Water Temperature of the Sun River in Simms, MT

Current Water Temperature

41.0°F

Measurement Time: Sunday, November 23, 2025, 9:30 AM MST

Temperature Locations

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Sun River

Station Name: Sun River at Simms MT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 3,550 feet / 1,082 meters

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 (64.0 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 (112.0 mi)
South Fork Flathead River, Columbia Falls, MT (114.0 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)
Big Hole River, Glen, MT (145.5 mi)
Big Hole River, Wisdom, MT (148.9 mi)

Weather for Simms, Montana

Current Weather

45°F
Clear
Conditions: Clear
Humidity: 47%
Feels Like: 39°F
Wind: WSW 12.3 mph
Wind Gusts: 20.4 mph
Pressure: 29.92 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Sun
H: 55°F
L: 38°F
Overcast
Mon
H: 44°F
L: 27°F
Partly Cloudy
Tue
H: 38°F
L: 20°F
Partly Cloudy
Wed
H: 42°F
L: 24°F
Heavy snow
Thu
H: 27°F
L: 23°F

Air Quality

AQI: 1 - Good
PM2.5: 3.15 μg/m3
PM10: 3.25 μg/m3
Carbon Monoxide: 133.85 μg/m3
Nitrogen Dioxide: 4.15 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 56 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:14 AM
Sunset: 4:44 PM
Daylight: 8 hrs 59 mins
Moonrise: 11:20 AM
Moon Transit: 3:07 PM
Moonset: 6:59 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:37 PM - 5:07 PM

Minor Periods

6:29 PM - 7:59 PM
10:50 AM - 12:20 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued November 23 at 12:25AM MST until November 24 at 11:00PM MST by NWS Great Falls MT

Effective: Sun November 23, 2025, 12:25 AM
Expires: Sun November 23, 2025, 5:00 PM

* WHAT...Snow expected. Total snow accumulations of 2 to 6 inches, with localized amounts approaching 9 inches over the highest terrain of the Continental Divide, Big Belt, and Little Belt Mountains. Winds gusting as high as 50 mph. * WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and Highwood Mountains, Bears Paw Mountains and Southern Blaine, and Southern Rocky Mountain Front. * WHEN...From 11 PM Sunday to 11 PM MST Monday. * IMPACTS...Plan on slippery road conditions.

Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website.
Sunday, November 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 45.1°F
Average Humidity: 48%
Chance of Rain: 0%
Wind: 15.4 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.54 μg/m3
PM10: 2.66 μg/m3
Carbon Monoxide: 140.41 μg/m3
Nitrogen Dioxide: 3.97 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 64.16 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:14 AM
Sunset: 4:44 PM
Daylight: 8 hrs 59 mins
Moonrise: 11:20 AM
Moon Transit: 3:07 PM
Moonset: 6:59 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:37 PM - 5:07 PM

Minor Periods

6:29 PM - 7:59 PM
10:50 AM - 12:20 AM

Action Rating: 3 out of 5

Monday, November 24, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 36.8°F
Average Humidity: 66%
Chance of Rain: 0%
Wind: 19.2 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.8 μg/m3
PM10: 2.95 μg/m3
Carbon Monoxide: 137.97 μg/m3
Nitrogen Dioxide: 3.87 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 64.64 μg/m3

Astronomical

Sunrise: 7:46 AM
Sun Transit: 12:14 AM
Sunset: 4:43 PM
Daylight: 8 hrs 57 mins
Moonrise: 11:57 AM
Moon Transit: 3:58 PM
Moonset: 8:06 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
3:28 PM - 5:58 PM

Minor Periods

7:36 PM - 9:06 PM
11:27 AM - 12:57 AM

Action Rating: 2 out of 5

Tuesday, November 25, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 28.2°F
Average Humidity: 64%
Chance of Rain: 0%
Wind: 8.1 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 2.38 μg/m3
PM10: 3.07 μg/m3
Carbon Monoxide: 143.49 μg/m3
Nitrogen Dioxide: 3.26 μg/m3
Sulphur Dioxide: 2.87 μg/m3
Ozone: 70.04 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:14 AM
Sunset: 4:42 PM
Daylight: 8 hrs 55 mins
Moonrise: 12:26 AM
Moon Transit: 4:47 PM
Moonset: 9:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

12:52 AM - 3:22 AM
4:17 PM - 6:47 PM

Minor Periods

8:48 PM - 10:18 PM
11:56 AM - 1:26 PM

Action Rating: 3 out of 5

Wednesday, November 26, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 30.5°F
Average Humidity: 71%
Chance of Rain: 0%
Wind: 4.9 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 4.95 μg/m3
PM10: 6.01 μg/m3
Carbon Monoxide: 166.81 μg/m3
Nitrogen Dioxide: 13.76 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 43.56 μg/m3

Astronomical

Sunrise: 7:49 AM
Sun Transit: 12:15 AM
Sunset: 4:42 PM
Daylight: 8 hrs 53 mins
Moonrise: 12:49 AM
Moon Transit: 5:35 PM
Moonset: 10:32 PM
Moon Phase: First Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

1:40 AM - 4:10 AM
5:05 PM - 7:35 PM

Minor Periods

10:02 PM - 11:32 PM
12:19 AM - 1:49 PM

Action Rating: 3 out of 5

Thursday, November 27, 2025

Weather Forecast

Conditions: Heavy snow
Average Temperature: 24.7°F
Average Humidity: 88%
Chance of Rain: 88%
Wind: 5.4 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 6.23 μg/m3
PM10: 7.45 μg/m3
Carbon Monoxide: 214.08 μg/m3
Nitrogen Dioxide: 14.36 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 31.92 μg/m3

Astronomical

Sunrise: 7:50 AM
Sun Transit: 12:15 AM
Sunset: 4:41 PM
Daylight: 8 hrs 51 mins
Moonrise: 1:08 PM
Moon Transit: 6:20 PM
Moonset: 11:46 PM
Moon Phase: First Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
5:50 PM - 8:20 PM

Minor Periods

12:00 AM - 12:00 AM
12:38 AM - 2:08 PM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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