


Current conditions at
Johnstown - Cambria County Airport (KJST)
Lat: 40.31°NLon: 78.83°WElev: 2274ft.
Mostly Cloudy
73°F
23°C
Humidity | 87% |
Wind Speed | W 9 mph |
Barometer | 30.01 in (1014.8 mb) |
Dewpoint | 69°F (21°C) |
Visibility | 10.00 mi |
Last update | 17 Aug 5:54 pm EDT |
Extended Forecast for
Portage PA
Tonight
Low: 59 °F
Chance
T-storms then
Slight Chance
ShowersMonday
High: 76 °F
Mostly Sunny
Monday Night
Low: 60 °F
Chance
ShowersTuesday
High: 72 °F
Chance
ShowersTuesday Night
Low: 62 °F
Chance
ShowersWednesday
High: 77 °F
Chance
ShowersWednesday Night
Low: 62 °F
Chance
ShowersThursday
High: 78 °F
Chance
ShowersThursday Night
Low: 59 °F
Mostly Clear
Detailed Forecast
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 59. Northwest wind 5 to 8 mph becoming northeast after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 76. East wind around 6 mph.
Monday Night
A chance of showers. Mostly cloudy, with a low around 60. Southeast wind around 6 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 72. Southeast wind 6 to 8 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 62. Southeast wind around 7 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Thursday
A chance of showers after 8am. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 61.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Portage PA
40.39°N 78.68°W (Elev. 1621 ft)
40.39°N 78.68°W (Elev. 1621 ft)
2:19 pm EDT Aug 17, 2025
6pm EDT Aug 17, 2025-6pm EDT Aug 24, 2025