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 81%
Wind Speed Calm
Barometer 30.21 in (1021.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 15 Aug 8:54 am EDT
Extended Forecast for

4 Miles ESE Seward PA

  • Today

    Today: Mostly sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 66. Southeast wind 3 to 6 mph.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. South wind 3 to 5 mph. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. South wind 3 to 6 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Southwest wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 64. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Monday Night

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

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 40%.

    High: 76 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 83. Light and variable wind.
Tonight
Partly cloudy, with a low around 66. Southeast wind 3 to 6 mph.
Saturday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. South wind 3 to 5 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 66. South wind 3 to 6 mph.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Southwest wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 64. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Seward PA
 40.41°N 78.94°W (Elev. 2497 ft)
Last Update:
6:59 am EDT Aug 15, 2025
Forecast Valid:
9am EDT Aug 15, 2025-6pm EDT Aug 21, 2025
 
Forecast Discussion
 
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Additional Resources

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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