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

63°F

17°C

Humidity 58%
Wind Speed SW 5 mph
Barometer 30.10 in (1018.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 24 Jun 11:54 pm EDT
Extended Forecast for

Brownstown PA

  • Overnight

    Overnight: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers after 2am. Low around 61. Light southwest wind. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 78. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm, then showers after 2am. Low around 63. Calm wind. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 63 °F

    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 11am. High near 79. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 56. Calm wind.
Thursday
Mostly sunny, with a high near 82. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers after 2am. Low around 61. Light southwest wind. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 78. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm, then showers after 2am. Low around 63. Calm wind. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Saturday
Showers, with thunderstorms also possible after 11am. High near 79. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny and hot, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93. Chance of precipitation is 30%.
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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 24, 2026
Forecast Valid:
12am EDT Jun 25, 2026-6pm EDT Jul 1, 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