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.

A Few Clouds

69°F

21°C

Humidity 70%
Wind Speed S 6 mph
Barometer 30.03 in (1016.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 26 Aug 7:54 pm EDT
Extended Forecast for

Summerhill PA

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 80. Southwest wind 3 to 8 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

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Areas of dense fog after 10pm. Otherwise, mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Areas Dense
    Fog

  • Friday

    Friday: Areas of fog before 10am. Otherwise, partly sunny, with a high near 78. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 78 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Areas of fog after 1am. Otherwise, mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear
    then Areas
    Fog

  • Saturday

    Saturday: Areas of fog before 8am. Otherwise, sunny, with a high near 79.

    High: 79 °F

    Areas Fog
    then Sunny

  • Saturday Night

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

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. Calm wind.
Thursday
A chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 80. Southwest wind 3 to 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Areas of dense fog after 10pm. Otherwise, mostly cloudy, with a low around 60. Calm wind.
Friday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 78. Calm wind becoming northwest around 6 mph in the afternoon.
Friday Night
Areas of fog after 1am. Otherwise, mostly clear, with a low around 56. Calm wind.
Saturday
Areas of fog before 8am. Otherwise, sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
A chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summerhill PA
 40.37°N 78.77°W (Elev. 1542 ft)
Last Update:
8:11 pm EDT Aug 26, 2026
Forecast Valid:
8pm EDT Aug 26, 2026-6pm EDT Sep 2, 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