National Weather Service

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SCN26-50: Discontinuation of the State Forecast Product (SFP) for all NWS Central Region, Southern Region, and Western Region Offices: Effective June 29, 2026
The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will now be discontinued on July 7, 2026.

Hazardous Weather Conditions

High Wind Watch in effect from June 10, 09:00 AM MDT until June 11, 03:00 AM MDT

Current conditions at

Sieben I-15 MP 216 (MTSBN)

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

53°F

12°C

Humidity	63%
Wind Speed	NW 1 MPH
Barometer	NA
Dewpoint	41°F (5°C)
Visibility	NA
Last update	09 Jun 02:00 AM MDT

More Information:

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

Detailed forecast for

Upper Blackfoot and MacDonald Pass

Rest Of Tonight

Mostly cloudy. Lows 43 to 49. Southwest winds up to 10 mph. Gusts up to 25 mph after midnight.

Tuesday

Breezy. Partly sunny. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 51 to 61. West winds 10 to 15 mph with gusts to around 30 mph increasing to 10 to 25 mph with gusts to around 40 mph in the afternoon. Chance of precipitation 50 percent.

Tuesday Night

Breezy, colder. Partly cloudy in the evening then becoming mostly cloudy. Lows 34 to 40. West winds 15 to 25 mph with gusts to around 45 mph.

Wednesday

Windy. Partly sunny. Slight chance of rain showers and snow showers in the morning, then chance of rain showers in the afternoon. Highs 42 to 50. West winds 20 to 30 mph with gusts to around 55 mph. Chance of precipitation 50 percent.

Wednesday Night

Windy. Mostly cloudy. Chance of rain showers and snow showers in the evening, then slight chance of rain showers after midnight. Lows 34 to 40. West winds 20 to 30 mph decreasing to 15 to 20 mph after midnight. Gusts up to 55 mph. Chance of precipitation 40 percent.

Thursday

Not as cool. Mostly sunny. Highs 55 to 63.

Thursday Night And Friday

Mostly clear. Lows in the upper 30s. Highs 62 to 70.

Friday Night

Mostly clear with a 20 percent chance of rain showers. Lows in the lower 40s.

Saturday

Partly sunny. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 63. Chance of precipitation 40 percent.

Saturday Night

Partly cloudy with a 20 percent chance of rain showers. Lows in the lower 40s.

Sunday

Mostly sunny. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Highs 57 to 65. Chance of precipitation 20 percent.

Sunday Night

Partly cloudy. A 20 percent chance of rain showers after midnight. Lows in the lower 40s.

Monday

Mostly sunny. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Highs 59 to 67. Chance of precipitation 20 percent.