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.

Fair

49°F

9°C

Humidity 77%
Wind Speed S 6 mph
Barometer 29.65 in (1004.2 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 11 Nov 11:54 pm EST
Extended Forecast for

Johnstown PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers. Patchy fog between 10am and 11am. High near 50. Calm wind becoming northwest 5 to 8 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: A chance of rain showers before midnight, then a chance of rain and snow showers between midnight and 5am, then a slight chance of rain showers after 5am. Cloudy, with a low around 31. Northwest wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Friday

    Friday: A chance of snow showers, mainly after 7am. Mostly cloudy, with a high near 40. Northwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 40 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A slight chance of snow showers after 1am. Mostly cloudy, with a low around 27. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of snow showers before 1pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 41. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 41 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A chance of rain and snow showers before 10pm, then a chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Sunday

    Sunday: A chance of rain and snow showers before 1pm, then a chance of rain showers. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.

    High: 42 °F

    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 44. Calm wind.
Thursday
Showers. Patchy fog between 10am and 11am. High near 50. Calm wind becoming northwest 5 to 8 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A chance of rain showers before midnight, then a chance of rain and snow showers between midnight and 5am, then a slight chance of rain showers after 5am. Cloudy, with a low around 31. Northwest wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday
A chance of snow showers, mainly after 7am. Mostly cloudy, with a high near 40. Northwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Friday Night
A slight chance of snow showers after 1am. Mostly cloudy, with a low around 27. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.
Saturday
A chance of snow showers before 1pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 41. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday Night
A chance of rain and snow showers before 10pm, then a chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Sunday
A chance of rain and snow showers before 1pm, then a chance of rain showers. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 44.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 26.
Wednesday
Sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown PA
 40.32°N 78.93°W (Elev. 1670 ft)
Last Update:
11:14 pm EST Nov 11, 2026
Forecast Valid:
12am EST Nov 12, 2026-6pm EST Nov 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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