Water Temperature of the Sun River in Simms, MT

Current Water Temperature

69.3°F

Measurement Time: Friday, August 22, 2025, 8:30 AM 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 / 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

72°F
Sunny
Conditions: Sunny
Humidity: 30%
Feels Like: 74.8°F
Wind: NE 8.7 mph
Wind Gusts: 10 mph
Pressure: 30.37 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 6.2

Five Day Weather Forecast

Partly Cloudy
Fri
H: 75°F
L: 55°F
Sunny
Sat
H: 80°F
L: 47°F
Sunny
Sun
H: 81°F
L: 48°F
Sunny
Mon
H: 87°F
L: 46°F
Sunny
Tue
H: 90°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 6.11 μg/m3
PM10: 6.29 μg/m3
Carbon Monoxide: 271.95 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:30 PM
Sunset: 8:27 PM
Daylight: 13 hrs 53 mins
Moonrise: 5:40 AM
Moon Transit: 1:12 PM
Moonset: 8:27 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:42 AM - 3:12 PM

Minor Periods

7:57 PM - 9:27 PM
5:10 AM - 6:40 AM

Action Rating: 5 out of 5

Friday, August 22, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 63.5°F
Average Humidity: 51%
Chance of Rain: 0%
Wind: 11.9 mph
UV Index: 1.9

Air Quality

AQI: 1 - Good
PM2.5: 7.64 μg/m3
PM10: 7.9 μg/m3
Carbon Monoxide: 250.34 μg/m3
Nitrogen Dioxide: 3.73 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 80.72 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:30 PM
Sunset: 8:27 PM
Daylight: 13 hrs 53 mins
Moonrise: 5:40 AM
Moon Transit: 1:12 PM
Moonset: 8:27 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:42 AM - 3:12 PM

Minor Periods

7:57 PM - 9:27 PM
5:10 AM - 6:40 AM

Action Rating: 5 out of 5

Saturday, August 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 64°F
Average Humidity: 51%
Chance of Rain: 0%
Wind: 13.9 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 6.96 μg/m3
PM10: 7.16 μg/m3
Carbon Monoxide: 265.22 μg/m3
Nitrogen Dioxide: 6.93 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 74.24 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:30 PM
Sunset: 8:25 PM
Daylight: 13 hrs 49 mins
Moonrise: 6:56 AM
Moon Transit: 1:57 PM
Moonset: 8:44 PM
Moon Phase: New
Moon Illumination: 1.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:27 PM - 3:57 PM

Minor Periods

8:14 PM - 9:44 PM
6:26 AM - 7:56 AM

Action Rating: 5 out of 5

Sunday, August 24, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 65.2°F
Average Humidity: 49%
Chance of Rain: 0%
Wind: 10.3 mph
UV Index: 1.9

Air Quality

AQI: 1 - Good
PM2.5: 7.36 μg/m3
PM10: 7.56 μg/m3
Carbon Monoxide: 264.55 μg/m3
Nitrogen Dioxide: 5.32 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:29 PM
Sunset: 8:23 PM
Daylight: 13 hrs 46 mins
Moonrise: 8:08 AM
Moon Transit: 2:40 PM
Moonset: 8:58 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:10 PM - 4:40 PM

Minor Periods

8:28 PM - 9:58 PM
7:38 AM - 9:08 AM

Action Rating: 4 out of 5

Monday, August 25, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 67.8°F
Average Humidity: 42%
Chance of Rain: 0%
Wind: 11.6 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 8.33 μg/m3
PM10: 8.55 μg/m3
Carbon Monoxide: 267.58 μg/m3
Nitrogen Dioxide: 7.03 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 70.36 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:29 PM
Sunset: 8:21 PM
Daylight: 13 hrs 43 mins
Moonrise: 9:18 AM
Moon Transit: 3:21 PM
Moonset: 9:12 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:51 PM - 5:21 PM

Minor Periods

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

Action Rating: 4 out of 5

Tuesday, August 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 73.6°F
Average Humidity: 26%
Chance of Rain: 0%
Wind: 14.8 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 6.99 μg/m3
PM10: 7.23 μg/m3
Carbon Monoxide: 271.24 μg/m3
Nitrogen Dioxide: 11.94 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 65.54 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:29 PM
Sunset: 8:19 PM
Daylight: 13 hrs 40 mins
Moonrise: 10:26 AM
Moon Transit: 4:02 PM
Moonset: 9:26 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:11 AM - 2:41 AM
3:32 PM - 6:02 PM

Minor Periods

8:56 PM - 10:26 PM
9:56 AM - 11:26 AM

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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