Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from October 10, 06:00 PM MDT until October 12, 06:00 AM MDT

Current conditions at

ROCKY BOY (RCBM8)

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

37°F

3°C

Humidity	96%
Wind Speed	N 6 MPH
Barometer	NA
Dewpoint	36°F (2°C)
Visibility	NA
Wind Chill	32°F (0°C)
Last update	10 Oct 04:18 PM MDT

More Information:

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

Extended Forecast for

Big Sandy MT

Winter Weather Advisory October 10, 06:00pm until October 12, 06:00am

Click here for hazard details and duration

Winter Weather Advisory

This Afternoon
High: 42 °F
Rain
Tonight
Low: 29 °F
Rain/Snow
then Snow
Sunday
High: 37 °F
Snow then
Rain/Snow
Sunday Night
Low: 27 °F
Rain/Snow
Columbus Day
High: 36 °F
Rain/Snow
then Slight
Chance
Rain/Snow
Monday Night
Low: 23 °F
Mostly Cloudy
Tuesday
High: 50 °F
Mostly Sunny
Tuesday Night
Low: 26 °F
Mostly Clear
Wednesday
High: 57 °F
Sunny

Detailed Forecast

This Afternoon

Rain. Steady temperature around 42. North wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

Tonight

Rain and snow, becoming all snow after 9pm. Low around 29. North wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Sunday

Snow before 1pm, then rain and snow between 1pm and 4pm, then snow after 4pm. High near 37. North northeast wind 13 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Sunday Night

Snow before 9pm, then snow, possibly mixed with rain. Low around 27. North northeast wind 7 to 13 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

Columbus Day

Snow, possibly mixed with rain, mainly before noon. High near 36. North northeast wind 5 to 7 mph becoming calm in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Monday Night

Mostly cloudy, with a low around 23. Light south wind.

Tuesday

Mostly sunny, with a high near 50. Light and variable wind.

Tuesday Night

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

Wednesday

Sunny, with a high near 57.

Wednesday Night

Partly cloudy, with a low around 31.

Thursday

Mostly sunny, with a high near 57.