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 52%
Wind Speed Calm
Barometer 29.99 in (1015.0 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 17 Apr 7:54 pm EDT
Extended Forecast for

Johnstown-Cambria County Airport PA

  • Tonight

    Tonight: Mostly clear, with a low around 54. Calm wind becoming south around 6 mph after midnight.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm, mainly after 5pm. Increasing clouds, with a high near 77. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Sunny then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 40. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Showers

  • Sunday

    Sunday: A chance of showers, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 48. West wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of rain showers before 11pm, then a chance of rain and snow showers between 11pm and 2am, then a chance of snow showers after 2am. Mostly cloudy, with a low around 31. West wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Rain/Snow

  • Monday

    Monday: A slight chance of snow showers, mixing with rain after 8am, then gradually ending. Mostly sunny, with a high near 42. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain/Snow

  • Monday Night

    Monday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers before 2am. Partly cloudy, with a low around 47. Chance of precipitation is 30%.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Calm wind becoming south around 6 mph after midnight.
Saturday
Showers likely and possibly a thunderstorm, mainly after 5pm. Increasing clouds, with a high near 77. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 40. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A chance of showers, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 48. West wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of rain showers before 11pm, then a chance of rain and snow showers between 11pm and 2am, then a chance of snow showers after 2am. Mostly cloudy, with a low around 31. West wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Monday
A slight chance of snow showers, mixing with rain after 8am, then gradually ending. Mostly sunny, with a high near 42. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 26.
Tuesday
Sunny, with a high near 59.
Tuesday Night
A chance of showers before 2am. Partly cloudy, with a low around 47. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 45. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 48.
Friday
Mostly sunny, with a high near 71.
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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:
3:06 pm EDT Apr 17, 2026
Forecast Valid:
8pm EDT Apr 17, 2026-6pm EDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation