Butte, MT 59702 Weather

Silver Bow County8:27 AM MDT45.91°N, 112.64°W

Current conditions

Clear
30°
Clear
Feels like 30°
High 60°·Low 42°
WindCalm
Humidity93%
Dew point28°
Pressure30.19 inHg
Visibility10 mi
Cloud cover21%
UV index0 Low
Sunrise7:56 AM
Sunset6:36 PM

Observed at Butte, Bert Mooney Airport · 32 min ago

Forecast

10-day

  • Today

    Sunny, with a high near 60. South southwest wind around 9 mph.

  • Tonight

    Mostly clear, with a low around 42. South wind 6 to 12 mph.

  • Thursday

    Mostly sunny, with a high near 61. South wind 9 to 13 mph, with gusts as high as 23 mph.

National Weather Service forecast updated 6 hrs ago.

Hourly

Hourly forecast
  1. Now Sunny 39°
  2. 9 AM Sunny 41°
  3. 10 AM Sunny 46°
  4. 11 AM Mostly Sunny 50°
  5. 12 PM Mostly Sunny 54°
  6. 1 PM Sunny 57°
  7. 2 PM Sunny 58°
  8. 3 PM Sunny 60°
  9. 4 PM Mostly Sunny 60°
  10. 5 PM Mostly Sunny 59°
  11. 6 PM Mostly Clear 57°
  12. 7 PM Mostly Clear 55°
  13. 8 PM Mostly Clear 51°
  14. 9 PM Partly Cloudy 50°
  15. 10 PM Partly Cloudy 48°
  16. 11 PM Mostly Clear 47°
  17. Thu12 AM Mostly Clear 46°
  18. 1 AM Mostly Clear 45°
  19. 2 AM Mostly Clear 45°
  20. 3 AM Mostly Clear 44°
  21. 4 AM Mostly Clear 44°
  22. 5 AM Mostly Clear 43°
  23. 6 AM Sunny 43°
  24. 7 AM Sunny 42°

10-day forecast

Details
  1. TodayOct 21 Sunny Sunny42°60°
  2. ThuOct 22 Mostly Sunny Mostly Sunny73%40°61°
  3. FriOct 23 Rain then Rain And Snow Rain then Rain And Snow99%29°44°
  4. SatOct 24 Mostly Sunny Mostly Sunny29°41°
  5. SunOct 25 Mostly Sunny Mostly Sunny10%29°45°
  6. MonOct 26 Mostly Sunny Mostly Sunny16%30°46°
  7. TueOct 27 Slight Chance Light Snow Slight Chance Light Snow23%30°46°
  8. WedOct 28 Snow showers Snow showers0.06 in23°33°
  9. ThuOct 29 Partly cloudy Partly cloudy23°44°
  10. FriOct 30 Partly cloudy Partly cloudy28°45°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Butte

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Air quality

12
Good
Fine particles (PM2.5)

Air quality is satisfactory, and air pollution poses little or no risk.

Dillon, MT reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:56 AM
Sunset 6:36 PM
Daylight 10 h 39 min (−3 min 4 s tomorrow)
Waxing Gibbous · 78% lit
Moonrise 4:31 PM Moonset 2:46 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low52° / 25°
Record high75° (2003)
Record low9° (1996)
Wettest0.73 in (1974)
Month to date1.16 in (normal 0.57 in)

Butte Bert Mooney Ap, records since 1894. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in MSO, issued 5 hrs ago

Discussion

KEY MESSAGES:

- Mild daytime temperatures through Thursday.

- Patchy valley fog around sunrise each morning.

- Significant weather change coming Thursday night into Friday.

Mild day-time temperatures will continue across the Northern Rockies through Thursday as high pressure remains in control. Stable conditions under the ridge are promoting the development of daily valley inversions and trapped cold air, with patchy dense fog. Afternoon temperatures will run around 10 degrees above normal for this time of year.

A significant change remains on track late Thursday into Friday, as a low pressure system and cold front tracks across the region. Colder temperatures and widespread precipitation, focused along and south of the Interstate 90 corridor and along the divide in northwest Montana are the main story. Precipitation amounts have trended higher over the last 48 hours, as model guidance has come into stronger consensus for a mid-level low to track along the divide in southwest Montana by Friday morning. Widespread precipitation will wrap around the west-northwest area of this low pointing towards the highest precipitation amounts (0.75-1.50 inches) along the divide across mountain ranges in southwest Montana. As discussed previously, most of the precipitation will fall as rain ahead of the cold front, limiting the potential for winter weather impacts. Snow levels will fall to around 5,000 feet Friday and lower over the weekend as shower activity begins to decrease. Therefore, forecast snow amounts will be generally under an inch across the region and above 5,000 feet. The exception is across higher peaks along the divide, where several inches of snow may fall above 7,000 feet.

Aviation

High pressure will continue to bring stable conditions. Valley inversions and cold air pools will set the stage for patchy areas of valley fog, particularly near large bodies of water and river systems. The primary period to watch will be from 21/1200-1500Z, including KGPI and KMSO. The probability of dense fog impacts at these terminals is generally less than 10 percent, but can not be ruled out.

Mso Watches

MT...None. ID...None.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.