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.

Mostly Cloudy

72°F

22°C

Humidity 71%
Wind Speed Calm
Barometer 30.10 in (1017.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 12 Jul 11:54 pm EDT
Extended Forecast for

Johnstown-Cambria County Airport PA

  • Overnight

    Overnight: A slight chance of showers, then a chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 69. South wind around 6 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms, mainly after 2pm. High near 83. Southwest wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Chance
    T-storms then
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 8pm. Low around 66. West wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    T-storms then
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. West wind around 7 mph. Chance of precipitation is 20%.

    High: 81 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. Light and variable wind.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A slight chance of showers, then a chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 69. South wind around 6 mph. Chance of precipitation is 30%.
Sunday
Showers and thunderstorms, mainly after 2pm. High near 83. Southwest wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms, mainly before 8pm. Low around 66. West wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. West wind around 7 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 64. Light and variable wind.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Thursday
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Saturday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown-Cambria County Airport PA
 40.31°N 78.84°W (Elev. 2221 ft)
Last Update:
11:24 pm EDT Jul 12, 2025
Forecast Valid:
12am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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