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

57°F

14°C

Humidity 74%
Wind Speed S 6 mph
Barometer 29.77 in (1007.0 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 25 Apr 5:54 am EDT
Extended Forecast for

Johnstown PA

  • Today

    Today: Rain, with thunderstorms also possible after 2pm. High near 63. South wind 3 to 7 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 63 °F

    Rain

  • Tonight

    Tonight: A chance of rain. Cloudy, with a low around 43. Southeast wind around 5 mph becoming light and variable. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Chance Rain

  • Sunday

    Sunday: A slight chance of rain before 2pm. Mostly cloudy, with a high near 58. East wind around 6 mph. Chance of precipitation is 20%.

    High: 58 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40. Light east wind.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 67. Calm wind becoming east 5 to 7 mph in the morning.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.

    Low: 51 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely

Detailed Forecast

Today
Rain, with thunderstorms also possible after 2pm. High near 63. South wind 3 to 7 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tonight
A chance of rain. Cloudy, with a low around 43. Southeast wind around 5 mph becoming light and variable. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A slight chance of rain before 2pm. Mostly cloudy, with a high near 58. East wind around 6 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 40. Light east wind.
Monday
Sunny, with a high near 67. Calm wind becoming east 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Wednesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 36.
Friday
A chance of showers. Mostly sunny, with a high near 59. 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:
4:56 am EDT Apr 25, 2026
Forecast Valid:
6am EDT Apr 25, 2026-6pm EDT May 1, 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