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.

Rain Fog/Mist

59°F

15°C

Humidity 93%
Wind Speed S 12 mph
Barometer 29.86 in (1010.7 mb)
Dewpoint 57°F (14°C)
Visibility 1.25 mi
Last update 11 Mar 9:54 am EDT
Extended Forecast for

Johnstown PA

  • Today

    Today: Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely after 3pm. Some of the storms could be severe. High near 74. Southwest wind 9 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Showers then
    Severe
    Thunderstorms

  • Tonight

    Tonight: Rain showers before 5am, then a slight chance of rain and snow showers. Some thunder is also possible. Low around 31. Southwest wind 11 to 16 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 31 °F

    Severe
    Thunderstorms
    then
    Rain/Snow

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 40. Northwest wind around 15 mph, with gusts as high as 33 mph.

    High: 40 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. West wind 3 to 6 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of rain after 2pm. Mostly cloudy, with a high near 52. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 20%.

    High: 52 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A slight chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Partly cloudy, with a low around 29. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

Detailed Forecast

Today
Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely after 3pm. Some of the storms could be severe. High near 74. Southwest wind 9 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain showers before 5am, then a slight chance of rain and snow showers. Some thunder is also possible. Low around 31. Southwest wind 11 to 16 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 40. Northwest wind around 15 mph, with gusts as high as 33 mph.
Thursday Night
Mostly clear, with a low around 29. West wind 3 to 6 mph.
Friday
A slight chance of rain after 2pm. Mostly cloudy, with a high near 52. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Partly cloudy, with a low around 29. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Mostly cloudy, with a high near 58.
Sunday Night
Showers, mainly after 2am. Low around 36. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 49. Chance of precipitation is 80%.
Monday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 30.
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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:
10:36 am EDT Mar 11, 2026
Forecast Valid:
10am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation