Water Temperature of the Sun River in Simms, MT

Current Water Temperature

44.2°F

Measurement Time: Tuesday, April 7, 2026, 8:30 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

30.9°F
Overcast
Overcast
23.8°F
28.9°F
82%
N 7.6 mph
10.8 mph
23.4°F
21.5°F
0 in
100%
9 mi
1017 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 55°F
L: 24°F
Partly Cloudy
Thu
H: 53°F
L: 29°F
Sunny
Fri
H: 63°F
L: 29°F
Patchy rain nearby
Sat
H: 62°F
L: 46°F
Patchy rain nearby
Sun
H: 58°F
L: 42°F

Air Quality

AQI: 1 - Good
PM2.5: 3.55 μg/m3
PM10: 3.85 μg/m3
Carbon Monoxide: 160.85 μg/m3
Nitrogen Dioxide: 3.75 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:29 PM
Sunset: 8:08 PM
Daylight: 13 hrs 15 mins
Moonrise: 2:39 AM
Moon Transit: 6:21 AM
Moonset: 10:05 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:51 AM - 8:21 AM
3:15 PM - 5:45 PM

Minor Periods

9:35 AM - 11:05 AM
2:09 AM - 3:39 AM

Action Rating: 2 out of 5

High Wind Warning issued April 7 at 1:00PM MDT until April 7 at 9:00PM MDT by NWS Great Falls MT

Effective: Tue April 7, 2026, 1:00 PM
Expires: Tue April 7, 2026, 9:00 PM

* WHAT...West winds 30 to 45 mph with gusts up to 70 mph expected. * WHERE...Portions of central and north central Montana. * WHEN...Until 9 PM MDT this evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Localized blowing dust will be possible in areas that have missed out on recent precipitation.

People are urged to secure loose objects that could be blown around or damaged by the wind.


High Wind Warning issued April 7 at 1:00PM MDT until April 7 at 9:00PM MDT by NWS Great Falls MT

Effective: Tue April 7, 2026, 1:00 PM
Expires: Tue April 7, 2026, 9:00 PM

* WHAT...West winds 35 to 50 mph with gusts up to 75 mph expected. * WHERE...Southern Rocky Mountain Front and adjacent foothills and plains. * WHEN...Until 9 PM MDT this evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. Patchy blowing dust will be possible.

Those operating high profile or light weight vehicles should consider delaying travel. People are urged to secure loose objects that could be blown around or damaged by the wind.
Wednesday, April 8, 2026

Weather Forecast

Sunny
55°F
23.9°F
38.3°F
50%
0 in
0%
3%
7.6 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 2.77 μg/m3
PM10: 3 μg/m3
Carbon Monoxide: 152.17 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 88.6 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:29 PM
Sunset: 8:08 PM
Daylight: 13 hrs 15 mins
Moonrise: 2:39 AM
Moon Transit: 6:21 AM
Moonset: 10:05 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:51 AM - 8:21 AM
3:15 PM - 5:45 PM

Minor Periods

9:35 AM - 11:05 AM
2:09 AM - 3:39 AM

Action Rating: 2 out of 5

Thursday, April 9, 2026

Weather Forecast

Partly Cloudy
53.1°F
28.9°F
40.1°F
56%
0 in
0%
0%
18.6 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 2.15 μg/m3
PM10: 2.27 μg/m3
Carbon Monoxide: 162.49 μg/m3
Nitrogen Dioxide: 2.5 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 77.8 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:29 PM
Sunset: 8:09 PM
Daylight: 13 hrs 19 mins
Moonrise: 3:23 AM
Moon Transit: 7:12 AM
Moonset: 11:06 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:42 AM - 9:12 AM
4:06 PM - 6:36 PM

Minor Periods

10:36 AM - 12:06 AM
2:53 AM - 4:23 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Sunny
63.1°F
29.1°F
46.9°F
52%
0 in
0%
0%
9.2 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 3.08 μg/m3
PM10: 3.55 μg/m3
Carbon Monoxide: 153.13 μg/m3
Nitrogen Dioxide: 3.63 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 84.64 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:28 PM
Sunset: 8:11 PM
Daylight: 13 hrs 22 mins
Moonrise: 3:59 AM
Moon Transit: 8:03 AM
Moonset: 12:14 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

7:33 AM - 10:03 AM
4:56 PM - 7:26 PM

Minor Periods

11:44 AM - 1:14 PM
3:29 AM - 4:59 AM

Action Rating: 2 out of 5

Saturday, April 11, 2026

Weather Forecast

Patchy rain nearby
61.7°F
45.6°F
53.4°F
47%
0.05 in
89%
0%
8.9 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 3.19 μg/m3
PM10: 4.05 μg/m3
Carbon Monoxide: 158.78 μg/m3
Nitrogen Dioxide: 3.76 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 82.4 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:28 PM
Sunset: 8:12 PM
Daylight: 13 hrs 25 mins
Moonrise: 4:27 AM
Moon Transit: 8:51 AM
Moonset: 1:25 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

8:21 AM - 10:51 AM
5:44 PM - 8:14 PM

Minor Periods

12:55 AM - 2:25 PM
3:57 AM - 5:27 AM

Action Rating: 3 out of 5

Sunday, April 12, 2026

Weather Forecast

Patchy rain nearby
57.9°F
42.3°F
48.5°F
75%
0.06 in
62%
0%
19 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.44 μg/m3
PM10: 2.74 μg/m3
Carbon Monoxide: 141.37 μg/m3
Nitrogen Dioxide: 1.48 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 98.85 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:28 PM
Sunset: 8:13 PM
Daylight: 13 hrs 29 mins
Moonrise: 4:49 AM
Moon Transit: 9:38 AM
Moonset: 2:39 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

6:30 PM - 9:00 PM
9:08 AM - 11:38 AM

Minor Periods

2:09 PM - 3:39 PM
4:19 AM - 5:49 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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