Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

ST. MARY (SRYM8)

Lat: 48.74108°NLon: 113.43289°WElev: 4557.0ft.

67°F

19°C

Humidity	44%
Wind Speed	S 7 MPH
Barometer	NA
Dewpoint	44°F (7°C)
Visibility	NA
Last update	27 Aug 12:11 AM MDT

More Information:

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

Extended Forecast for

St Mary MT

Overnight
Low: 55 °F
Patchy Smoke
Thursday
High: 83 °F
Patchy Smoke
then Slight
Chance
T-storms
Thursday Night
Low: 50 °F
Patchy Smoke
then Mostly
Clear
Friday
High: 72 °F
Patchy Smoke
Friday Night
Low: 45 °F
Partly Cloudy
Saturday
High: 67 °F
Mostly Sunny
Saturday Night
Low: 41 °F
Chance
Showers
Sunday
High: 60 °F
Chance
Showers
Sunday Night
Low: 39 °F
Slight Chance
Showers then
Mostly Clear

Detailed Forecast

Overnight

Patchy smoke after 5am. Mostly cloudy, with a low around 55. South southwest wind around 5 mph.

Thursday

A slight chance of showers and thunderstorms between 4pm and 5pm. Patchy smoke before noon. Mostly cloudy, with a high near 83. South southwest wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Thursday Night

Patchy smoke between 8pm and midnight. Mostly clear, with a low around 50. South southwest wind 6 to 9 mph, with gusts as high as 22 mph.

Friday

Patchy smoke after 9am. Sunny, with a high near 72. Southwest wind 6 to 11 mph, with gusts as high as 25 mph.

Friday Night

Partly cloudy, with a low around 45. West southwest wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 23 mph.

Saturday

Mostly sunny, with a high near 67. Light west southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 23 mph.

Saturday Night

A 30 percent chance of showers, mainly after midnight. Partly cloudy, with a low around 41. West southwest wind 6 to 9 mph, with gusts as high as 21 mph.

Sunday

A chance of showers. Partly sunny, with a high near 60. West southwest wind 7 to 13 mph, with gusts as high as 25 mph.

Sunday Night

A slight chance of showers before midnight. Partly cloudy, with a low around 39.

Monday

Sunny, with a high near 69.

Monday Night

Partly cloudy, with a low around 43.

Tuesday

Mostly sunny, with a high near 71.

Tuesday Night

Partly cloudy, with a low around 44.