Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

MAIN BOULDER (MBRM8)

Lat: 45.45813°NLon: 110.19768°WElev: 5405.0ft.

51°F

11°C

Humidity	58%
Wind Speed	SSE 1 MPH
Barometer	NA
Dewpoint	37°F (3°C)
Visibility	NA
Last update	17 Jun 10:39 PM MDT

More Information:

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

Extended Forecast for

7 Miles NNW Silver Gate MT

Tonight
Low: 33 °F
Mostly Clear
Thursday
High: 62 °F
Sunny
Thursday Night
Low: 35 °F
Partly Cloudy
Juneteenth
High: 68 °F
Mostly Sunny
Friday Night
Low: 43 °F
Mostly Cloudy
Saturday
High: 61 °F
Chance
Showers then
Showers
Saturday Night
Low: 39 °F
Showers then
Slight Chance
Showers
Sunday
High: 59 °F
Chance
Showers then
Showers
Likely
Sunday Night
Low: 36 °F
Chance
T-storms then
Partly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 33. Light and variable wind.

Thursday

Sunny, with a high near 62. Light west wind becoming west northwest 8 to 13 mph in the morning.

Thursday Night

Partly cloudy, with a low around 35. Northwest wind 5 to 8 mph becoming calm in the evening.

Juneteenth

Mostly sunny, with a high near 68. Calm wind becoming west 5 to 9 mph in the afternoon.

Friday Night

Mostly cloudy, with a low around 43. West northwest wind 5 to 7 mph becoming calm in the evening.

Saturday

A chance of showers, then showers and possibly a thunderstorm after noon. High near 61. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 90%.

Saturday Night

Showers and possibly a thunderstorm before midnight, then a slight chance of showers. Low around 39. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

Sunday

A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 59. Calm wind becoming west northwest 5 to 8 mph in the afternoon. Chance of precipitation is 70%.

Sunday Night

A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 36. Northwest wind around 6 mph becoming light and variable after midnight.

Monday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 60. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 40%.

Monday Night

Mostly clear, with a low around 35. North northwest wind 5 to 8 mph becoming east after midnight.

Tuesday

Sunny, with a high near 65. Light and variable wind becoming west 5 to 10 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 39. Northwest wind 5 to 8 mph becoming southeast in the evening.

Wednesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 68. Light and variable wind becoming west 6 to 11 mph in the afternoon.