Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Hazardous Weather Conditions

Winter Weather Advisory until October 12, 06:00 AM MDT

Current conditions at

ROCKY BOY (RCBM8)

Lat: 48.25529°NLon: 109.78592°WElev: 3789.0ft.

34°F

1°C

Humidity	92%
Wind Speed	E 2 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Last update	11 Oct 12:18 PM MDT

More Information:

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

Extended Forecast for

2 Miles NW Rocky Boy MT

Winter Weather Advisory October 11, 12:33pm until October 12, 06:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory October 11, 12:33pm until October 12, 06:00am
NOW until 6:00am Mon
Winter Weather Advisory
This Afternoon
High: 36 °F
Rain/Snow
Tonight
Low: 25 °F
Rain/Snow
Columbus Day
High: 39 °F
Rain/Snow
then Slight
Chance
Rain/Snow
Monday Night
Low: 23 °F
Gradual
Clearing
Tuesday
High: 46 °F
Sunny
Tuesday Night
Low: 26 °F
Mostly Clear
Wednesday
High: 53 °F
Sunny
Wednesday Night
Low: 30 °F
Partly Cloudy

Detailed Forecast

This Afternoon

Snow, possibly mixed with rain. High near 36. East northeast wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

Tonight

Snow, possibly mixed with rain, becoming all snow after 4am. Low around 25. East northeast wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Columbus Day

Rain and snow, mainly before noon. High near 39. North northeast wind 5 to 9 mph becoming west southwest in the afternoon. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Monday Night

Cloudy during the early evening, then gradual clearing, with a low around 23. South wind 3 to 6 mph.

Tuesday

Sunny, with a high near 46. South southwest wind 3 to 8 mph.

Tuesday Night

Mostly clear, with a low around 26. Calm wind.

Wednesday

Sunny, with a high near 53. Calm wind becoming south southwest around 5 mph in the afternoon.

Wednesday Night

Partly cloudy, with a low around 30. South southwest wind around 6 mph.

Thursday

Mostly sunny, with a high near 52.