Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Sieben I-15 MP 216 (MTSBN)

Lat: 46.88748267°NLon: 112.1111196°WElev: 4199.0ft.

59°F

15°C

Humidity	67%
Wind Speed	NW 0 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	22 Aug 07:00 AM MDT

More Information:

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

Extended Forecast for

5 Miles NW Marysville MT

Today
High: 83 °F
Chance
Showers then
Chance
T-storms
Tonight
Low: 58 °F
Chance
T-storms then
Partly Cloudy
Sunday
High: 78 °F
Decreasing
Clouds
Sunday Night
Low: 53 °F
Patchy Smoke
then Mostly
Clear
Monday
High: 78 °F
Sunny
Monday Night
Low: 55 °F
Partly Cloudy
Tuesday
High: 79 °F
Mostly Sunny
Tuesday Night
Low: 57 °F
Partly Cloudy
Wednesday
High: 81 °F
Mostly Sunny

Detailed Forecast

Today

A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

Tonight

A 50 percent chance of showers and thunderstorms, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 58. West southwest wind 5 to 7 mph.

Sunday

Mostly cloudy, then gradually becoming sunny, with a high near 78. Light west southwest wind becoming west 12 to 17 mph in the morning. Winds could gust as high as 29 mph.

Sunday Night

Patchy smoke between 9pm and 11pm. Mostly clear, with a low around 53. West wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 26 mph.

Monday

Sunny, with a high near 78. Calm wind becoming west 5 to 8 mph in the afternoon.

Monday Night

Partly cloudy, with a low around 55. West northwest wind 5 to 9 mph becoming calm in the evening.

Tuesday

Mostly sunny, with a high near 79. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 57. East wind around 6 mph becoming calm after midnight.

Wednesday

Mostly sunny, with a high near 81.

Wednesday Night

A slight chance of showers before midnight. Mostly cloudy, with a low around 56.