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.

Fair

52°F

11°C

Humidity 89%
Wind Speed SW 5 mph
Barometer 30.21 in (1022.7 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 23 Jul 7:54 am EDT
Extended Forecast for

Johnstown PA

  • Today

    Today: Sunny, with a high near 75. Calm wind becoming north around 5 mph in the afternoon.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 52. Calm wind.

    Low: 52 °F

    Clear

  • Friday

    Friday: Mostly sunny, with a high near 79. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. Light southeast wind.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Southeast wind 3 to 6 mph.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 61. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 75. Calm wind becoming north around 5 mph in the afternoon.
Tonight
Clear, with a low around 52. Calm wind.
Friday
Mostly sunny, with a high near 79. Calm wind becoming southeast around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 59. Light southeast wind.
Saturday
Mostly sunny, with a high near 79. Southeast wind 3 to 6 mph.
Saturday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Tuesday
Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown PA
 40.32°N 78.93°W (Elev. 1670 ft)
Last Update:
8:06 am EDT Jul 23, 2026
Forecast Valid:
8am EDT Jul 23, 2026-6pm EDT Jul 29, 2026
 
Forecast Discussion
 
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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