Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Sieben I-15 MP 216 (MTSBN)

Lat: 46.88748267° N Lon: 112.1111196° W Elev: 4199.0 ft.

unknown precip

57°F

14°C

Humidity	66%
Wind Speed	NW 5 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Last update	19 Sep 04:30 PM MDT

More Information:

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

Detailed forecast for

Upper Blackfoot and MacDonald Pass

Tonight

Mostly cloudy in the evening then becoming partly cloudy. Patchy fog late in the night. Lows in the lower 40s. East winds up to 5 mph shifting to the west after midnight.

Sunday

Warmer, sunny. Highs 61 to 69. Southwest winds up to 5 mph shifting to the south in the afternoon.

Sunday Night

Mostly clear. Lows in the mid 40s. Southwest winds up to 5 mph.

Monday

Sunny. Highs 65 to 73. Southwest winds up to 10 mph.

Monday Night

Mostly clear. Lows in the mid 40s. Southwest winds up to 10 mph.

Tuesday

Sunny. Highs 66 to 74.

Tuesday Night Through Wednesday Night

Partly cloudy. Lows 44 to 50. Highs 65 to 73.