Johnstown Cambria County Airport (JST) Weather 06/29/2025
Today
82
Decreasing Clouds
Tonight
67
Partly Cloudy
Monday
81
Showers Likely then T-storms
Monday Night
70
T-storms then Showers
Tuesday
77
Showers
Tuesday Night
63
Showers Likely then Partly Cloudy
Wednesday
79
Sunny
Wednesday Night
62
Mostly Clear
Thursday
79
Sunny
Thursday Night
61
Mostly Clear
Independence Day
80
Sunny
Friday Night
63
Mostly Clear
Saturday
84
Mostly Sunny
Weekly Forecast
Today
Mostly cloudy, then gradually becoming sunny, with a high near 82. West wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 67. Calm wind.
Monday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 81. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm. Low around 70. South wind 7 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers, with thunderstorms also possible after 11am. High near 77. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 61.
Independence Day
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 84.