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Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

38°F

3°C

Humidity 97%
Wind Speed NW 12 mph
Barometer 29.91 in (1013.8 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 1 May 11:54 pm EDT
Extended Forecast for

Johnstown PA

Freeze Warning May 2, 12:00am until May 2, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Patchy frost between 2am and 5am. Otherwise, mostly cloudy, with a low around 34. Northwest wind 3 to 5 mph.

    Low: 34 °F

    Patchy Frost

  • Saturday

    Saturday: Areas of frost between 7am and 9am. Otherwise, partly sunny, with a high near 52. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 52 °F

    Areas Frost
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 2am. Otherwise, partly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Partly Cloudy
    then Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 56. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 56 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 42. Southwest wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 68. Chance of precipitation is 20%.

    High: 68 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.

    High: 74 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Tonight
Patchy frost between 2am and 5am. Otherwise, mostly cloudy, with a low around 34. Northwest wind 3 to 5 mph.
Saturday
Areas of frost between 7am and 9am. Otherwise, partly sunny, with a high near 52. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Widespread frost, mainly after 2am. Otherwise, partly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 56. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 42. Southwest wind 3 to 5 mph. Chance of precipitation is 20%.
Monday
A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 68. Chance of precipitation is 20%.
Monday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Wednesday
Showers. High near 65. Chance of precipitation is 80%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.
Thursday
Showers likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 57. Chance of precipitation is 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:
8:06 pm EDT May 1, 2026
Forecast Valid:
11pm EDT May 1, 2026-6pm EDT May 8, 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