Johnstown Cambria County Airport (JST) Weather 12/15/2025
This Afternoon
31
Cloudy
Tonight
28
Mostly Cloudy then Slight Chance Snow
Wednesday
37
Rain/Snow
Wednesday Night
19
Snow Showers Likely
Thursday
23
Slight Chance Snow Showers
Thursday Night
19
Mostly Cloudy then Slight Chance Snow Showers
Friday
26
Chance Snow
Friday Night
20
Snow Likely
Saturday
29
Chance Snow
Saturday Night
16
Snow Likely
Sunday
21
Chance Snow
Sunday Night
7
Mostly Cloudy
Monday
19
Mostly Cloudy
Weekly Forecast
This Afternoon
Cloudy, with a high near 31. South wind 11 to 13 mph, with gusts as high as 22 mph.
Tonight
A slight chance of snow after 3am. Cloudy, then gradually becoming partly cloudy, with a low around 28. Southwest wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Wednesday
Rain and snow, becoming all snow after 3pm. High near 37. Southwest wind 14 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers likely, mainly before 1am. Cloudy, with a low around 19. West wind around 17 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
A slight chance of snow showers before 1pm. Mostly cloudy, with a high near 23. West wind around 18 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of snow showers after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 20%.
Friday
A chance of snow. Mostly cloudy, with a high near 26. Chance of precipitation is 40%.
Friday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.
Saturday
A chance of snow. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.
Saturday Night
Snow likely, mainly after 1am. Cloudy, with a low around 16. Chance of precipitation is 60%.
Sunday
A chance of snow. Mostly cloudy, with a high near 21. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 7.
Monday
Mostly cloudy, with a high near 19.