Water Temperature of the Sun River in Simms, MT

Current Water Temperature

41.5°F

Measurement Time: Thursday, March 26, 2026, 2:30 AM MDT

Temperature Locations

View Nearby Locations     View All Montana Locations     View Locations Near Me

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

26.4°F
Sunny
Sunny
15.4°F
31°F
90%
W 12.8 mph
19.5 mph
23.2°F
15.3°F
0 in
25%
9 mi
1019 mbar
0.2

Five Day Weather Forecast

Sunny
Thu
H: 45°F
L: 25°F
Sunny
Fri
H: 60°F
L: 23°F
Cloudy
Sat
H: 61°F
L: 29°F
Partly Cloudy
Sun
H: 55°F
L: 31°F
Sunny
Mon
H: 64°F
L: 40°F

Air Quality

AQI: 1 - Good
PM2.5: 2.75 μg/m3
PM10: 3.85 μg/m3
Carbon Monoxide: 136.85 μg/m3
Nitrogen Dioxide: 1.05 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 114 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

Winter Weather Advisory issued March 26 at 3:00AM MDT until March 26 at 9:00AM MDT by NWS Great Falls MT

Effective: Thu March 26, 2026, 3:00 AM
Expires: Thu March 26, 2026, 9:00 AM

* WHAT...Snow expected. Total snow accumulations 2 to 4 inches, with a few isolated areas near 6 inches. * WHERE...The Highwood, Little Belt, Judith, and Snowy Mountains, Judith Basin County and Judith Gap, and Fergus County below 4500ft. * WHEN...Until 9 AM MDT this morning. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock.


Special Weather Statement issued March 26 at 5:40AM MDT by NWS Great Falls MT

Effective: Thu March 26, 2026, 5:40 AM
Expires: Thu March 26, 2026, 7:00 AM

A band of light snow will move through the Bozeman, Big Sky and Bridger areas this morning. Visibility could be reduced to around one mile at times. Most of the snow accumulations at lower elevations will be on grassy areas, but some slush snow accumulations are possible on mountain passes, such as Bozeman Pass on Interstate 90. Those traveling through this portion of the state this morning should be alert for quickly changing road condtions and reduced visibility.


Thursday, March 26, 2026

Weather Forecast

Sunny
44.6°F
24.6°F
37°F
43%
0 in
0%
0%
22.1 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 2.81 μg/m3
PM10: 3.59 μg/m3
Carbon Monoxide: 138.97 μg/m3
Nitrogen Dioxide: 1.36 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 103.4 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

Friday, March 27, 2026

Weather Forecast

Sunny
59.5°F
23.2°F
39.7°F
44%
0 in
0%
0%
16.1 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 2.95 μg/m3
PM10: 3.83 μg/m3
Carbon Monoxide: 164.53 μg/m3
Nitrogen Dioxide: 4.06 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 78.64 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:00 AM
Sunset: 7:51 PM
Daylight: 12 hrs 35 mins
Moonrise: 1:45 PM
Moon Transit: 9:48 PM
Moonset: 5:07 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

5:49 AM - 8:19 AM
9:18 PM - 11:48 PM

Minor Periods

1:15 PM - 2:45 PM
4:37 AM - 6:07 AM

Action Rating: 2 out of 5

Saturday, March 28, 2026

Weather Forecast

Cloudy
60.8°F
28.8°F
44.8°F
49%
0 in
0%
0%
17 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 2.62 μg/m3
PM10: 3.57 μg/m3
Carbon Monoxide: 151.29 μg/m3
Nitrogen Dioxide: 4.33 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 79.96 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:00 AM
Sunset: 7:52 PM
Daylight: 12 hrs 38 mins
Moonrise: 3:05 PM
Moon Transit: 10:39 PM
Moonset: 5:35 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

6:43 AM - 9:13 AM
12:00 AM - 12:00 AM

Minor Periods

2:35 PM - 4:05 PM
5:05 AM - 6:35 AM

Action Rating: 2 out of 5

Sunday, March 29, 2026

Weather Forecast

Partly Cloudy
54.7°F
30.9°F
41.4°F
56%
0 in
0%
0%
12.1 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 2.82 μg/m3
PM10: 3.75 μg/m3
Carbon Monoxide: 164.67 μg/m3
Nitrogen Dioxide: 3.31 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 85.44 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 1:32 PM
Sunset: 7:54 PM
Daylight: 12 hrs 42 mins
Moonrise: 4:23 PM
Moon Transit: 11:26 PM
Moonset: 5:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%

Best Times for Fishing or Hunting

Major Periods

7:32 AM - 10:02 AM
12:00 AM - 12:00 AM

Minor Periods

3:53 PM - 5:23 PM
5:26 AM - 6:56 AM

Action Rating: 4 out of 5

Monday, March 30, 2026

Weather Forecast

Sunny
64.3°F
39.7°F
51°F
48%
0 in
0%
0%
23.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.27 μg/m3
PM10: 4.78 μg/m3
Carbon Monoxide: 165.26 μg/m3
Nitrogen Dioxide: 3.55 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 76.46 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 1:32 PM
Sunset: 7:55 PM
Daylight: 12 hrs 45 mins
Moonrise: 5:37 PM
Moon Transit: 12:00 AM
Moonset: 6:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:18 AM - 10:48 AM

Minor Periods

5:07 PM - 6:37 PM
5:44 AM - 7:14 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.

Webcams Near Simms, MT

Sponsored Content