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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

Winter Weather Advisory until June 29, 12:00 PM MDT

Current conditions at

Boulder Hill I-15 MP 170.9 (MTBOU)

Lat: 46.3233°NLon: 112.06891°WElev: 5593.0ft.

unknown precip

46°F

8°C

Humidity	87%
Wind Speed	NNE 0 MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Last update	28 Jun 12:30 AM MDT

More Information:

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

Extended Forecast for

6 Miles ESE Boulder MT

Winter Weather Advisory June 28, 12:45am until June 29, 12:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory June 28, 12:45am until June 29, 12:00pm
NOW until 12:00pm Mon
Winter Weather Advisory
Overnight
Low: 46 °F
Rain
Sunday
High: 41 °F
Rain
Sunday Night
Low: 41 °F
Rain
Monday
High: 45 °F
Rain
Monday Night
Low: 41 °F
Rain then
Chance Rain
Tuesday
High: 59 °F
Partly Sunny
then Chance
T-storms
Tuesday Night
Low: 45 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 63 °F
Showers
Likely

Detailed Forecast

Overnight

Rain. Steady temperature around 46. Northwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Sunday

Rain. High near 41. West wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Sunday Night

Rain. Steady temperature around 41. West wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Monday

Rain, with thunderstorms also possible after 3pm. High near 45. West southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

Monday Night

Rain, mainly before midnight. Low around 41. West wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

Tuesday

A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 59. West southwest wind around 7 mph.

Tuesday Night

A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45. West wind 5 to 7 mph.

Wednesday

A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 63. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.

Wednesday Night

A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.

Thursday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 48.

Friday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 64.

Friday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 44.

Independence Day

Mostly sunny, with a high near 64.