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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Johnstown PA

  • This Afternoon

    This Afternoon: A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 64. South wind around 6 mph. Chance of precipitation is 20%.

    High: 64 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am. Mostly cloudy, with a low around 53. Light southeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms before 11am, then showers and possibly a thunderstorm, mainly after 11am. High near 64. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 64 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 42. Northwest wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Showers
    Likely

  • Thursday

    Thursday: A slight chance of showers after 2pm. Partly sunny, with a high near 55. Northwest wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 55 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 50%.

    High: 54 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 64. South wind around 6 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am. Mostly cloudy, with a low around 53. Light southeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms before 11am, then showers and possibly a thunderstorm, mainly after 11am. High near 64. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 42. Northwest wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers after 2pm. Partly sunny, with a high near 55. Northwest wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 36.
Friday
A chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 50%.
Friday Night
Partly cloudy, with a low around 33.
Saturday
Partly sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 38.
Monday
A chance of showers. Partly sunny, with a high near 58. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 65.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnstown PA
 40.32°N 78.93°W (Elev. 1670 ft)
Last Update:
2:21 pm EDT Apr 28, 2026
Forecast Valid:
4pm EDT Apr 28, 2026-6pm EDT May 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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