Johnstown Cambria County Airport (JST) Weather 09/24/2025
Tonight
53
Partly Cloudy
Saturday
76
Mostly Sunny
Saturday Night
57
Mostly Cloudy then Slight Chance Showers
Sunday
71
Partly Sunny
Sunday Night
59
Mostly Cloudy then Slight Chance Showers
Monday
75
Partly Sunny then Chance Showers
Monday Night
61
Showers Likely
Tuesday
73
Showers Likely
Tuesday Night
59
Showers Likely
Wednesday
71
Chance Showers
Wednesday Night
52
Chance Showers
Thursday
69
Mostly Sunny
Thursday Night
53
Partly Cloudy then Chance Showers
Weekly Forecast
Tonight
Partly cloudy, with a low around 53. Northwest wind 5 to 8 mph becoming east after midnight.
Saturday
Mostly sunny, with a high near 76. Southeast wind 7 to 9 mph.
Saturday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 57. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 71. Southeast wind around 11 mph, with gusts as high as 20 mph.
Sunday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 59. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday
A slight chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers after 5pm. Partly sunny, with a high near 75. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.