Severe Thunderstorm and Tropical Storm Bertha Impacts

Numerous severe thunderstorms are expected across a broad region from the Ohio Valley to the Mid-Atlantic and Northeast States today into tonight. Swaths of damaging wind gusts are expected and some tornadoes are possible. Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the Florida Panhandle westward to southeastern Louisiana later today and Wednesday. Read More >

Current conditions at

Sieben I-15 MP 216 (MTSBN)

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

70°F

21°C

Humidity	53%
Wind Speed	N 4 MPH
Barometer	NA
Dewpoint	52°F (11°C)
Visibility	NA
Last update	21 Jul 10:30 AM MDT

More Information:

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

Detailed forecast for

Upper Blackfoot and MacDonald Pass

Today

Partly sunny. Patchy smoke. Highs 73 to 83. East winds up to 10 mph.

Tonight

Mostly cloudy in the evening then becoming partly cloudy. Patchy smoke. Lows 55 to 61. Northeast winds up to 10 mph shifting to the west after midnight.

Wednesday

Partly sunny. Slight chance of rain showers in the morning, then chance of thunderstorms in the afternoon. Highs 76 to 86. Southeast winds up to 5 mph shifting to the north in the afternoon. Chance of precipitation 50 percent.

Wednesday Night

Mostly cloudy. Chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows 56 to 62. West winds up to 10 mph. Chance of precipitation 50 percent.

Thursday

Sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 78 to 88. West winds up to 10 mph.

Thursday Night

Mostly clear. Lows 57 to 63.

Friday

Sunny. Highs 81 to 91.

Friday Night

Mostly clear. Lows 57 to 63.

Saturday

Sunny. Highs 82 to 90.

Saturday Night

Mostly clear. Lows 56 to 62.