Heavy Rainfall and Flooding Concerns in the Southwest; Coastal Low to Impact the East Coast

Deep tropical moisture will lead to widespread showers and thunderstorms capable of producing flash flooding through early next week over the Southwest and Four Corners. A coastal storm is expected to impact the southeast U.S. coast and mid-Atlantic regions with flooding, dangerous rip currents, gusty winds and heavy rain up much of the East Coast through early next week. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from October 11, 09:00 PM MDT until October 12, 12:00 PM MDT

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.

unknown precip

47°F

8°C

Humidity	NA
Wind Speed	NE 0 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

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

Extended Forecast for

4 Miles E Big Sky MT

Winter Weather Advisory October 11, 09:00pm until October 12, 12:00pm

Click here for hazard details and duration

Winter Weather Advisory

Today
High: 64 °F
Showers
Tonight
Low: 26 °F
Showers then
Rain/Snow
Sunday
High: 47 °F
Snow Likely
then Chance
Rain
Sunday Night
Low: 22 °F
Slight Chance
Rain/Snow
then Mostly
Cloudy
Columbus Day
High: 52 °F
Mostly Sunny
Monday Night
Low: 24 °F
Mostly Cloudy
then Slight
Chance
Rain/Snow
Tuesday
High: 52 °F
Chance
Rain/Snow
then Chance
Rain
Tuesday Night
Low: 30 °F
Chance Rain
Wednesday
High: 52 °F
Rain/Snow
Likely then
Rain Likely

Detailed Forecast

Today

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11am. High near 64. Southeast wind 6 to 8 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

Tonight

Rain before 2am, then rain and snow likely between 2am and 3am, then snow likely after 3am. Some thunder is also possible. Low around 26. South southeast wind around 6 mph becoming north northwest after midnight. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Sunday

Snow likely before noon, then a chance of rain. Mostly cloudy, with a high near 47. South southwest wind 5 to 8 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Sunday Night

A slight chance of rain and snow before 9pm, then a slight chance of snow between 9pm and midnight. Mostly cloudy, with a low around 22. South wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Columbus Day

Mostly sunny, with a high near 52. Light east wind.

Monday Night

A slight chance of rain after midnight, mixing with snow after 3am. Mostly cloudy, with a low around 24. Light east wind. Chance of precipitation is 20%.

Tuesday

A chance of rain and snow before 9am, then a chance of rain. Partly sunny, with a high near 52. Light east southeast wind. Chance of precipitation is 50%. Little or no snow accumulation expected.

Tuesday Night

A chance of rain. Mostly cloudy, with a low around 30. Light southeast wind.

Wednesday

Rain and snow likely, becoming all rain after 9am. Mostly cloudy, with a high near 52.

Wednesday Night

Rain likely before 3am, then rain and snow likely. Mostly cloudy, with a low around 27.

Thursday

Rain and snow likely. Mostly cloudy, with a high near 48.

Thursday Night

A chance of rain and snow. Mostly cloudy, with a low around 27.

Friday

A chance of rain and snow. Partly sunny, with a high near 48.