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

52°F

11°C

Humidity 86%
Wind Speed NW 9 mph
Barometer 30.18 in (1022.2 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 15 Oct 12:54 am EDT
Extended Forecast for

Johnstown PA

  • Overnight

    Overnight: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 63. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 63 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Areas of frost after 5am. Otherwise, clear, with a low around 35. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Thursday

    Thursday: Areas of frost before 10am. Otherwise, sunny, with a high near 59. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 59 °F

    Areas Frost
    then Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 4am. Otherwise, clear, with a low around 29. Northwest wind around 6 mph becoming calm in the evening.

    Low: 29 °F

    Clear then
    Frost

  • Friday

    Friday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.

    Low: 50 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 46. Calm wind.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 63. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
Areas of frost after 5am. Otherwise, clear, with a low around 35. Northwest wind 5 to 7 mph becoming calm after midnight.
Thursday
Areas of frost before 10am. Otherwise, sunny, with a high near 59. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Widespread frost, mainly after 4am. Otherwise, clear, with a low around 29. Northwest wind around 6 mph becoming calm in the evening.
Friday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
A chance of showers after 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Monday
A chance of showers. Partly sunny, with a high near 58. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 61.
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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:
1:06 am EDT Oct 15, 2025
Forecast Valid:
1am EDT Oct 15, 2025-6pm EDT Oct 21, 2025
 
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