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 53%
Wind Speed W 7 mph
Barometer 30.01 in (1015.5 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 21 Jun 6:54 pm EDT
Extended Forecast for

Brownstown PA

  • Tonight

    Tonight: Increasing clouds, with a low around 59. Calm wind.

    Low: 59 °F

    Increasing
    Clouds

  • Monday

    Monday: Showers and thunderstorms, mainly before noon, then showers likely and possibly a thunderstorm after 2pm. High near 76. Southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms before 4am, then a slight chance of showers after 5am. Patchy fog after midnight. Low around 58. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers then
    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 76. Northwest wind 3 to 8 mph.

    High: 76 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53. Northwest wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Increasing clouds, with a low around 59. Calm wind.
Monday
Showers and thunderstorms, mainly before noon, then showers likely and possibly a thunderstorm after 2pm. High near 76. Southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms before 4am, then a slight chance of showers after 5am. Patchy fog after midnight. Low around 58. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 76. Northwest wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 53. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
A chance of showers. Partly sunny, with a high near 83. 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:
2:20 pm EDT Jun 21, 2026
Forecast Valid:
7pm EDT Jun 21, 2026-6pm EDT Jun 28, 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