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

58°F

14°C

Humidity 65%
Wind Speed S 6 mph
Barometer 29.81 in (1008.6 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 17 Jun 1:54 am EDT
Extended Forecast for

Brownstown PA

  • Overnight

    Overnight: Scattered showers after 3am. Mostly cloudy, with a low around 54. South wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 54 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Southwest wind 5 to 11 mph, with gusts as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 63. South wind 5 to 7 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 2pm, then a slight chance of showers and thunderstorms after 2pm. High near 81. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 58. West wind 9 to 14 mph becoming light after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    Showers

  • Juneteenth

    Juneteenth: A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers

  • Friday Night

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

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Scattered showers after 3am. Mostly cloudy, with a low around 54. South wind 3 to 5 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 78. Southwest wind 5 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 63. South wind 5 to 7 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm before 2pm, then a slight chance of showers and thunderstorms after 2pm. High near 81. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 58. West wind 9 to 14 mph becoming light after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Juneteenth
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 55.
Sunday
A chance of showers after 2pm. Mostly sunny, with a high near 76. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly sunny, with a high near 78. 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:
2:06 am EDT Jun 17, 2026
Forecast Valid:
2am EDT Jun 17, 2026-6pm EDT Jun 23, 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