Water Temperature of the Sun River in Simms, MT

Current Water Temperature

31.8°F

Measurement Time: Friday, February 27, 2026, 12:30 AM 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

34°F
Sunny
Sunny
32.7°F
38.8°F
54%
E 2.2 mph
2.2 mph
30.3°F
15.4°F
0 in
0%
9 mi
1013 mbar
0.2

Five Day Weather Forecast

Sunny
Fri
H: 52°F
L: 33°F
Overcast
Sat
H: 32°F
L: 24°F
Sunny
Sun
H: 46°F
L: 20°F
Sunny
Mon
H: 50°F
L: 22°F
Partly Cloudy
Tue
H: 56°F
L: 31°F

Air Quality

AQI: 1 - Good
PM2.5: 1.85 μg/m3
PM10: 2.35 μg/m3
Carbon Monoxide: 142.85 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 111 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 12:40 AM
Sunset: 6:10 PM
Daylight: 10 hrs 59 mins
Moonrise: 1:37 PM
Moon Transit: 10:00 PM
Moonset: 5:29 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
12:00 AM - 12:00 AM

Minor Periods

1:07 PM - 2:37 PM
4:59 AM - 6:29 AM

Action Rating: 2 out of 5

High Wind Warning issued February 26 at 7:56PM MST until February 27 at 11:00AM MST by NWS Great Falls MT

Effective: Thu February 26, 2026, 7:56 PM
Expires: Fri February 27, 2026, 6:00 AM

* WHAT...West winds 35 to 45 mph, with gusts up to 70 mph. * WHERE...Portions of central and north central Montana. * WHEN...Until 11 AM MST Friday. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. Blowing dust could significantly reduce visibility at times.

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


High Wind Warning issued February 26 at 7:56PM MST until February 27 at 11:00AM MST by NWS Great Falls MT

Effective: Thu February 26, 2026, 7:56 PM
Expires: Fri February 27, 2026, 6:00 AM

* WHAT...West winds 45 to 65 mph, with gusts up to 100 mph. * WHERE...The Rocky Mountain Front and adjacent foothills and plains, and Eastern Glacier, Western Toole, and Central Pondera Counties. * WHEN...Until 11 AM MST Friday. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. Blowing dust could significantly reduce visibility at times.

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


High Wind Warning issued February 26 at 11:50PM MST until February 27 at 11:00AM MST by NWS Great Falls MT

Effective: Thu February 26, 2026, 11:50 PM
Expires: Fri February 27, 2026, 11:00 AM

* WHAT...West winds 30 to 40 mph with gusts up to 75 mph. * WHERE...The Rocky Mountain Front and adjacent foothills and plains, and Eastern Glacier, Western Toole, and Central Pondera Counties. * WHEN...Until 11 AM MST Friday. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. Blowing dust could significantly reduce visibility at times.

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


High Wind Warning issued February 26 at 11:50PM MST until February 27 at 11:00AM MST by NWS Great Falls MT

Effective: Thu February 26, 2026, 11:50 PM
Expires: Fri February 27, 2026, 11:00 AM

* WHAT...West winds 30 to 40 mph with gusts up to 70 mph. * WHERE...Snowy and Judith Mountains, Upper Blackfoot and MacDonald Pass, Fergus County below 4500ft, and Judith Basin County and Judith Gap. * WHEN...Until 11 AM MST Friday. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. Blowing dust could significantly reduce visibility at times.

People are urged to secure loose objects that could be blown around or damaged by the wind. Remember, a High Wind Warning means that there is at least an 80% chance of 40 mph sustained winds or 58 mph wind gusts occurring during the warning period.
Friday, February 27, 2026

Weather Forecast

Sunny
52.3°F
32.5°F
43.4°F
37%
0 in
0%
0%
19.9 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 1.87 μg/m3
PM10: 2.33 μg/m3
Carbon Monoxide: 146.29 μg/m3
Nitrogen Dioxide: 1.33 μg/m3
Sulphur Dioxide: 2.01 μg/m3
Ozone: 103.64 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 12:40 AM
Sunset: 6:10 PM
Daylight: 10 hrs 59 mins
Moonrise: 1:37 PM
Moon Transit: 10:00 PM
Moonset: 5:29 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
12:00 AM - 12:00 AM

Minor Periods

1:07 PM - 2:37 PM
4:59 AM - 6:29 AM

Action Rating: 2 out of 5

Saturday, February 28, 2026

Weather Forecast

Overcast
31.5°F
23.6°F
28.9°F
74%
0 in
0%
0%
13.4 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 2.85 μg/m3
PM10: 3.3 μg/m3
Carbon Monoxide: 155.49 μg/m3
Nitrogen Dioxide: 2.34 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 84.44 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:40 AM
Sunset: 6:12 PM
Daylight: 11 hrs 2 mins
Moonrise: 2:59 PM
Moon Transit: 10:54 PM
Moonset: 6:05 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

6:54 AM - 9:24 AM
12:00 AM - 12:00 AM

Minor Periods

2:29 PM - 3:59 PM
5:35 AM - 7:05 AM

Action Rating: 4 out of 5

Sunday, March 1, 2026

Weather Forecast

Sunny
46.4°F
19.6°F
31°F
70%
0 in
0%
0%
6.3 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 2.71 μg/m3
PM10: 3.16 μg/m3
Carbon Monoxide: 171.89 μg/m3
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 70.2 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:40 AM
Sunset: 6:13 PM
Daylight: 11 hrs 5 mins
Moonrise: 4:21 PM
Moon Transit: 11:44 PM
Moonset: 6:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

7:48 AM - 10:18 AM
12:00 AM - 12:00 AM

Minor Periods

3:51 PM - 5:21 PM
6:01 AM - 7:31 AM

Action Rating: 3 out of 5

Monday, March 2, 2026

Weather Forecast

Sunny
49.6°F
22.1°F
34.6°F
66%
0 in
0%
0%
8.5 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 5.14 μg/m3
Carbon Monoxide: 158.21 μg/m3
Nitrogen Dioxide: 3.55 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 72.96 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:39 AM
Sunset: 6:15 PM
Daylight: 11 hrs 9 mins
Moonrise: 5:39 PM
Moon Transit: 12:00 AM
Moonset: 6:51 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:37 AM - 11:07 AM

Minor Periods

5:09 PM - 6:39 PM
6:21 AM - 7:51 AM

Action Rating: 4 out of 5

Tuesday, March 3, 2026

Weather Forecast

Partly Cloudy
56.3°F
31.1°F
42.2°F
52%
0 in
0%
0%
14.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3 μg/m3
PM10: 3.61 μg/m3
Carbon Monoxide: 166 μg/m3
Nitrogen Dioxide: 3.7 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 60.08 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:39 AM
Sunset: 6:16 PM
Daylight: 11 hrs 12 mins
Moonrise: 6:54 PM
Moon Transit: 12:31 AM
Moonset: 7:08 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
9:23 AM - 11:53 AM

Minor Periods

6:24 PM - 7:54 PM
6:38 AM - 8:08 AM

Action Rating: 5 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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