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 develop off the southeast U.S. coast tonight and is expected to strengthen and bring flooding, dangerous rip currents, gusty winds and heavy rain up much of the East Coast through early next week. Read More >

Current conditions at

YELLOW MULE (YLWM8)

Lat: 45.1661°NLon: 111.35954°WElev: 9200.0ft.

NA

52°F

11°C

Humidity 55%
Wind Speed SSE 14 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 10 Oct 04:04 PM MDT
Extended Forecast for

20 Miles S Big Sky MT

Winter Storm Watch October 11, 06:00pm until October 13, 06:00am
Click here for hazard details and duration
Winter Storm Watch
  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 53. South wind around 18 mph, with gusts as high as 29 mph.

    High: 53 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers likely, mainly after 2am.  Increasing clouds, with a low around 42. South wind 17 to 21 mph, with gusts as high as 31 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Rain showers before 5pm, then rain and snow showers. Some thunder is also possible.  Temperature falling to around 34 by 5pm. South southwest wind 13 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 44 °F

    Showers
    Likely then
    Rain/Snow

  • Saturday Night

    Saturday Night: Snow showers before midnight, then snow after midnight. The snow could be heavy at times. Some thunder is also possible.  Low around 24. Southwest wind 11 to 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 24 °F

    Heavy Snow

  • Sunday

    Sunday: Snow likely, mainly before noon. The snow could be heavy at times.  Cloudy, with a high near 27. Southwest wind 13 to 17 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of 3 to 5 inches possible.

    High: 27 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 19. South southeast wind 13 to 17 mph, with gusts as high as 26 mph.

    Low: 19 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 35. East southeast wind 7 to 13 mph.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. Northeast wind 5 to 9 mph.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of snow before 3pm, then a chance of rain and snow.  Partly sunny, with a high near 39.

    High: 39 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 53. South wind around 18 mph, with gusts as high as 29 mph.
Tonight
Showers likely, mainly after 2am. Increasing clouds, with a low around 42. South wind 17 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain showers before 5pm, then rain and snow showers. Some thunder is also possible. Temperature falling to around 34 by 5pm. South southwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday Night
Snow showers before midnight, then snow after midnight. The snow could be heavy at times. Some thunder is also possible. Low around 24. Southwest wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Sunday
Snow likely, mainly before noon. The snow could be heavy at times. Cloudy, with a high near 27. Southwest wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of 3 to 5 inches possible.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 19. South southeast wind 13 to 17 mph, with gusts as high as 26 mph.
Columbus Day
Mostly sunny, with a high near 35. East southeast wind 7 to 13 mph.
Monday Night
Mostly cloudy, with a low around 25. Northeast wind 5 to 9 mph.
Tuesday
A chance of snow before 3pm, then a chance of rain and snow. Partly sunny, with a high near 39.
Tuesday Night
A chance of rain and snow, mainly after midnight. Mostly cloudy, with a low around 30.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 40.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 30.
Thursday
A chance of snow. Partly sunny, with a high near 37.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 29.
Friday
A chance of snow. Partly sunny, with a high near 33.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
20 Miles S Big Sky MT
 44.98°N 111.27°W (Elev. 8947 ft)
4:22 pm MDT Oct 10, 2025
4pm MDT Oct 10, 2025-6pm MDT Oct 17, 2025
 
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Additional Resources

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