Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Boulder Hill I-15 MP 170.9 (MTBOU)

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

85°F

29°C

Humidity	17%
Wind Speed	NA 3 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Heat Index	82°F (28°C)
Last update	15 Aug 11:45 PM MDT

More Information:

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

Extended Forecast for

7 Miles E Boulder MT

Overnight
Low: 59 °F
Haze
Saturday
High: 84 °F
Haze then
Chance
Showers
Saturday Night
Low: 58 °F
Mostly Cloudy
Sunday
High: 80 °F
Mostly Sunny
then Chance
Showers
Sunday Night
Low: 55 °F
Chance
T-storms then
Partly Cloudy
Monday
High: 81 °F
Sunny
Monday Night
Low: 58 °F
Partly Cloudy
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 61 °F
Partly Cloudy

Detailed Forecast

Overnight

Widespread haze before 2am. Mostly clear, with a low around 59. North northwest wind around 7 mph.

Saturday

A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Widespread haze between 7am and noon. Increasing clouds, with a high near 84. West northwest wind 5 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 23 mph.

Saturday Night

Mostly cloudy, with a low around 58. West southwest wind 6 to 11 mph becoming northwest in the evening. Winds could gust as high as 22 mph.

Sunday

A chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 80. West northwest wind around 7 mph becoming south in the afternoon. Chance of precipitation is 50%.

Sunday Night

A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55. West southwest wind 6 to 8 mph.

Monday

Sunny, with a high near 81. West southwest wind 6 to 8 mph becoming south in the afternoon. Winds could gust as high as 18 mph.

Monday Night

Partly cloudy, with a low around 58. West northwest wind 6 to 8 mph.

Tuesday

Sunny, with a high near 87. West southwest wind around 7 mph becoming south in the afternoon.

Tuesday Night

Partly cloudy, with a low around 61.

Wednesday

Sunny, with a high near 87.