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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

36°F

2°C

Humidity 100%
Wind Speed NW 15 mph
Barometer 29.72 in (1008.6 mb)
Dewpoint 36°F (2°C)
Visibility 0.15 mi
Wind Chill27°F (-3°C)
Last update 26 Dec 10:54 pm EST
Extended Forecast for

Westmont PA

Ice Storm Warning December 26, 11:23pm until December 27, 07:00am
Click here for hazard details and duration
Ice Storm Warning
  •  
    Ice Storm Warning December 26, 11:23pm until December 27, 07:00am

    NOW until 7:00am Sat

    Ice Storm Warning

  • Tonight

    Low: 33 °F

    Slight Chance
    Drizzle and
    Patchy Dense
    Fog

  • Saturday

    Saturday: Patchy dense fog before 8am. Otherwise, mostly cloudy, with a high near 37. Northwest wind around 6 mph becoming calm in the morning.

    High: 37 °F

    Patchy Dense
    Fog then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29. Calm wind becoming southeast around 5 mph after midnight.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers, mainly after 1pm. High near 54. Southeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers. Low around 44. South wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Showers

  • Monday

    Monday: Rain showers before 1pm, then a chance of rain and snow showers. High near 55. Breezy. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 55 °F

    Showers then
    Rain/Snow and
    Breezy

  • Monday Night

    Monday Night: Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 19. Breezy. Chance of precipitation is 60%.

    Low: 19 °F

    Snow Showers
    Likely and
    Breezy

  • Tuesday

    Tuesday: A chance of snow showers before 1pm. Mostly cloudy, with a high near 24. Breezy. Chance of precipitation is 30%.

    High: 24 °F

    Chance Snow
    Showers and
    Breezy

Detailed Forecast

Tonight
A slight chance of drizzle. Patchy dense fog. Otherwise, cloudy, with a low around 33. West wind around 7 mph.
Saturday
Patchy dense fog before 8am. Otherwise, mostly cloudy, with a high near 37. Northwest wind around 6 mph becoming calm in the morning.
Saturday Night
Mostly cloudy, with a low around 29. Calm wind becoming southeast around 5 mph after midnight.
Sunday
Showers, mainly after 1pm. High near 54. Southeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. Low around 44. South wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain showers before 1pm, then a chance of rain and snow showers. High near 55. Breezy. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday Night
Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 19. Breezy. Chance of precipitation is 60%.
Tuesday
A chance of snow showers before 1pm. Mostly cloudy, with a high near 24. Breezy. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 19.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.
New Year's Day
Mostly cloudy, with a high near 22.
Thursday Night
Partly cloudy, with a low around 9.
Friday
Mostly sunny, with a high near 20.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont PA
 40.32°N 78.96°W (Elev. 1729 ft)
Last Update:
8:06 pm EST Dec 26, 2025
Forecast Valid:
11pm EST Dec 26, 2025-6pm EST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation