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

16 Miles NNW Silver Gate MT

Overnight
Low: 33 °F
Mostly Clear
Thursday
High: 60 °F
Sunny
Thursday Night
Low: 34 °F
Partly Cloudy
Juneteenth
High: 64 °F
Mostly Sunny
Friday Night
Low: 43 °F
Mostly Cloudy
Saturday
High: 58 °F
Chance
Showers then
Showers
Saturday Night
Low: 39 °F
Showers then
Slight Chance
Showers
Sunday
High: 57 °F
Slight Chance
Showers then
Showers
Likely
Sunday Night
Low: 35 °F
Chance
T-storms then
Partly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 33. Light west wind.

Thursday

Sunny, with a high near 60. Light west wind increasing to 11 to 16 mph in the morning.

Thursday Night

Partly cloudy, with a low around 34. West northwest wind 5 to 14 mph becoming northeast after midnight.

Juneteenth

Mostly sunny, with a high near 64. South southeast wind 5 to 10 mph becoming west southwest in the afternoon.

Friday Night

Mostly cloudy, with a low around 43. Southwest wind 5 to 8 mph becoming east in the evening.

Saturday

A chance of showers, then showers and possibly a thunderstorm after noon. High near 58. South southwest wind 5 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 southwest wind 3 to 6 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 57. Light and variable wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 60%.

Sunday Night

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

Monday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 57. Light and variable wind becoming northwest 5 to 10 mph in the morning. Chance of precipitation is 50%.

Monday Night

Partly cloudy, with a low around 34. North wind 6 to 10 mph becoming southeast after midnight.

Tuesday

Sunny, with a high near 64. South southeast wind 6 to 11 mph becoming west northwest in the afternoon.

Tuesday Night

Mostly clear, with a low around 39. North northwest wind 6 to 9 mph becoming south southeast after midnight.

Wednesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 64. South wind 7 to 11 mph becoming west in the afternoon.