Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Rain Fog/Mist

66°F

19°C

Humidity 96%
Wind Speed NW 15 G 22 mph
Barometer 30.01 in (1015.2 mb)
Dewpoint 65°F (18°C)
Visibility 1.25 mi
Last update 20 Aug 12:54 pm EDT
Extended Forecast for

3 Miles N Summerhill PA

Flood Watch August 20, 01:32pm until August 20, 04:00pm
Flash Flood Warning until August 20, 03:45pm
Click here for hazard details and duration
Flood Watch
Flash Flood Warning
  •  
    Flood Watch August 20, 01:32pm until August 20, 04:00pm
    Flash Flood Warning until August 20, 03:45pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 68 °F

    Rain

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. Northeast wind 3 to 5 mph.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73. East wind around 6 mph.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am.  Increasing clouds, with a low around 61. Southeast wind 3 to 5 mph.  Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 75. Light and variable wind becoming southwest around 6 mph in the morning.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 60. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers after 8am.  Partly sunny, with a high near 70. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers

  • Sunday Night

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

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Rain and possibly a thunderstorm, mainly before 5pm, then a chance of rain and thunderstorms after 5pm. High near 68. East wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Mostly cloudy, with a low around 57. Northeast wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 73. East wind around 6 mph.
Friday Night
A chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Increasing clouds, with a low around 61. Southeast wind 3 to 5 mph. Chance of precipitation is 40%.
Saturday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 75. Light and variable wind becoming southwest around 6 mph in the morning. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers after 8am. Partly sunny, with a high near 70. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 75.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Summerhill PA
 40.42°N 78.77°W (Elev. 2182 ft)
12:26 pm EDT Aug 20, 2026
1pm EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database