Remnants of Arthur and Heavy Rainfall Across the South; Fire Weather Threat in the West

Life-threatening, potentially catastrophic flash flooding expected along the central Gulf Coast as the remnants of Arthur track across the area. Isolated brief tornadoes and damaging gusts remain possible overnight in the Southeast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts of the West Friday. Read More >

Current conditions at

MAIN BOULDER (MBRM8)

Lat: 45.45813°NLon: 110.19768°WElev: 5405.0ft.

NA

56°F

13°C

Humidity 57%
Wind Speed N 4 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 18 Jun 08:39 PM MDT
Extended Forecast for

9 Miles N Cooke City MT

  • Tonight

    Tonight: Mostly clear, with a low around 26. Northwest wind 9 to 13 mph becoming west southwest in the evening.

    Low: 26 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 47. West wind 8 to 10 mph.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. West southwest wind 10 to 13 mph becoming east in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers and possibly a thunderstorm after noon.  High near 46. West southwest wind 9 to 11 mph.  Chance of precipitation is 90%.

    High: 46 °F

    Mostly Cloudy
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 34. West wind around 9 mph.  Chance of precipitation is 90%.

    Low: 34 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: Rain, possibly mixed with snow showers, mainly after noon. Some thunder is also possible.  High near 42. West wind 9 to 11 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers.  Mostly cloudy, with a low around 29. Northwest wind 6 to 8 mph becoming south after midnight.  Chance of precipitation is 70%.

    Low: 29 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: A chance of rain and snow showers before noon, then rain showers likely. Some thunder is also possible.  Partly sunny, with a high near 41. Southwest wind 5 to 10 mph becoming northwest in the afternoon.  Chance of precipitation is 60%.

    High: 41 °F

    Chance
    Rain/Snow
    then Showers
    Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27. North northwest wind 6 to 10 mph becoming south southeast after midnight.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 26. Northwest wind 9 to 13 mph becoming west southwest in the evening.
Juneteenth
Mostly sunny, with a high near 47. West wind 8 to 10 mph.
Friday Night
Mostly cloudy, with a low around 37. West southwest wind 10 to 13 mph becoming east in the evening.
Saturday
Showers and possibly a thunderstorm after noon. High near 46. West southwest wind 9 to 11 mph. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm. Low around 34. West wind around 9 mph. Chance of precipitation is 90%.
Sunday
Rain, possibly mixed with snow showers, mainly after noon. Some thunder is also possible. High near 42. West wind 9 to 11 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 29. Northwest wind 6 to 8 mph becoming south after midnight. Chance of precipitation is 70%.
Monday
A chance of rain and snow showers before noon, then rain showers likely. Some thunder is also possible. Partly sunny, with a high near 41. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 27. North northwest wind 6 to 10 mph becoming south southeast after midnight.
Tuesday
Mostly sunny, with a high near 46. South wind 5 to 10 mph becoming northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 32. North wind 7 to 9 mph becoming south southeast after midnight.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 50. Southwest wind 6 to 11 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 34. West wind 6 to 9 mph becoming south after midnight.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 50. West southwest wind 6 to 13 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles N Cooke City MT
 45.15°N 109.9°W (Elev. 11070 ft)
5:53 pm MDT Jun 18, 2026
9pm MDT Jun 18, 2026-6pm MDT Jun 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database