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

Heavy Rainfall in Florida; Critical Fire Weather in the Southeast; Heavy Rain and Flooding Concerns in Hawaii

Thunderstorms and periods of heavy to excessive rainfall will continue over Florida through Thursday; and will begin to impact the central Plains today. Dry and gusty conditions will promote elevated to critical fire weather conditions in the Southeast. A Kona Low is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the island chain through the weekend. Read More >

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fair

49°F

9°C

Humidity 25%
Wind Speed SE 10 mph
Barometer 30.39 in (1031.2 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 8 Apr 4:54 pm EDT
Extended Forecast for

Johnstown PA

  • Tonight

    Tonight: Mostly clear, with a low around 34. South wind 6 to 9 mph.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 67. South wind 5 to 7 mph.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. South wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers after 2pm. Mostly sunny, with a high near 73. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 73 °F

    Sunny then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 43. West wind 3 to 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 34. South wind 6 to 9 mph.
Thursday
Mostly sunny, with a high near 67. South wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 46. South wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers after 2pm. Mostly sunny, with a high near 73. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 43. West wind 3 to 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Mostly cloudy, with a low around 58.
Monday
Mostly cloudy, with a high near 77.
Monday Night
Mostly cloudy, with a low around 62.
Tuesday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnstown PA
 40.32°N 78.93°W (Elev. 1670 ft)
Last Update:
3:47 pm EDT Apr 8, 2026
Forecast Valid:
5pm EDT Apr 8, 2026-6pm EDT Apr 15, 2026
 
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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