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.

Overcast

36°F

2°C

Humidity 89%
Wind Speed N 8 mph
Barometer 29.93 in (1014.5 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 2 May 1:54 am EDT
Extended Forecast for

Johnstown PA

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

    NOW until 9:00am Sat

    Freeze Warning

  • Overnight

    Low: 34 °F

    Areas Frost

  • Saturday

    Saturday: Areas of frost between 7am and 9am. Otherwise, partly sunny, with a high near 52. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 52 °F

    Areas Frost
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 2am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 30. Northwest wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Partly Cloudy
    then Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am. 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 42. Southwest wind 3 to 5 mph.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers after 2pm. Mostly sunny, with a high near 67. Chance of precipitation is 20%.

    High: 67 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers after 2pm. Partly sunny, with a high near 74. Chance of precipitation is 40%.

    High: 74 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Overnight
Areas of frost between 4am and 5am. Otherwise, mostly cloudy, with a low around 34. Light northwest wind.
Saturday
Areas of frost between 7am and 9am. Otherwise, partly sunny, with a high near 52. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Saturday Night
Widespread frost, mainly after 2am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 30. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Widespread frost, mainly before 8am. 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 42. Southwest wind 3 to 5 mph.
Monday
A slight chance of showers after 2pm. Mostly sunny, with a high near 67. Chance of precipitation is 20%.
Monday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Tuesday
A chance of showers after 2pm. 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 56. Chance of precipitation is 70%.
Wednesday
Showers. High near 65. Chance of precipitation is 80%.
Wednesday Night
Showers. Low around 51. Chance of precipitation is 80%.
Thursday
Showers. High near 60. 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 56. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnstown PA
 40.32°N 78.93°W (Elev. 1670 ft)
Last Update:
2:49 am EDT May 2, 2026
Forecast Valid:
2am EDT May 2, 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