National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

41°F

5°C

Humidity 82%
Wind Speed W 9 mph
Barometer 29.89 in (1013.4 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 30 Apr 5:54 pm EDT
Extended Forecast for

2 Miles N Brownstown PA

Frost Advisory May 1, 12:00am until May 1, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 3am. Otherwise, mostly cloudy during the early evening, then gradual clearing, with a low around 35. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 35 °F

    Decreasing
    Clouds then
    Areas Frost

  • Friday

    Friday: Showers, with thunderstorms also possible after 5pm. Areas of frost before 8am. High near 57. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Areas Frost
    then Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 38. Light northwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 38 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 56. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 56 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 8pm. Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 33. Light northwest wind. Chance of precipitation is 30%.

    Low: 33 °F

    Chance
    Showers then
    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 58.

    High: 58 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 2pm. Partly sunny, with a high near 67. Chance of precipitation is 40%.

    High: 67 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
Areas of frost after 3am. Otherwise, mostly cloudy during the early evening, then gradual clearing, with a low around 35. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Friday
Showers, with thunderstorms also possible after 5pm. Areas of frost before 8am. High near 57. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 38. Light northwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 56. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
A chance of showers before 8pm. Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 33. Light northwest wind. Chance of precipitation is 30%.
Sunday
Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 41.
Monday
A chance of showers after 2pm. Partly sunny, with a high near 67. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Tuesday
A chance of showers after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Wednesday
Showers likely. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Thursday
Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Brownstown PA
 40.37°N 78.95°W (Elev. 1198 ft)
Last Update:
2:21 pm EDT Apr 30, 2026
Forecast Valid:
6pm EDT Apr 30, 2026-6pm EDT May 7, 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