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.

Fair

57°F

14°C

Humidity 45%
Wind Speed SW 10 G 21 mph
Barometer 29.93 in (1013.7 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 20 Mar 10:54 am EDT
Extended Forecast for

Johnstown PA

  • Today

    Today: Rain, with thunderstorms also possible after 5pm. High near 60. Southwest wind 8 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Rain

  • Tonight

    Tonight: Rain and thunderstorms likely before midnight, then a slight chance of rain between midnight and 1am. Mostly cloudy, with a low around 40. Northwest wind 3 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 58. Light northwest wind.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain after 2pm. Mostly sunny, with a high near 73. West wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 73 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 8pm. Mostly cloudy, with a low around 40. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain Likely

  • Monday

    Monday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Today
Rain, with thunderstorms also possible after 5pm. High near 60. Southwest wind 8 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and thunderstorms likely before midnight, then a slight chance of rain between midnight and 1am. Mostly cloudy, with a low around 40. Northwest wind 3 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Partly sunny, with a high near 58. Light northwest wind.
Saturday Night
Mostly cloudy, with a low around 44. Calm wind.
Sunday
A slight chance of rain after 2pm. Mostly sunny, with a high near 73. West wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Sunday Night
Rain likely, mainly after 8pm. Mostly cloudy, with a low around 40. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Mostly cloudy, with a high near 49.
Monday Night
Mostly clear, with a low around 25.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
A chance of rain and snow. Partly cloudy, with a low around 34. Chance of precipitation is 30%.
Thursday
A chance of rain and snow. Partly sunny, with a high near 63. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown PA
 40.32°N 78.93°W (Elev. 1670 ft)
Last Update:
10:51 am EDT Mar 20, 2026
Forecast Valid:
11am EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
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Additional Resources

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Chance of Precipitation