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

59°F

15°C

Humidity 93%
Wind Speed NE 5 mph
Barometer 30.12 in (1019.2 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 14 Oct 11:54 pm EDT
Extended Forecast for

Brownstown PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 65. East wind 3 to 7 mph.

    High: 65 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of rain, then a chance of rain and thunderstorms after 11pm. Mostly cloudy, with a low around 56. Southeast wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Chance Rain

  • Friday

    Friday: Rain and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 76. Southwest wind 9 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Slight Chance
    Rain then
    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms before 11pm, then showers likely. Low around 38. West wind 11 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 38 °F

    Showers

  • Saturday

    Saturday: A chance of showers before 8am. Mostly sunny, with a high near 49. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 2am. Otherwise, clear, with a low around 31.

    Low: 31 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 52. Light and variable wind.
Thursday
Mostly cloudy, with a high near 65. East wind 3 to 7 mph.
Thursday Night
A slight chance of rain, then a chance of rain and thunderstorms after 11pm. Mostly cloudy, with a low around 56. Southeast wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Rain and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 76. Southwest wind 9 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms before 11pm, then showers likely. Low around 38. West wind 11 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers before 8am. Mostly sunny, with a high near 49. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Widespread frost, mainly after 2am. Otherwise, clear, with a low around 31.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Brownstown PA
 40.34°N 78.92°W (Elev. 1388 ft)
Last Update:
12:42 am EDT Oct 15, 2026
Forecast Valid:
12am EDT Oct 15, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation