National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

63°F

17°C

Humidity 81%
Wind Speed W 10 G 21 mph
Barometer 29.95 in (1013.3 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 23 Aug 10:54 am EDT
Extended Forecast for

Johnstown PA

  • Today

    Today: Scattered showers and thunderstorms. Partly sunny, with a high near 70. West wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Scattered
    Showers

  • Tonight

    Tonight: A chance of showers, mainly between midnight and 2am. Partly cloudy, with a low around 54. Southwest wind 3 to 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 68. West wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 68 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. West wind around 6 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. West wind 3 to 8 mph.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Scattered showers and thunderstorms. Partly sunny, with a high near 70. West wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers, mainly between midnight and 2am. Partly cloudy, with a low around 54. Southwest wind 3 to 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 68. West wind 6 to 13 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 53. West wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 73. West wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 77.
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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:
9:17 am EDT Aug 23, 2026
Forecast Valid:
11am EDT Aug 23, 2026-6pm EDT Aug 29, 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