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.

Light Snow Fog/Mist

29°F

-2°C

Humidity 92%
Wind Speed NW 13 mph
Barometer 30.00 in (1018.3 mb)
Dewpoint 27°F (-3°C)
Visibility 5.00 mi
Wind Chill19°F (-7°C)
Last update 7 Dec 8:54 pm EST
Extended Forecast for

Twin Rocks PA

  • Tonight

    Tonight: Occasional flurries before midnight. Cloudy, with a low around 14. North wind around 6 mph.

    Low: 14 °F

    Flurries then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 23. Northeast wind around 6 mph.

    High: 23 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 11. Calm wind becoming south around 6 mph after midnight.

    Low: 11 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow after 4pm. Mostly cloudy, with a high near 34. South wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 34 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A slight chance of snow before 7pm, then a chance of rain and snow after 1am. Mostly cloudy, with a low around 31. Southwest wind 10 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow, mainly after 7am. High near 40. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow before 1am, then a chance of snow showers after 1am. Low around 26. Chance of precipitation is 80%.

    Low: 26 °F

    Snow

  • Thursday

    Thursday: A chance of snow showers. Mostly cloudy, with a high near 30. Chance of precipitation is 40%.

    High: 30 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Snow showers likely. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.

    Low: 19 °F

    Snow Showers
    Likely

Detailed Forecast

Tonight
Occasional flurries before midnight. Cloudy, with a low around 14. North wind around 6 mph.
Monday
Partly sunny, with a high near 23. Northeast wind around 6 mph.
Monday Night
Partly cloudy, with a low around 11. Calm wind becoming south around 6 mph after midnight.
Tuesday
A slight chance of snow after 4pm. Mostly cloudy, with a high near 34. South wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of snow before 7pm, then a chance of rain and snow after 1am. Mostly cloudy, with a low around 31. Southwest wind 10 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain and snow, mainly after 7am. High near 40. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow before 1am, then a chance of snow showers after 1am. Low around 26. Chance of precipitation is 80%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 30. Chance of precipitation is 40%.
Thursday Night
Snow showers likely. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.
Friday
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 50%.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 13. Chance of precipitation is 50%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 20. Chance of precipitation is 50%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 11. Chance of precipitation is 40%.
Sunday
Mostly cloudy, with a high near 18.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Twin Rocks PA
 40.51°N 78.87°W (Elev. 1831 ft)
Last Update:
8:06 pm EST Dec 7, 2025
Forecast Valid:
9pm EST Dec 7, 2025-6pm EST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation