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.

Fair

48°F

9°C

Humidity 54%
Wind Speed Vrbl 5 mph
Barometer 29.90 in (1013.4 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 1 May 10:54 am EDT
Extended Forecast for

Johnstown PA

  • Today

    Today: Rain, with thunderstorms also possible after 5pm. High near 58. Southwest wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Rain

  • Tonight

    Tonight: Rain likely and possibly a thunderstorm before 9pm, then a slight chance of rain between 9pm and 10pm. Mostly cloudy, with a low around 36. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 36 °F

    Rain Likely
    then Mostly
    Cloudy

  • Saturday

    Saturday: Scattered showers after noon. Partly sunny, with a high near 53. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 53 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 32. Northwest wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Mostly 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: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 40%.

    High: 72 °F

    Chance
    Showers

Detailed Forecast

Today
Rain, with thunderstorms also possible after 5pm. High near 58. Southwest wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain likely and possibly a thunderstorm before 9pm, then a slight chance of rain between 9pm and 10pm. Mostly cloudy, with a low around 36. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Scattered showers after noon. Partly sunny, with a high near 53. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 32. 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
Partly cloudy, with a low around 41.
Monday
A chance of showers after 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Tuesday
A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 40%.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Wednesday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown PA
 40.32°N 78.93°W (Elev. 1670 ft)
Last Update:
8:06 am EDT May 1, 2026
Forecast Valid:
11am EDT May 1, 2026-6pm EDT May 7, 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