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.

A Few Clouds

59°F

15°C

Humidity 51%
Wind Speed W 14 G 20 mph
Barometer 30.04 in (1017.4 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 15 May 2:54 pm EDT
Extended Forecast for

Johnstown-Cambria County Airport PA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 46. Northwest wind 5 to 9 mph becoming light and variable.

    Low: 46 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: A chance of showers, mainly after 5pm. Mostly sunny, with a high near 76. South wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Sunny then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 59. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 77. West wind 7 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. Calm wind becoming south around 5 mph after midnight.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers after 2pm. Sunny, with a high near 85. Chance of precipitation is 20%.

    High: 85 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 46. Northwest wind 5 to 9 mph becoming light and variable.
Saturday
A chance of showers, mainly after 5pm. Mostly sunny, with a high near 76. South wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 59. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 77. West wind 7 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 61. Calm wind becoming south around 5 mph after midnight.
Monday
A slight chance of showers after 2pm. Sunny, with a high near 85. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Sunny, with a high near 86.
Tuesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Wednesday
Showers, mainly after 2pm. High near 76. Chance of precipitation is 80%.
Wednesday Night
Showers. Low around 53. Chance of precipitation is 80%.
Thursday
Partly sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 70.
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Forecast Area
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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:
2:21 pm EDT May 15, 2026
Forecast Valid:
3pm EDT May 15, 2026-6pm EDT May 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation