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.

Overcast

59°F

15°C

Humidity 83%
Wind Speed SW 7 mph
Barometer 29.97 in (1013.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Mar 2:54 am EDT
Extended Forecast for

Johnstown-Cambria County Airport PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 59. South wind around 9 mph.

    Low: 59 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could be severe. High near 71. South wind 11 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 71 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 32. West wind around 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 32 °F

    Showers then
    Rain/Snow

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 37. Breezy, with a northwest wind 18 to 20 mph, with gusts as high as 39 mph.

    High: 37 °F

    Cloudy and
    Breezy then
    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. West wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of rain after 2pm. Mostly cloudy, with a high near 50. Breezy. Chance of precipitation is 20%.

    High: 50 °F

    Mostly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28. Breezy.

    Low: 28 °F

    Partly Cloudy
    and Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 59. South wind around 9 mph.
Wednesday
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could be severe. High near 71. South wind 11 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 32. West wind around 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 37. Breezy, with a northwest wind 18 to 20 mph, with gusts as high as 39 mph.
Thursday Night
Mostly clear, with a low around 28. West wind 8 to 11 mph, with gusts as high as 20 mph.
Friday
A slight chance of rain after 2pm. Mostly cloudy, with a high near 50. Breezy. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 28. Breezy.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Mostly cloudy, with a high near 54. Breezy.
Sunday Night
Showers. Low around 35. Breezy. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 44. Breezy. Chance of precipitation is 80%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown-Cambria County Airport PA
 40.31°N 78.84°W (Elev. 2221 ft)
Last Update:
2:26 am EDT Mar 11, 2026
Forecast Valid:
3am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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