Water Temperature of the Sun River in Simms, MT
Current Water Temperature
Measurement Time: Sunday, August 2, 2026, 5:30 PM MDT
Temperature Locations
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Station Name: Sun River at Simms MT
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 3,550 feet
Nearest Address:
99 Simms Fairfield Rd
Simms, MT 59477
Cascade County
GPS Coordinates: 47.50162778, -111.9319139
Nearby Water Temperatures
Missouri River, Wolf Creek, MT (35.2 mi)Birch Creek, Valier, MT (64 mi)
Camas Creek, White Sulphur Springs, MT (66.7 mi)
Marias River, Loma, MT (69.9 mi)
Missouri River, Toston, MT (96.7 mi)
Warm Springs Creek, Warm Springs, MT (99.8 mi)
Clark Fork, East Missoula, MT (103.4 mi)
Jefferson River, Three Forks, MT (112 mi)
South Fork Flathead River, Columbia Falls, MT (114 mi)
Jefferson River, Waterloo, MT (121.8 mi)
Jefferson River, Twin Bridges, MT (131.8 mi)
Ruby River, Twin Bridges, MT (139.1 mi)
Madison River, Norris, MT (139.7 mi)
Clark Fork River, Superior, MT (140.1 mi)
Big Hole River, Glen, MT (145.5 mi)
Weather for Simms, Montana
Current Weather

Five Day Weather Forecast

Mon
H: 66°F
L: 50°F

Tue
H: 77°F
L: 48°F

Wed
H: 88°F
L: 54°F

Thu
H: 96°F
L: 59°F

Fri
H: 100°F
L: 63°F
Air Quality
Nitrogen Dioxide: 3.7 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 62 μg/m3
Astronomical
Sun Transit: 1:33 PM
Sunset: 8:59 PM
Daylight: 14 hrs 50 mins
Moon Transit: 5:03 AM
Moonset: 11:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.6%
Best Times for Fishing or Hunting
Major Periods
4:33 AM - 7:03 AM1:54 PM - 4:24 PM
Minor Periods
10:20 PM - 11:50 PM11:19 AM - 12:49 AM
Action Rating: 2 out of 5
Air Quality Alert issued August 2 at 9:12AM MDT by NWS Great Falls MT
Effective: Sun August 2, 2026, 9:12 AM
Expires: Mon August 3, 2026, 9:00 AM
AQAMT The Montana Department of Environmental Quality has issued an air quality alert for Chouteau, Flathead, Glacier, Hill, Lake, Liberty, Lincoln, Pondera, Sanders, Teton, Toole counties in effect until 9AM on 08/03/2026 An Air Quality Alert means that particulates have been trending upwards and that an exceedance of the 24 hour National Ambient Air Quality Standard (NAAQS) has occurred or may occur in the near future. Elevated particulate levels from wildfire smoke As of 7AM on 08/02/2026, particulate levels in Libby are Unhealthy for Sensitive Groups. As of 7AM on 08/02/2026, particulate levels in Billings, Butte, Cut Bank, Dillon, Frenchtown, Great Falls, Hamilton, Havre, Helena, Lewistown, Malta, Missoula and Sleeping Giant are Moderate. When air quality is Unhealthy for Sensitive Groups... State and local health officials recommend that people with respiratory or heart disease, the elderly and children should limit prolonged exertion. When air quality is Moderate... State and local health officials recommend that unusually sensitive people should consider reducing prolonged or heavy exertion. For more information visit the Montana Department of Environmental Quality at http://todaysair.mtdeq.us
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.23 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 77.5 μg/m3
Astronomical
Sun Transit: 1:33 PM
Sunset: 8:59 PM
Daylight: 14 hrs 50 mins
Moon Transit: 5:03 AM
Moonset: 11:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.6%
Best Times for Fishing or Hunting
Major Periods
4:33 AM - 7:03 AM1:54 PM - 4:24 PM
Minor Periods
10:20 PM - 11:50 PM11:19 AM - 12:49 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.29 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 77.58 μg/m3
Astronomical
Sun Transit: 1:33 PM
Sunset: 8:57 PM
Daylight: 14 hrs 48 mins
Moon Transit: 5:49 AM
Moonset: 1:05 PM
Moon Phase: Last Quarter
Moon Illumination: 54.6%
Best Times for Fishing or Hunting
Major Periods
5:19 AM - 7:49 AM2:41 PM - 5:11 PM
Minor Periods
12:00 AM - 12:00 AM12:35 AM - 2:05 PM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.54 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 88.5 μg/m3
Astronomical
Sun Transit: 1:33 PM
Sunset: 8:56 PM
Daylight: 14 hrs 45 mins
Moon Transit: 6:38 AM
Moonset: 2:25 PM
Moon Phase: Last Quarter
Moon Illumination: 43.2%
Best Times for Fishing or Hunting
Major Periods
6:08 AM - 8:38 AM3:32 PM - 6:02 PM
Minor Periods
1:55 PM - 3:25 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.03 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 86.29 μg/m3
Astronomical
Sun Transit: 1:33 PM
Sunset: 8:54 PM
Daylight: 14 hrs 42 mins
Moon Transit: 7:32 AM
Moonset: 3:47 PM
Moon Phase: Last Quarter
Moon Illumination: 32.3%
Best Times for Fishing or Hunting
Major Periods
7:02 AM - 9:32 AM4:28 PM - 6:58 PM
Minor Periods
3:17 PM - 4:47 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 10.64 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 43.29 μg/m3
Astronomical
Sun Transit: 1:33 PM
Sunset: 8:53 PM
Daylight: 14 hrs 39 mins
Moon Transit: 8:31 AM
Moonset: 5:07 PM
Moon Phase: Last Quarter
Moon Illumination: 22.2%
Best Times for Fishing or Hunting
Major Periods
8:01 AM - 10:31 AM5:30 PM - 8:00 PM
Minor Periods
4:37 PM - 6:07 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
