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.

Fair

69°F

21°C

Humidity 57%
Wind Speed SW 6 mph
Barometer 30.18 in (1020.7 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 17 May 11:54 pm EDT
Extended Forecast for

Jerome PASimilar City Names

  • Overnight

    Overnight: Mostly clear, with a low around 61. Light south wind.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88. Southwest wind 3 to 8 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Light south wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. Southwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 64. Southwest wind 5 to 7 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 64 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 2pm. High near 77. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers between 8am and 2pm. Partly sunny, with a high near 65. Chance of precipitation is 30%.

    High: 65 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 61. Light south wind.
Monday
Sunny, with a high near 88. Southwest wind 3 to 8 mph.
Monday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Light south wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 87. Southwest wind 6 to 11 mph, with gusts as high as 22 mph.
Tuesday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 64. Southwest wind 5 to 7 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Wednesday
Showers, with thunderstorms also possible after 2pm. High near 77. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
A chance of showers between 8am and 2pm. Partly sunny, with a high near 65. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 48.
Friday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Friday Night
Showers. Low around 51. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm. High near 70. Chance of precipitation is 80%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Jerome PASimilar City Names
 40.21°N 78.97°W (Elev. 1883 ft)
Last Update:
2:05 am EDT May 18, 2026
Forecast Valid:
2am EDT May 18, 2026-6pm EDT May 24, 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