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.

Snow Freezing Fog

23°F

-5°C

Humidity 92%
Wind Speed W 17 G 35 mph
Barometer 29.95 in (1017.1 mb)
Dewpoint 21°F (-6°C)
Visibility 0.25 mi
Wind Chill9°F (-13°C)
Last update 11 Jan 3:54 pm EST
Extended Forecast for

3 Miles ESE Twin Rocks PA

Wind Advisory January 11, 04:45pm until January 12, 01:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory January 11, 04:45pm until January 12, 01:00am

    NOW until 1:00am Mon

    Wind Advisory

  • This Afternoon

    High: 30 °F

    Snow Showers
    and Breezy

  • Tonight

    Tonight: Snow showers, mainly before 8pm. Low around 23. Breezy, with a west wind 16 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Snow Showers
    and Breezy
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 33. West wind 14 to 16 mph, with gusts as high as 32 mph.

    High: 33 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. West wind around 14 mph, with gusts as high as 28 mph.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 41. Southwest wind around 10 mph, with gusts as high as 22 mph.

    High: 41 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely before 1pm, then rain after 1pm. High near 38. Chance of precipitation is 90%.

    High: 38 °F

    Showers
    Likely then
    Rain

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after 1am. Low around 22. Chance of precipitation is 80%.

    Low: 22 °F

    Rain/Snow

Detailed Forecast

This Afternoon
Snow showers. High near 30. Breezy, with a west wind around 20 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Snow showers, mainly before 8pm. Low around 23. Breezy, with a west wind 16 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 33. West wind 14 to 16 mph, with gusts as high as 32 mph.
Monday Night
Mostly clear, with a low around 27. West wind around 14 mph, with gusts as high as 28 mph.
Tuesday
Partly sunny, with a high near 41. Southwest wind around 10 mph, with gusts as high as 22 mph.
Tuesday Night
A chance of showers, mainly after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely before 1pm, then rain after 1pm. High near 38. Chance of precipitation is 90%.
Wednesday Night
Rain and snow, becoming all snow after 1am. Low around 22. Chance of precipitation is 80%.
Thursday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 26. Chance of precipitation is 60%.
Thursday Night
A chance of snow before 1am. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 24.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 29. Chance of precipitation is 50%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 17. Chance of precipitation is 40%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Twin Rocks PA
 40.51°N 78.81°W (Elev. 2221 ft)
Last Update:
3:41 pm EST Jan 11, 2026
Forecast Valid:
4pm EST Jan 11, 2026-6pm EST Jan 18, 2026
 
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