National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Current conditions at

Dillon, Dillon Airport (KDLN)

Lat: 45.2575°NLon: 112.55444°WElev: 5239.0ft.

Overcast

34°F

1°C

Humidity 86%
Wind Speed NE 18 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 11 Oct 12:35 AM MDT
Extended Forecast for

Dillon MT

Winter Weather Advisory October 11, 12:50am until October 12, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory October 11, 12:50am until October 12, 06:00am

    NOW until 6:00am Mon

    Winter Weather Advisory

  • Overnight

    Low: 28 °F

    Rain/Snow

  • Sunday

    Sunday: Rain and snow. High near 34. Northeast wind 8 to 17 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow, becoming all snow after 8pm. Low around 23. North wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Rain/Snow
    then Snow

  • Columbus Day

    Columbus Day: A 20 percent chance of snow before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 40. North northeast wind around 5 mph becoming calm in the morning.

    High: 40 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21. Light and variable wind.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. Southwest wind around 5 mph becoming calm in the morning.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 53. South southwest wind around 6 mph becoming calm in the afternoon.

    High: 53 °F

    Sunny

Detailed Forecast

Overnight
Snow, possibly mixed with rain, becoming all snow after 5am. Low around 28. Northeast wind 18 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Rain and snow. High near 34. Northeast wind 8 to 17 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Sunday Night
Rain and snow, becoming all snow after 8pm. Low around 23. North wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Columbus Day
A 20 percent chance of snow before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 40. North northeast wind around 5 mph becoming calm in the morning.
Monday Night
Mostly cloudy, with a low around 21. Light and variable wind.
Tuesday
Mostly sunny, with a high near 47. Southwest wind around 5 mph becoming calm in the morning.
Tuesday Night
Mostly clear, with a low around 22. Calm wind becoming south southwest around 5 mph after midnight.
Wednesday
Sunny, with a high near 53. South southwest wind around 6 mph becoming calm in the afternoon.
Wednesday Night
Mostly clear, with a low around 26.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dillon MT
 45.22°N 112.62°W (Elev. 5125 ft)
Last Update:
12:32 am MDT Oct 11, 2026
Forecast Valid:
12am MDT Oct 11, 2026-6pm MDT Oct 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation