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Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Light Rain Fog/Mist

70°F

21°C

Humidity 90%
Wind Speed Calm
Barometer 29.99 in (1014.4 mb)
Dewpoint 67°F (19°C)
Visibility 5.00 mi
Last update 20 Aug 2:54 pm EDT
Extended Forecast for

2 Miles SSW Twin Rocks PA

  • This Afternoon

    This Afternoon: A chance of showers, mainly after 5pm. Cloudy, with a high near 75. South wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers between 2am and 5am. Cloudy, with a low around 64. Light east wind. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly between 11am and 3pm. Mostly cloudy, with a high near 74. East wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 60. East wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. Calm wind.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.

    High: 77 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

This Afternoon
A chance of showers, mainly after 5pm. Cloudy, with a high near 75. South wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of showers between 2am and 5am. Cloudy, with a low around 64. Light east wind. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A chance of showers, mainly between 11am and 3pm. Mostly cloudy, with a high near 74. East wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 60. East wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 80. Calm wind.
Friday Night
Mostly clear, with a low around 61.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Twin Rocks PA
 40.51°N 78.87°W (Elev. 1831 ft)
Last Update:
2:08 pm EDT Aug 20, 2025
Forecast Valid:
3pm EDT Aug 20, 2025-6pm EDT Aug 27, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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