Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

Lat: 48.74111°NLon: 113.43306°WElev: 4550.0ft.

72°F

22°C

Humidity	32%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	41°F (5°C)
Visibility	NA
Last update	12 Jul 10:10 PM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

St Mary MT

Tonight
Low: 56 °F
Mostly Clear
Sunday
High: 84 °F
Mostly Sunny
Sunday Night
Low: 54 °F
Slight Chance
T-storms then
Partly Cloudy
Monday
High: 72 °F
Mostly Sunny
then Chance
Showers
Monday Night
Low: 44 °F
Showers
Tuesday
High: 56 °F
Showers
Likely
Tuesday Night
Low: 42 °F
Chance
Showers then
Mostly Cloudy
Wednesday
High: 66 °F
Mostly Sunny
Wednesday Night
Low: 45 °F
Partly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 56. South wind 5 to 8 mph.

Sunday

Mostly sunny, with a high near 84. West southwest wind 5 to 10 mph, with gusts as high as 21 mph.

Sunday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 54. West southwest wind 5 to 9 mph becoming light southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

Monday

A 50 percent chance of showers after noon. Partly sunny, with a high near 72. Light and variable wind becoming north 6 to 11 mph in the morning. Winds could gust as high as 23 mph.

Monday Night

Showers and possibly a thunderstorm before midnight, then showers likely. Low around 44. North northeast wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

Tuesday

Showers likely. Cloudy, with a high near 56. Northeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

Tuesday Night

A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 42. East northeast wind 5 to 9 mph becoming light northeast after midnight.

Wednesday

Mostly sunny, with a high near 66. Light and variable wind becoming east 5 to 7 mph in the afternoon.

Wednesday Night

Partly cloudy, with a low around 45.

Thursday

Mostly sunny, with a high near 72.

Thursday Night

Mostly cloudy, with a low around 49.

Friday

Mostly sunny, with a high near 76.

Friday Night

Partly cloudy, with a low around 51.