Hazardous Weather Conditions
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
NOW: Multiple hazards in effect

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This Afternoon

High: 68 °F
Rain
Tonight

Low: 57 °F
Mostly Cloudy
Friday

High: 73 °F
Mostly Sunny
Friday Night

Low: 61 °F
Chance
ShowersSaturday
High: 75 °F
Chance
Showers then
Showers
LikelySaturday Night

Low: 60 °F
Showers
LikelySunday

High: 70 °F
Chance
ShowersSunday Night

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles N Summerhill PA
40.42°N 78.77°W (Elev. 2182 ft)
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



