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Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Mostly Cloudy

68°F

20°C

Humidity 59%
Wind Speed S 6 mph
Barometer 29.78 in (1007.4 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 17 Jun 9:54 pm EDT
Extended Forecast for

Portage PA

Wind Advisory June 18, 07:00am until June 18, 06:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 64. South wind 6 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 77. Breezy, with a west wind 18 to 22 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Breezy.
    Showers
    Likely then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. West wind 9 to 15 mph, with gusts as high as 33 mph.

    Low: 57 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 70. West wind 11 to 16 mph, with gusts as high as 30 mph.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55. West wind 9 to 14 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers after 2pm. Mostly sunny, with a high near 73. Chance of precipitation is 30%.

    High: 73 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 64. South wind 6 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 77. Breezy, with a west wind 18 to 22 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, with a low around 57. West wind 9 to 15 mph, with gusts as high as 33 mph.
Juneteenth
Mostly sunny, with a high near 70. West wind 11 to 16 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 55. West wind 9 to 14 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
A chance of showers after 2pm. Mostly sunny, with a high near 73. Chance of precipitation is 30%.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Monday
Showers, mainly before 2pm. High near 71. Chance of precipitation is 80%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portage PA
 40.38°N 78.66°W (Elev. 2096 ft)
Last Update:
9:26 pm EDT Jun 17, 2026
Forecast Valid:
10pm EDT Jun 17, 2026-6pm EDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation