Johnstown Cambria County Airport (JST) Weather 03/31/2025

This Afternoon

Scattered showers before 3pm, then showers and possibly a thunderstorm between 3pm and 4pm, then scattered showers and thunderstorms after 4pm. Some of the storms could be severe. High near 59. West wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Scattered showers before 9pm. Cloudy, with a low around 29. Northwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

Mostly cloudy through mid morning, then gradual clearing, with a high near 45. Northwest wind around 14 mph, with gusts as high as 22 mph.

Tuesday Night

Increasing clouds, with a low around 33. North wind 5 to 10 mph becoming southeast after midnight.

Wednesday

A chance of rain after 2pm. Mostly cloudy, with a high near 56. Breezy, with a southeast wind 15 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night

A chance of rain before 8pm, then a chance of rain after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Thursday

Periods of rain, mainly after 8am. High near 69. Chance of precipitation is 90%.

Thursday Night

Periods of rain. Low around 53. Chance of precipitation is 90%.

Friday

Rain likely, mainly before 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

Friday Night

Rain, mainly after 2am. Low around 49. Chance of precipitation is 80%.

Saturday

Rain. High near 60. Chance of precipitation is 90%.

Saturday Night

Rain likely. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.

Sunday

Rain likely. Mostly cloudy, with a high near 58. Chance of precipitation is 70%.