Water Temperature of the Sun River in Simms, MT

Current Water Temperature

73.9°F

Measurement Time: Sunday, July 12, 2026, 4:30 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)
Clark Fork River, Superior, MT (140.1 mi)
Big Hole River, Glen, MT (145.5 mi)

Weather for Simms, Montana

Current Weather

71.1°F
Clear
Clear
71.1°F
74.9°F
32%
S 2.5 mph
5.2 mph
74.3°F
40.4°F
0 in
0%
9 mi
1019 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 97°F
L: 64°F
Sunny
Mon
H: 93°F
L: 68°F
Patchy rain nearby
Tue
H: 88°F
L: 64°F
Patchy rain nearby
Wed
H: 80°F
L: 63°F
Sunny
Thu
H: 88°F
L: 64°F

Air Quality

AQI: 1 - Good
PM2.5: 2.1 μg/m3
PM10: 2.4 μg/m3
Carbon Monoxide: 95 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:33 PM
Sunset: 9:23 PM
Daylight: 15 hrs 40 mins
Moonrise: 3:07 AM
Moon Transit: 11:51 AM
Moonset: 8:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

8:51 PM - 11:21 PM
11:21 AM - 1:51 PM

Minor Periods

8:04 PM - 9:34 PM
2:37 AM - 4:07 AM

Action Rating: 3 out of 5

Sunday, July 12, 2026

Weather Forecast

Sunny
97°F
64°F
80.5°F
32%
0 in
0%
0%
18.1 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 1.98 μg/m3
PM10: 2.35 μg/m3
Carbon Monoxide: 100.21 μg/m3
Nitrogen Dioxide: 3.9 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 79.83 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:33 PM
Sunset: 9:23 PM
Daylight: 15 hrs 40 mins
Moonrise: 3:07 AM
Moon Transit: 11:51 AM
Moonset: 8:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

8:51 PM - 11:21 PM
11:21 AM - 1:51 PM

Minor Periods

8:04 PM - 9:34 PM
2:37 AM - 4:07 AM

Action Rating: 3 out of 5

Monday, July 13, 2026

Weather Forecast

Sunny
92.9°F
68°F
78.7°F
32%
0.01 in
17%
0%
14.5 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 2.85 μg/m3
PM10: 3.47 μg/m3
Carbon Monoxide: 97.13 μg/m3
Nitrogen Dioxide: 3.59 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 72.29 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:33 PM
Sunset: 9:22 PM
Daylight: 15 hrs 38 mins
Moonrise: 4:19 AM
Moon Transit: 12:57 AM
Moonset: 9:25 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:27 AM - 2:57 PM

Minor Periods

8:55 PM - 10:25 PM
3:49 AM - 5:19 AM

Action Rating: 5 out of 5

Tuesday, July 14, 2026

Weather Forecast

Patchy rain nearby
88°F
64.3°F
74.2°F
56%
0.12 in
57%
0%
19.2 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 4.7 μg/m3
PM10: 5.83 μg/m3
Carbon Monoxide: 100.67 μg/m3
Nitrogen Dioxide: 3.85 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 70.88 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:33 PM
Sunset: 9:21 PM
Daylight: 15 hrs 36 mins
Moonrise: 5:42 AM
Moon Transit: 2:01 PM
Moonset: 10:03 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:31 PM - 4:01 PM

Minor Periods

9:33 PM - 11:03 PM
5:12 AM - 6:42 AM

Action Rating: 4 out of 5

Wednesday, July 15, 2026

Weather Forecast

Patchy rain nearby
80.1°F
63°F
70°F
76%
0.14 in
66%
0%
8.1 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 3.34 μg/m3
PM10: 4 μg/m3
Carbon Monoxide: 101.71 μg/m3
Nitrogen Dioxide: 2.86 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 73.25 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:33 PM
Sunset: 9:21 PM
Daylight: 15 hrs 35 mins
Moonrise: 7:10 AM
Moon Transit: 3:00 PM
Moonset: 10:30 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:30 PM - 5:00 PM

Minor Periods

10:00 PM - 11:30 PM
6:40 AM - 8:10 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
88.4°F
64°F
75.3°F
63%
0 in
4%
0%
14.5 mph
9.4


Air Quality

AQI: 1 - Good
PM2.5: 2.77 μg/m3
PM10: 3.19 μg/m3
Carbon Monoxide: 102.95 μg/m3
Nitrogen Dioxide: 2.91 μg/m3
Sulphur Dioxide: 0.24 μg/m3
Ozone: 74.42 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:33 PM
Sunset: 9:20 PM
Daylight: 15 hrs 33 mins
Moonrise: 8:36 AM
Moon Transit: 3:52 PM
Moonset: 10:51 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:22 PM - 5:52 PM

Minor Periods

10:21 PM - 11:51 PM
8:06 AM - 9:36 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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