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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 73%
Wind Speed NW 10 mph
Barometer 29.92 in (1014.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 2 May 6:54 pm EDT
Extended Forecast for

Johnstown PA

Freeze Warning May 2, 11:00pm until May 3, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: A slight chance of showers before 8pm. Widespread frost, mainly after 1am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 29. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Showers then
    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 57. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 57 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. Southwest wind around 5 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 69. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 55. Southwest wind around 6 mph. Chance of precipitation is 40%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.

    Low: 56 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 2pm. High near 65. Chance of precipitation is 90%.

    High: 65 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Showers

Detailed Forecast

Tonight
A slight chance of showers before 8pm. Widespread frost, mainly after 1am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 29. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 57. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 43. Southwest wind around 5 mph.
Monday
Mostly sunny, with a high near 69. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Monday Night
A chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 55. Southwest wind around 6 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Wednesday
Showers, with thunderstorms also possible after 2pm. High near 65. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 80%.
Thursday
Showers. High near 61. Chance of precipitation is 80%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 58. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 62. Chance of precipitation is 50%.
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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:
7:17 pm EDT May 2, 2026
Forecast Valid:
7pm EDT May 2, 2026-6pm EDT May 9, 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