90%
Wind Speed W 15 G 32 mph
Barometer 29.91 in (1011.8 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 19 Jun 8:54 pm EDT
Extended Forecast for

Johnstown PA

  • Tonight

    Tonight: A slight chance of showers before 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 58. West wind 6 to 8 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Friday

    Friday: Patchy fog before 7am. Otherwise, partly sunny, with a high near 79. West wind 9 to 11 mph.

    High: 79 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 64. West wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 94.

    High: 94 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers before 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 58. West wind 6 to 8 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday
Patchy fog before 7am. Otherwise, partly sunny, with a high near 79. West wind 9 to 11 mph.
Friday Night
Mostly cloudy, with a low around 64. West wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 69. Calm wind.
Sunday
Sunny and hot, with a high near 92.
Sunday Night
Mostly clear, with a low around 71.
Monday
Sunny and hot, with a high near 94.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Sunny and hot, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
A chance of showers. Mostly sunny and hot, with a high near 92. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 50%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnstown PA
 40.34°N 78.89°W (Elev. 1299 ft)
Last Update:
8:16 pm EDT Jun 19, 2025
Forecast Valid:
9pm EDT Jun 19, 2025-6pm EDT Jun 26, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation