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.

46°F

8°C

Humidity	73%
Wind Speed	SSE 1 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Last update	18 Jun 12:39 AM MDT

More Information:

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

Extended Forecast for

3 Miles NNW Silver Gate MT

Overnight
Low: 30 °F
Mostly Clear
Thursday
High: 57 °F
Sunny
Thursday Night
Low: 32 °F
Mostly Clear
Juneteenth
High: 62 °F
Partly Sunny
Friday Night
Low: 40 °F
Mostly Cloudy
Saturday
High: 55 °F
Chance
Showers then
Showers
Saturday Night
Low: 36 °F
Showers then
Chance
Showers
Sunday
High: 54 °F
Slight Chance
Showers then
Showers
Likely
Sunday Night
Low: 33 °F
Chance
T-storms then
Partly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 30. West northwest wind 3 to 6 mph.

Thursday

Sunny, with a high near 57. Light west northwest wind becoming west 10 to 15 mph in the morning.

Thursday Night

Mostly clear, with a low around 32. West northwest wind 9 to 16 mph becoming east after midnight.

Juneteenth

Partly sunny, with a high near 62. East wind 6 to 11 mph becoming west southwest in the afternoon.

Friday Night

Mostly cloudy, with a low around 40. West southwest wind 8 to 10 mph becoming east southeast in the evening.

Saturday

A chance of showers, then showers and possibly a thunderstorm after noon. High near 55. South southeast wind 6 to 8 mph becoming west in the morning. Chance of precipitation is 90%.

Saturday Night

Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 36. West wind 5 to 7 mph. Chance of precipitation is 80%.

Sunday

A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 54. West wind 3 to 8 mph. Chance of precipitation is 60%.

Sunday Night

A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 33. Northwest wind around 6 mph becoming calm in the evening.

Monday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 52. Calm wind becoming west northwest 5 to 9 mph in the afternoon. Chance of precipitation is 40%.

Monday Night

Partly cloudy, with a low around 32. North northwest wind 5 to 8 mph becoming east northeast after midnight.

Tuesday

Sunny, with a high near 59. Light and variable wind becoming west 5 to 10 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 37. Northwest wind 5 to 8 mph becoming light and variable after midnight.

Wednesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 59. Light and variable wind becoming west 6 to 11 mph in the afternoon.