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.

45°F

7°C

Humidity	72%
Wind Speed	SE 3 MPH
Barometer	NA
Dewpoint	36°F (2°C)
Visibility	NA
Last update	18 Jun 01:39 AM MDT

More Information:

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

Extended Forecast for

13 Miles NW Silver Gate MT

Overnight
Low: 32 °F
Mostly Clear
Thursday
High: 58 °F
Sunny
Thursday Night
Low: 34 °F
Mostly Clear
Juneteenth
High: 63 °F
Mostly Sunny
Friday Night
Low: 42 °F
Mostly Cloudy
Saturday
High: 56 °F
Chance
Showers then
Showers
Saturday Night
Low: 39 °F
Showers then
Slight Chance
Showers
Sunday
High: 55 °F
Mostly Sunny
then Chance
T-storms
Sunday Night
Low: 34 °F
Chance
T-storms then
Partly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 32. West northwest wind 3 to 5 mph.

Thursday

Sunny, with a high near 58. Light west wind becoming west northwest 11 to 16 mph in the morning.

Thursday Night

Mostly clear, with a low around 34. West northwest wind 6 to 16 mph becoming north northeast after midnight.

Juneteenth

Mostly sunny, with a high near 63. South wind 5 to 11 mph becoming west southwest in the afternoon.

Friday Night

Mostly cloudy, with a low around 42. West southwest wind 7 to 11 mph becoming southeast after midnight.

Saturday

A chance of showers, then showers and possibly a thunderstorm after noon. High near 56. South southwest wind 6 to 8 mph becoming west 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 3 to 8 mph. Chance of precipitation is 80%.

Sunday

A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 55. Light west wind becoming west northwest 5 to 10 mph in the morning.

Sunday Night

A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 34. Northwest wind 5 to 10 mph becoming east after midnight.

Monday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 54. Light and variable wind becoming northwest 6 to 11 mph in the afternoon. Chance of precipitation is 30%.

Monday Night

Mostly clear, with a low around 32. North northwest wind 7 to 13 mph becoming east after midnight.

Tuesday

Sunny, with a high near 61. East wind 5 to 13 mph becoming west in the afternoon.

Tuesday Night

Mostly clear, with a low around 38. Northwest wind 6 to 13 mph becoming southeast after midnight.

Wednesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 60. South southeast wind 5 to 13 mph becoming west in the afternoon.