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

54°F

12°C

Humidity 72%
Wind Speed E 6 mph
Barometer 30.25 in (1025.0 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 3 Oct 7:54 pm EDT
Extended Forecast for

Brownstown PA

  • Tonight

    Tonight: Increasing clouds, with a low around 52. Calm wind becoming southeast around 5 mph after midnight.

    Low: 52 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A slight chance of light rain before 11am. Mostly cloudy, with a high near 65. Southeast wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 65 °F

    Slight Chance
    Light Rain
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Patchy Fog

  • Monday

    Monday: Mostly sunny, with a high near 63. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy fog before 8am. Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Patchy Frost
    and Patchy
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 52. Calm wind becoming southeast around 5 mph after midnight.
Sunday
A slight chance of light rain before 11am. Mostly cloudy, with a high near 65. Southeast wind 5 to 7 mph. Chance of precipitation is 20%.
Sunday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 48. Calm wind.
Monday
Mostly sunny, with a high near 63. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Monday Night
Mostly clear, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 8am. Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 62.
Tuesday Night
Clear, with a low around 41.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brownstown PA
 40.34°N 78.92°W (Elev. 1388 ft)
Last Update:
8:06 pm EDT Oct 3, 2026
Forecast Valid:
8pm EDT Oct 3, 2026-6pm EDT Oct 10, 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