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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

Dillon, Dillon Airport (KDLN)

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

Overcast

43°F

6°C

Humidity 81%
Wind Speed SSW 9 MPH
Barometer 29.72 in (1006.44 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 25 Dec 03:05 AM MST
Extended Forecast for

Dillon Airport MT

  • Overnight

    Overnight: A 50 percent chance of rain. Mostly cloudy, with a steady temperature around 41. South wind around 11 mph.

    Low: 41 °F

    Chance Rain

  • Christmas Day

    Christmas Day: A 30 percent chance of rain, mainly before 7am. Mostly sunny, with a high near 49. South wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 49 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: A chance of rain and snow before 4am, then a chance of snow. Mostly cloudy, with a low around 32. South southwest wind 11 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 2pm, then a slight chance of snow. Mostly sunny, with a high near 45. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 45 °F

    Chance
    Rain/Snow and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of snow after 11pm. Partly cloudy, with a low around 23. South southwest wind around 16 mph, with gusts as high as 28 mph.

    Low: 23 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 30. Southwest wind around 15 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 7. West northwest wind 8 to 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 7 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 26. Southwest wind around 7 mph.

    High: 26 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

Detailed Forecast

Overnight
A 50 percent chance of rain. Mostly cloudy, with a steady temperature around 41. South wind around 11 mph.
Christmas Day
A 30 percent chance of rain, mainly before 7am. Mostly sunny, with a high near 49. South wind 10 to 14 mph, with gusts as high as 21 mph.
Thursday Night
A chance of rain and snow before 4am, then a chance of snow. Mostly cloudy, with a low around 32. South southwest wind 11 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
A chance of rain and snow before 2pm, then a slight chance of snow. Mostly sunny, with a high near 45. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday Night
A 20 percent chance of snow after 11pm. Partly cloudy, with a low around 23. South southwest wind around 16 mph, with gusts as high as 28 mph.
Saturday
A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 30. Southwest wind around 15 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph. New snow accumulation of less than a half inch possible.
Saturday Night
Partly cloudy, with a low around 7. West northwest wind 8 to 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Sunday
Mostly sunny, with a high near 26. Southwest wind around 7 mph.
Sunday Night
Mostly clear, with a low around 12.
Monday
Sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dillon Airport MT
 45.25°N 112.57°W (Elev. 5098 ft)
Last Update:
2:11 am MST Dec 25, 2025
Forecast Valid:
3am MST Dec 25, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation