Water Temperature of the Sun River in Simms, MT

Current Water Temperature

48.9°F

Measurement Time: Sunday, March 22, 2026, 2:30 PM MDT

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

41.2°F
Clear
Clear
40.7°F
43.8°F
34%
WSW 2.2 mph
2.3 mph
39.8°F
12.4°F
0 in
0%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 57°F
L: 32°F
Sunny
Mon
H: 63°F
L: 34°F
Partly Cloudy
Tue
H: 62°F
L: 33°F
Sunny
Wed
H: 43°F
L: 29°F
Patchy rain nearby
Thu
H: 42°F
L: 28°F

Air Quality

AQI: 1 - Good
PM2.5: 5.85 μg/m3
PM10: 6.45 μg/m3
Carbon Monoxide: 165.85 μg/m3
Nitrogen Dioxide: 7.85 μg/m3
Sulphur Dioxide: 3.45 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:00 AM
Sunset: 7:43 PM
Daylight: 12 hrs 17 mins
Moonrise: 8:44 AM
Moon Transit: 4:48 PM
Moonset: 12:44 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

12:46 AM - 3:16 AM
4:18 PM - 6:48 PM

Minor Periods

8:14 AM - 9:44 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, March 22, 2026

Weather Forecast

Sunny
57°F
31.5°F
42.1°F
49%
0 in
0%
0%
10.7 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 3.27 μg/m3
PM10: 4.37 μg/m3
Carbon Monoxide: 148.77 μg/m3
Nitrogen Dioxide: 2.71 μg/m3
Sulphur Dioxide: 2.17 μg/m3
Ozone: 88.28 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:00 AM
Sunset: 7:43 PM
Daylight: 12 hrs 17 mins
Moonrise: 8:44 AM
Moon Transit: 4:48 PM
Moonset: 12:44 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

12:46 AM - 3:16 AM
4:18 PM - 6:48 PM

Minor Periods

8:14 AM - 9:44 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, March 23, 2026

Weather Forecast

Sunny
62.6°F
33.8°F
45.7°F
30%
0 in
0%
0%
8.5 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 5.11 μg/m3
PM10: 5.93 μg/m3
Carbon Monoxide: 156.85 μg/m3
Nitrogen Dioxide: 4.07 μg/m3
Sulphur Dioxide: 6.31 μg/m3
Ozone: 80.32 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 7:45 PM
Daylight: 12 hrs 21 mins
Moonrise: 9:19 AM
Moon Transit: 5:48 PM
Moonset: 1:10 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
5:18 PM - 7:48 PM

Minor Periods

8:49 AM - 10:19 AM
12:40 AM - 2:10 AM

Action Rating: 3 out of 5

Tuesday, March 24, 2026

Weather Forecast

Partly Cloudy
62.1°F
33.3°F
46.5°F
60%
0 in
0%
0%
18.1 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 5.73 μg/m3
PM10: 6.59 μg/m3
Carbon Monoxide: 151.25 μg/m3
Nitrogen Dioxide: 4.79 μg/m3
Sulphur Dioxide: 6 μg/m3
Ozone: 61.8 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:00 AM
Sunset: 7:46 PM
Daylight: 12 hrs 24 mins
Moonrise: 10:08 AM
Moon Transit: 6:51 PM
Moonset: 2:30 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

2:46 AM - 5:16 AM
6:21 PM - 8:51 PM

Minor Periods

9:38 AM - 11:08 AM
2:00 AM - 3:30 AM

Action Rating: 2 out of 5

Wednesday, March 25, 2026

Weather Forecast

Sunny
43.2°F
29.4°F
40.6°F
53%
0 in
0%
0%
29.1 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 3.22 μg/m3
PM10: 3.57 μg/m3
Carbon Monoxide: 138.43 μg/m3
Nitrogen Dioxide: 1.93 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 79.32 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:00 AM
Sunset: 7:48 PM
Daylight: 12 hrs 28 mins
Moonrise: 11:11 AM
Moon Transit: 7:54 PM
Moonset: 3:37 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

3:49 AM - 6:19 AM
7:24 PM - 9:54 PM

Minor Periods

10:41 AM - 12:11 AM
3:07 AM - 4:37 AM

Action Rating: 3 out of 5

Thursday, March 26, 2026

Weather Forecast

Patchy rain nearby
41.6°F
28.2°F
35.7°F
40%
0.01 in
79%
8%
22.6 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 1.87 μg/m3
PM10: 2.24 μg/m3
Carbon Monoxide: 140.57 μg/m3
Nitrogen Dioxide: 1.37 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 104.15 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:00 AM
Sunset: 7:49 PM
Daylight: 12 hrs 31 mins
Moonrise: 12:26 AM
Moon Transit: 8:53 PM
Moonset: 4:29 AM
Moon Phase: First Quarter
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

4:51 AM - 7:21 AM
8:23 PM - 10:53 PM

Minor Periods

11:56 AM - 1:26 PM
3:59 AM - 5:29 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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