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.

Overcast

42°F

6°C

Humidity 85%
Wind Speed NW 12 mph
Barometer 29.99 in (1016.8 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 15 May 6:54 am EDT
Extended Forecast for

Jerome PA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 63. Northwest wind 6 to 9 mph.

    High: 63 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 46. Calm wind.

    Low: 46 °F

    Gradual
    Clearing

  • Saturday

    Saturday: Mostly sunny, with a high near 78. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. West wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. West wind 3 to 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 63. Northwest wind 6 to 9 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 46. Calm wind.
Saturday
Mostly sunny, with a high near 78. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. West wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. West wind 3 to 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 59.
Monday
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 79. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Jerome PA
 40.21°N 78.97°W (Elev. 1883 ft)
Last Update:
2:39 am EDT May 15, 2026
Forecast Valid:
7am EDT May 15, 2026-6pm EDT May 21, 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