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

41°F

5°C

Humidity 96%
Wind Speed S 7 mph
Barometer 29.86 in (1012.7 mb)
Dewpoint 40°F (4°C)
Visibility 7.00 mi
Wind Chill36°F (2°C)
Last update 28 Dec 12:54 pm EST
Extended Forecast for

Cassandra PA

Winter Weather Advisory December 29, 01:00pm until December 30, 01:00pm
High Wind Warning December 29, 04:00am until December 30, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory
High Wind Warning

  • This Afternoon

    This Afternoon: Rain likely, mainly before 2pm. Cloudy, with a high near 46. Southeast wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Rain Likely

  • Tonight

    Tonight: Rain, mainly after 3am. Temperature rising to around 53 by 4am. Southwest wind 8 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F⇑

    Slight Chance
    Rain then
    Rain

  • Monday

    Monday: Rain likely before 9am, then a chance of snow showers after 2pm. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 24 by 5pm. Windy, with a west wind 20 to 29 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 50 °F⇓

    Rain Likely
    and Breezy
    then Chance
    Snow Showers
    and Windy

  • Monday Night

    Monday Night: Snow showers likely, mainly between 7pm and 1am. Mostly cloudy, with a low around 18. Wind chill values as low as zero. Windy, with a west wind around 30 mph, with gusts as high as 60 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Snow Showers
    Likely and
    Windy

  • Tuesday

    Tuesday: A slight chance of snow showers before 1pm. Mostly cloudy, with a high near 23. Windy, with a west wind 21 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 20%.

    High: 23 °F

    Slight Chance
    Snow Showers
    and Windy

  • Tuesday Night

    Tuesday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.

    Low: 18 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: A chance of snow showers after 1pm. Mostly cloudy, with a high near 28. Chance of precipitation is 40%.

    High: 28 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 60%.

    Low: 15 °F

    Snow Showers
    Likely

  • New Year's Day

    New Year's Day: A chance of snow showers. Mostly cloudy, with a high near 23. Chance of precipitation is 40%.

    High: 23 °F

    Chance Snow
    Showers

Detailed Forecast

This Afternoon
Rain likely, mainly before 2pm. Cloudy, with a high near 46. Southeast wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly after 3am. Temperature rising to around 53 by 4am. Southwest wind 8 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely before 9am, then a chance of snow showers after 2pm. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 24 by 5pm. Windy, with a west wind 20 to 29 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
Snow showers likely, mainly between 7pm and 1am. Mostly cloudy, with a low around 18. Wind chill values as low as zero. Windy, with a west wind around 30 mph, with gusts as high as 60 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Tuesday
A slight chance of snow showers before 1pm. Mostly cloudy, with a high near 23. Windy, with a west wind 21 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Wednesday
A chance of snow showers after 1pm. Mostly cloudy, with a high near 28. Chance of precipitation is 40%.
Wednesday Night
Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 60%.
New Year's Day
A chance of snow showers. Mostly cloudy, with a high near 23. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 12.
Friday
Partly sunny, with a high near 25.
Friday Night
Mostly cloudy, with a low around 17.
Saturday
Mostly cloudy, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cassandra PA
 40.4°N 78.65°W (Elev. 1699 ft)
Last Update:
1:16 pm EST Dec 28, 2025
Forecast Valid:
1pm EST Dec 28, 2025-6pm EST Jan 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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