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 5 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Heat Index	82°F (28°C)
Last update	16 Aug 07:15 PM MDT

More Information:

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

Extended Forecast for

2 Miles NNE Boulder MT

Tonight
Low: 55 °F
Chance
T-storms then
Haze
Sunday
High: 80 °F
Haze then
Showers
Likely
Sunday Night
Low: 54 °F
Chance
T-storms then
Partly Cloudy
Monday
High: 84 °F
Haze then
Slight Chance
Showers
Monday Night
Low: 58 °F
Partly Cloudy
Tuesday
High: 91 °F
Sunny
Tuesday Night
Low: 59 °F
Partly Cloudy
Wednesday
High: 90 °F
Sunny
Wednesday Night
Low: 56 °F
Partly Cloudy

Detailed Forecast

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 9pm. Widespread haze before 8pm, then widespread haze after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 55. North northwest wind 5 to 9 mph becoming calm in the evening.

Sunday

A chance of showers and thunderstorms, then showers likely after 3pm. Widespread haze between 8am and 11am. Areas of smoke before 8am. Partly sunny, with a high near 80. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54. South southwest wind 5 to 7 mph becoming calm in the evening.

Monday

A 20 percent chance of showers after noon. Widespread haze before 7am. Mostly sunny, with a high near 84. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

Monday Night

Partly cloudy, with a low around 58. West wind 5 to 7 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 91. Calm wind becoming south 5 to 8 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 59. North wind 5 to 7 mph becoming light and variable after midnight.

Wednesday

Sunny, with a high near 90. Calm wind becoming west 5 to 9 mph in the afternoon.

Wednesday Night

Partly cloudy, with a low around 56.

Thursday

Sunny, with a high near 85.