Water Temperature of the Sun River in Simms, MT

Current Water Temperature

35.4°F

Measurement Time: Monday, February 9, 2026, 11:30 PM 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

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)
Big Hole River, Glen, MT (145.5 mi)
Big Hole River, Wisdom, MT (148.9 mi)

Weather for Simms, Montana

Current Weather

28.9°F
Clear
Clear
21.3°F
25.9°F
69%
SW 7.6 mph
14.4 mph
17.2°F
15.5°F
0 in
0%
9 mi
1019 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 46°F
L: 25°F
Sunny
Wed
H: 45°F
L: 25°F
Mist
Thu
H: 45°F
L: 21°F
Sunny
Fri
H: 45°F
L: 29°F
Partly Cloudy
Sat
H: 47°F
L: 34°F

Air Quality

AQI: 1 - Good
PM2.5: 1.55 μg/m3
PM10: 1.85 μg/m3
Carbon Monoxide: 146.85 μg/m3
Nitrogen Dioxide: 1.15 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 88 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 12:41 AM
Sunset: 5:44 PM
Daylight: 10 hrs 3 mins
Moonrise: 3:04 AM
Moon Transit: 7:05 AM
Moonset: 11:02 AM
Moon Phase: Last Quarter
Moon Illumination: 30.3%

Best Times for Fishing or Hunting

Major Periods

6:35 AM - 9:05 AM
3:59 PM - 6:29 PM

Minor Periods

10:32 AM - 12:02 AM
2:34 AM - 4:04 AM

Action Rating: 2 out of 5

Tuesday, February 10, 2026

Weather Forecast

Sunny
46.2°F
25°F
34.1°F
54%
0 in
0%
0%
13 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.59 μg/m3
PM10: 1.91 μg/m3
Carbon Monoxide: 145.25 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 82.64 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 12:41 AM
Sunset: 5:44 PM
Daylight: 10 hrs 3 mins
Moonrise: 3:04 AM
Moon Transit: 7:05 AM
Moonset: 11:02 AM
Moon Phase: Last Quarter
Moon Illumination: 30.3%

Best Times for Fishing or Hunting

Major Periods

6:35 AM - 9:05 AM
3:59 PM - 6:29 PM

Minor Periods

10:32 AM - 12:02 AM
2:34 AM - 4:04 AM

Action Rating: 2 out of 5

Wednesday, February 11, 2026

Weather Forecast

Sunny
45°F
24.8°F
33.2°F
67%
0 in
0%
0%
6.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.06 μg/m3
PM10: 3.63 μg/m3
Carbon Monoxide: 155.45 μg/m3
Nitrogen Dioxide: 5.45 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 60.12 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 12:41 AM
Sunset: 5:45 PM
Daylight: 10 hrs 6 mins
Moonrise: 4:09 AM
Moon Transit: 7:56 AM
Moonset: 11:40 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

7:26 AM - 9:56 AM
4:50 PM - 7:20 PM

Minor Periods

11:10 AM - 12:40 AM
3:39 AM - 5:09 AM

Action Rating: 3 out of 5

Thursday, February 12, 2026

Weather Forecast

Mist
45.3°F
21°F
32.3°F
72%
0 in
0%
0%
14.8 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.73 μg/m3
PM10: 4.66 μg/m3
Carbon Monoxide: 164.85 μg/m3
Nitrogen Dioxide: 5.45 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 66.4 μg/m3

Astronomical

Sunrise: 7:38 AM
Sun Transit: 12:41 AM
Sunset: 5:47 PM
Daylight: 10 hrs 9 mins
Moonrise: 5:06 AM
Moon Transit: 8:48 AM
Moonset: 12:31 AM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%

Best Times for Fishing or Hunting

Major Periods

8:18 AM - 10:48 AM
5:42 PM - 8:12 PM

Minor Periods

12:01 AM - 1:31 PM
4:36 AM - 6:06 AM

Action Rating: 3 out of 5

Friday, February 13, 2026

Weather Forecast

Sunny
45.2°F
29.1°F
38.2°F
52%
0 in
0%
0%
13.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.13 μg/m3
PM10: 4.11 μg/m3
Carbon Monoxide: 150.07 μg/m3
Nitrogen Dioxide: 3.04 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 77.2 μg/m3

Astronomical

Sunrise: 7:36 AM
Sun Transit: 12:41 AM
Sunset: 5:48 PM
Daylight: 10 hrs 12 mins
Moonrise: 5:54 AM
Moon Transit: 9:40 AM
Moonset: 1:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.8%

Best Times for Fishing or Hunting

Major Periods

6:34 PM - 9:04 PM
9:10 AM - 11:40 AM

Minor Periods

1:01 PM - 2:31 PM
5:24 AM - 6:54 AM

Action Rating: 2 out of 5

Saturday, February 14, 2026

Weather Forecast

Partly Cloudy
47°F
33.8°F
37.6°F
56%
0 in
0%
0%
16.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.22 μg/m3
PM10: 4.28 μg/m3
Carbon Monoxide: 156.6 μg/m3
Nitrogen Dioxide: 3.03 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 79.46 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 12:41 AM
Sunset: 5:50 PM
Daylight: 10 hrs 16 mins
Moonrise: 6:32 AM
Moon Transit: 10:32 AM
Moonset: 2:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

7:26 PM - 9:56 PM
10:02 AM - 12:32 AM

Minor Periods

2:10 PM - 3:40 PM
6:02 AM - 7:32 AM

Action Rating: 3 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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