Water Temperature of the Sun River in Simms, MT

Current Water Temperature

31.8°F

Measurement Time: Tuesday, January 6, 2026, 4:30 PM 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

39°F
Clear
Clear
30.4°F
33°F
52%
SW 15.4 mph
29.1 mph
22.3°F
24°F
0 in
0%
9 mi
998 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 37°F
L: 23°F
Cloudy
Thu
H: 36°F
L: 18°F
Sunny
Fri
H: 40°F
L: 17°F
Sunny
Sat
H: 40°F
L: 25°F
Partly Cloudy
Sun
H: 47°F
L: 31°F

Air Quality

PM2.5: 0.95 μg/m3
PM10: 0.95 μg/m3
Carbon Monoxide: 136.85 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:34 AM
Sunset: 4:54 PM
Daylight: 8 hrs 39 mins
Moonrise: 10:26 PM
Moon Transit: 4:06 AM
Moonset: 10:44 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

3:36 AM - 6:06 AM
12:57 AM - 3:27 PM

Minor Periods

9:56 PM - 11:26 PM
10:14 AM - 11:44 AM

Action Rating: 2 out of 5

High Wind Warning issued January 6 at 2:28AM MST until January 6 at 11:00PM MST by NWS Great Falls MT

Effective: Tue January 6, 2026, 2:28 AM
Expires: Tue January 6, 2026, 5:30 PM

* WHAT...Southwest winds 30 to 45 mph, with gusts up to 75 mph expected. * WHERE...The Rocky Mountain Front and adjacent foothills and plains. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Another period of gusty winds is likely to follow during the day Wednesday.

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


High Wind Warning issued January 6 at 1:04PM MST until January 6 at 11:00PM MST by NWS Great Falls MT

Effective: Tue January 6, 2026, 1:04 PM
Expires: Tue January 6, 2026, 11:00 PM

* WHAT...Southwest winds 30 to 45 mph, with gusts up to 75 mph expected. * WHERE...The Rocky Mountain Front and adjacent foothills and plains. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Another period of gusty winds is likely to follow during the day Wednesday. However, winds won't be as strong as today.

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


High Wind Warning issued January 6 at 2:28AM MST until January 6 at 11:00PM MST by NWS Great Falls MT

Effective: Tue January 6, 2026, 2:28 AM
Expires: Tue January 6, 2026, 5:30 PM

* WHAT...Southwest winds 30 to 40 mph, with gusts up to 60 mph expected. * WHERE...Cascade County below 5000ft and Judith Basin County and Judith Gap. * WHEN...From 8 AM this morning to 11 PM MST this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Another period of gusty winds is likely to follow during the day Wednesday.

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


High Wind Warning issued January 6 at 2:28AM MST until January 6 at 11:00PM MST by NWS Great Falls MT

Effective: Tue January 6, 2026, 2:28 AM
Expires: Tue January 6, 2026, 5:30 PM

* WHAT...West winds 30 to 40 mph, with gusts up to 60 mph expected. * WHERE...The Highwood, Little Belt, and Snowy Mountains, and Fergus County below 4500ft. * WHEN...From 8 AM this morning to 11 PM MST this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Another period of gusty winds is likely to follow during the day Wednesday.

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


High Wind Warning issued January 6 at 1:04PM MST until January 6 at 11:00PM MST by NWS Great Falls MT

Effective: Tue January 6, 2026, 1:04 PM
Expires: Tue January 6, 2026, 11:00 PM

* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph. * WHERE...Cascade County below 5000ft and Judith Basin County and Judith Gap. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Another period of gusty winds is likely to follow during the day Wednesday. However, winds won't be as strong as today.

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


High Wind Warning issued January 6 at 1:04PM MST until January 6 at 11:00PM MST by NWS Great Falls MT

Effective: Tue January 6, 2026, 1:04 PM
Expires: Tue January 6, 2026, 11:00 PM

* WHAT...West winds 25 to 35 mph with gusts up to 65 mph. * WHERE...The Highwood, Little Belt, and Snowy Mountains, and Fergus County below 4500ft. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Another period of gusty winds is likely to follow during the day Wednesday. However, winds won't be as strong as today.

People are urged to secure loose objects that could be blown around or damaged by the wind.
Wednesday, January 7, 2026

Weather Forecast

Sunny
36.5°F
23.3°F
31.5°F
60%
0 in
0%
0%
28 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.38 μg/m3
PM10: 1.62 μg/m3
Carbon Monoxide: 136.93 μg/m3
Nitrogen Dioxide: 1.54 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 81.56 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:34 AM
Sunset: 4:54 PM
Daylight: 8 hrs 39 mins
Moonrise: 10:26 PM
Moon Transit: 4:06 AM
Moonset: 10:44 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

3:36 AM - 6:06 AM
12:57 AM - 3:27 PM

Minor Periods

9:56 PM - 11:26 PM
10:14 AM - 11:44 AM

Action Rating: 2 out of 5

Thursday, January 8, 2026

Weather Forecast

Cloudy
36.1°F
18.1°F
24.8°F
61%
0 in
0%
0%
17.9 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 2.47 μg/m3
PM10: 3.32 μg/m3
Carbon Monoxide: 148.17 μg/m3
Nitrogen Dioxide: 1.77 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:34 AM
Sunset: 4:55 PM
Daylight: 8 hrs 41 mins
Moonrise: 11:36 PM
Moon Transit: 4:49 AM
Moonset: 10:59 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
1:40 PM - 4:10 PM

Minor Periods

12:00 AM - 12:00 AM
10:29 AM - 11:59 AM

Action Rating: 2 out of 5

Friday, January 9, 2026

Weather Forecast

Sunny
39.6°F
17.2°F
26.2°F
63%
0 in
0%
0%
13 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 1.54 μg/m3
PM10: 1.87 μg/m3
Carbon Monoxide: 148.59 μg/m3
Nitrogen Dioxide: 1.58 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 79.44 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:35 AM
Sunset: 4:56 PM
Daylight: 8 hrs 42 mins
Moonrise: 12:36 AM
Moon Transit: 5:31 AM
Moonset: 11:14 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

5:01 AM - 7:31 AM
2:21 PM - 4:51 PM

Minor Periods

10:44 AM - 12:14 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, January 10, 2026

Weather Forecast

Sunny
39.5°F
25.4°F
30.3°F
64%
0 in
0%
0%
13.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.77 μg/m3
PM10: 2.22 μg/m3
Carbon Monoxide: 146.8 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 90.85 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:35 AM
Sunset: 4:58 PM
Daylight: 8 hrs 44 mins
Moonrise: 12:46 AM
Moon Transit: 6:12 AM
Moonset: 11:29 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

5:42 AM - 8:12 AM
3:03 PM - 5:33 PM

Minor Periods

10:59 AM - 12:29 AM
12:16 AM - 1:46 AM

Action Rating: 3 out of 5

Sunday, January 11, 2026

Weather Forecast

Partly Cloudy
47.3°F
30.7°F
35.6°F
52%
0 in
0%
0%
23.3 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 8:13 AM
Sun Transit: 12:35 AM
Sunset: 4:59 PM
Daylight: 8 hrs 46 mins
Moonrise: 1:54 AM
Moon Transit: 6:54 AM
Moonset: 11:46 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
3:45 PM - 6:15 PM

Minor Periods

11:16 AM - 12:46 AM
1:24 AM - 2:54 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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