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

35°F

2°C

Humidity 93%
Wind Speed SW 17 G 25 mph
Barometer 29.34 in (995.0 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 10 Dec 3:54 pm EST
Extended Forecast for

Cassandra PA

Winter Weather Advisory December 10, 04:57pm until December 11, 10:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 10, 04:57pm until December 11, 10:00am

    NOW until 10:00am Thu

    Winter Weather Advisory

  • This Afternoon

    High: 38 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: Rain and snow likely before midnight, then a slight chance of snow after 3am. Cloudy, with a low around 20. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Blustery.
    Rain/Snow
    Likely then
    Slight Chance
    Snow

  • Thursday

    Thursday: Mostly cloudy, with a high near 22. Breezy, with a west wind 18 to 21 mph, with gusts as high as 46 mph.

    High: 22 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 18. West wind 13 to 18 mph, with gusts as high as 36 mph.

    Low: 18 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of snow. Mostly cloudy, with a high near 26. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 26 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 18. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Chance Snow

  • Saturday

    Saturday: A chance of snow. Mostly cloudy, with a high near 26. Chance of precipitation is 40%.

    High: 26 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Snow likely, mainly before 1am. Cloudy, with a low around 12. Chance of precipitation is 60%.

    Low: 12 °F

    Snow Likely

Detailed Forecast

This Afternoon
A chance of rain and snow, mainly after 5pm. Cloudy, with a high near 38. Southwest wind around 16 mph, with gusts as high as 34 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain and snow likely before midnight, then a slight chance of snow after 3am. Cloudy, with a low around 20. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
Mostly cloudy, with a high near 22. Breezy, with a west wind 18 to 21 mph, with gusts as high as 46 mph.
Thursday Night
Mostly cloudy, with a low around 18. West wind 13 to 18 mph, with gusts as high as 36 mph.
Friday
A slight chance of snow. Mostly cloudy, with a high near 26. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 18. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow. Mostly cloudy, with a high near 26. Chance of precipitation is 40%.
Saturday Night
Snow likely, mainly before 1am. Cloudy, with a low around 12. Chance of precipitation is 60%.
Sunday
A chance of snow before 1pm. Mostly cloudy, with a high near 16. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
Mostly cloudy, with a high near 19.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
A chance of rain. Mostly cloudy, with a high near 35.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cassandra PA
 40.4°N 78.62°W (Elev. 2211 ft)
Last Update:
3:06 pm EST Dec 10, 2025
Forecast Valid:
4pm EST Dec 10, 2025-6pm EST Dec 17, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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