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.

48°F

9°C

Humidity	66%
Wind Speed	SE 2 MPH
Barometer	NA
Dewpoint	37°F (3°C)
Visibility	NA
Last update	17 Jun 11:39 PM MDT

More Information:

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

Extended Forecast for

16 Miles NNW Silver Gate MT

Tonight
Low: 32 °F
Partly Cloudy
Thursday
High: 61 °F
Sunny
Thursday Night
Low: 34 °F
Partly Cloudy
Juneteenth
High: 67 °F
Mostly Sunny
Friday Night
Low: 42 °F
Mostly Cloudy
Saturday
High: 60 °F
Chance
Showers then
Showers
Saturday Night
Low: 38 °F
Showers then
Slight Chance
Showers
Sunday
High: 58 °F
Chance
Showers then
Showers
Likely
Sunday Night
Low: 35 °F
Chance
T-storms then
Partly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a low around 32. West northwest wind 3 to 6 mph.

Thursday

Sunny, with a high near 61. Light west northwest wind increasing to 10 to 15 mph in the morning.

Thursday Night

Partly cloudy, with a low around 34. Northwest wind 5 to 10 mph becoming northeast after midnight.

Juneteenth

Mostly sunny, with a high near 67. East northeast wind 5 to 11 mph becoming west southwest in the afternoon.

Friday Night

Mostly cloudy, with a low around 42. Northwest wind 5 to 10 mph becoming south southeast after midnight.

Saturday

A chance of showers, then showers and possibly a thunderstorm after noon. High near 60. West southwest wind 5 to 9 mph. Chance of precipitation is 90%.

Saturday Night

Showers and possibly a thunderstorm before midnight, then a slight chance of showers. Low around 38. West southwest wind 3 to 7 mph. 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 58. Light west northwest wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 70%.

Sunday Night

A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 35. North northwest wind 5 to 9 mph becoming south southeast after midnight.

Monday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 58. North northeast wind 5 to 11 mph becoming south southwest in the morning. Chance of precipitation is 40%.

Monday Night

Mostly clear, with a low around 34. North northwest wind 5 to 10 mph becoming east southeast after midnight.

Tuesday

Sunny, with a high near 64. South southeast wind 6 to 13 mph becoming west in the afternoon.

Tuesday Night

Partly cloudy, with a low around 38. Northwest wind 6 to 10 mph becoming south southeast after midnight.

Wednesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 67. South wind 6 to 13 mph becoming west in the afternoon.