Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

70°F

21°C

Humidity 90%
Wind Speed NE 9 mph
Barometer 29.97 in (1013.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 17 Jun 3:54 pm EDT
Extended Forecast for

3 Miles N Summerhill PA

Flood Watch June 17, 04:57pm until June 17, 10:00pm
Flash Flood Warning until June 17, 05:45pm
Click here for hazard details and duration
Flood Watch
Flash Flood Warning
  •  
    Flood Watch June 17, 04:57pm until June 17, 10:00pm
    Flash Flood Warning until June 17, 05:45pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 74 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 10pm, then showers likely and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 66. South wind around 6 mph.  Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    Low: 66 °F

    Heavy Rain
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm.  High near 76. Southwest wind 6 to 8 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly after 2am.  Partly cloudy, with a low around 68. Southwest wind 7 to 9 mph, with gusts as high as 22 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm.  High near 75. Southwest wind 13 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    T-storms then
    Showers

  • Thursday Night

    Thursday Night: Showers before 8pm.  Low around 57. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 74. Southwest wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely, mainly before 10pm, then showers likely and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 66. South wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 76. Southwest wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 68. Southwest wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 75. Southwest wind 13 to 15 mph, with gusts as high as 30 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 before 8pm. Low around 57. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Summerhill PA
 40.42°N 78.77°W (Elev. 2182 ft)
4:47 pm EDT Jun 17, 2025
4pm EDT Jun 17, 2025-6pm EDT Jun 24, 2025
 
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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