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.

Light Rain Fog/Mist

66°F

19°C

Humidity 100%
Wind Speed SW 9 mph
Barometer 29.80 in (1007.7 mb)
Dewpoint 66°F (19°C)
Visibility 4.00 mi
Last update 3 Aug 3:54 am EDT
Extended Forecast for

Jerome PA

  • Overnight

    Overnight: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Light southwest wind. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 76. Northwest wind 5 to 8 mph.

    High: 76 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Patchy fog after midnight. Otherwise, mostly clear, with a low around 55. Light north wind.

    Low: 55 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Areas Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62. Light southeast wind.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 82. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Chance
    T-storms then
    Showers

  • Thursday Night

    Thursday Night: Showers before 8pm. Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Light southwest wind. Chance of precipitation is 20%.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 76. Northwest wind 5 to 8 mph.
Monday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 55. Light north wind.
Tuesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 80. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 62. Light southeast wind.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 82. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Thursday
A chance of thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 82. Chance of precipitation is 80%.
Thursday Night
Showers before 8pm. Low around 66. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Jerome PA
 40.24°N 79°W (Elev. 1781 ft)
Last Update:
2:21 am EDT Aug 3, 2026
Forecast Valid:
4am EDT Aug 3, 2026-6pm EDT Aug 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