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

65°F

18°C

Humidity 76%
Wind Speed SW 7 mph
Barometer 30.30 in (1025.4 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 8 Sep 9:54 am EDT
Extended Forecast for

Johnstown-Cambria County Airport PA

  • Today

    Today: Partly sunny, with a high near 78. West wind around 6 mph.

    High: 78 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Calm wind becoming south around 6 mph after midnight.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 65. Southwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Mostly Cloudy
    then Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 72. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 57. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 50%.

    High: 75 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Partly sunny, with a high near 78. West wind around 6 mph.
Tonight
Partly cloudy, with a low around 62. Calm wind becoming south around 6 mph after midnight.
Wednesday
Mostly sunny, with a high near 79. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 65. Southwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 72. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 57. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 57.
Saturday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 30%.
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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:
8:05 am EDT Sep 8, 2026
Forecast Valid:
10am EDT Sep 8, 2026-6pm EDT Sep 14, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation