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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

50°F

10°C

Humidity 96%
Wind Speed W 7 mph
Barometer 30.14 in (1021.9 mb)
Dewpoint 49°F (9°C)
Visibility 0.25 mi
Wind Chill47°F (8°C)
Last update 4 Mar 12:54 am EST
Extended Forecast for

Johnstown-Cambria County Airport PA

Dense Fog Advisory March 4, 01:08am until March 4, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 4, 01:08am until March 4, 09:00am

    NOW until 9:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 44 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: Showers likely, mainly after 3pm. Areas of fog before 8am. Otherwise, cloudy, with a high near 51. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Chance
    Showers and
    Areas Fog
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 46. Southeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 1pm. High near 62. Southwest wind 7 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 52. Southwest wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 69. Chance of precipitation is 80%.

    High: 69 °F

    Chance
    Showers then
    Showers

Detailed Forecast

Overnight
A chance of rain, mainly before 3am. Patchy fog. Otherwise, cloudy, with a low around 44. West wind 3 to 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely, mainly after 3pm. Areas of fog before 8am. Otherwise, cloudy, with a high near 51. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 46. Southeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers, with thunderstorms also possible after 1pm. High near 62. Southwest wind 7 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm. Low around 52. Southwest wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 54.
Saturday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 69. Chance of precipitation is 80%.
Saturday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 45.
Monday
A chance of showers. Mostly sunny, with a high near 61. Chance of precipitation is 30%.
Monday Night
A chance of showers. Partly cloudy, with a low around 46. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown-Cambria County Airport PA
 40.31°N 78.84°W (Elev. 2221 ft)
Last Update:
12:32 am EST Mar 4, 2026
Forecast Valid:
1am EST Mar 4, 2026-6pm EDT Mar 10, 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