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.

Partly Cloudy

61°F

16°C

Humidity 60%
Wind Speed W 7 mph
Barometer 29.94 in (1013.0 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 19 Jun 9:54 pm EDT
Extended Forecast for

Brownstown PA

  • Tonight

    Tonight: Mostly clear, with a low around 54. Southwest wind 3 to 5 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 74. West wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly between 10pm and 11pm. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 55. Light southwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    Showers then
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming west 5 to 7 mph in the morning.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 59. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm before 8am, then showers between 8am and 11am, then showers and possibly a thunderstorm after 11am. High near 77. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 77 °F

    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then showers likely between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Southwest wind 3 to 5 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 74. West wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms, mainly between 10pm and 11pm. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 55. Light southwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming west 5 to 7 mph in the morning.
Sunday Night
A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 59. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm before 8am, then showers between 8am and 11am, then showers and possibly a thunderstorm after 11am. High near 77. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then showers likely between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Brownstown PA
 40.34°N 78.95°W (Elev. 1302 ft)
Last Update:
8:11 pm EDT Jun 19, 2026
Forecast Valid:
10pm EDT Jun 19, 2026-6pm EDT Jun 26, 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