Water Temperature of the Sun River in Simms, MT

Current Water Temperature

36.7°F

Measurement Time: Wednesday, November 26, 2025, 12:30 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 / 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

34°F
Overcast
Conditions: Overcast
Humidity: 82%
Feels Like: 30.1°F
Wind: NE 4.3 mph
Wind Gusts: 8.3 mph
Pressure: 30.24 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Patchy moderate snow
Wed
H: 46°F
L: 25°F
Overcast
Thu
H: 38°F
L: 28°F
Moderate snow
Fri
H: 25°F
L: 15°F
Partly Cloudy
Sat
H: 24°F
L: 1°F
Freezing fog
Sun
H: 20°F
L: -6°F

Air Quality

AQI: 1 - Good
PM2.5: 4.75 μg/m3
PM10: 4.95 μg/m3
Carbon Monoxide: 179.85 μg/m3
Nitrogen Dioxide: 15.25 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 40 μg/m3

Astronomical

Sunrise: 7:49 AM
Sun Transit: 12:15 AM
Sunset: 4:42 PM
Daylight: 8 hrs 53 mins
Moonrise: 12:49 AM
Moon Transit: 5:35 PM
Moonset: 10:32 PM
Moon Phase: First Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

1:40 AM - 4:10 AM
5:05 PM - 7:35 PM

Minor Periods

10:02 PM - 11:32 PM
12:19 AM - 1:49 PM

Action Rating: 3 out of 5

Winter Storm Watch issued November 26 at 12:48AM MST until November 28 at 5:00PM MST by NWS Great Falls MT

Effective: Wed November 26, 2025, 12:48 AM
Expires: Wed November 26, 2025, 5:15 PM

* WHAT...Heavy snow possible with gusty north winds developing Thursday night through Friday morning. Total snow accumulations between 4 and 7 inches possible. * WHERE...A portion of north central Montana. * WHEN...From Thursday afternoon through Friday afternoon. * IMPACTS...Travel could be very difficult. Blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Light snow is expected to develop Thursday afternoon and intensify overnight before tapering off Friday afternoon. Gusty north winds developing late Thursday night through Friday morning could create areas of blowing and drifting snow. The most impactful period of winter weather is likely early Friday morning.

Monitor the latest forecasts for updates on this situation.


Winter Storm Watch issued November 26 at 9:33AM MST until November 28 at 5:00PM MST by NWS Great Falls MT

Effective: Wed November 26, 2025, 9:33 AM
Expires: Wed November 26, 2025, 4:00 PM

* WHAT...Heavy snow possible with gusty north winds developing Thursday night through Friday morning. Total snow accumulations between 4 and 7 inches possible. * WHERE...A portion of north central Montana. * WHEN...From Thursday afternoon through Friday afternoon. * IMPACTS...Travel could be very difficult. Blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Light snow is expected to develop Thursday afternoon and intensify overnight before tapering off Friday afternoon. Gusty north winds developing late Thursday night through Friday morning could create areas of blowing and drifting snow. The most impactful period of winter weather is likely early Friday morning.

Monitor the latest forecasts for updates on this situation. Remember, a Winter Storm Watch means that there is at least a 50% chance of impactful winter weather conditions during the watch period.


Winter Storm Watch issued November 26 at 12:49PM MST until November 28 at 5:00PM MST by NWS Great Falls MT

Effective: Wed November 26, 2025, 12:49 PM
Expires: Thu November 27, 2025, 4:00 AM

* WHAT...Heavy snow possible with gusty north winds developing Thursday night through Friday morning. Total snow accumulations between 4 and 7 inches possible. * WHERE...A portion of north central Montana. * WHEN...From Thursday afternoon through Friday afternoon. * IMPACTS...Travel could be very difficult. Blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Light snow is expected to develop Thursday afternoon and intensify overnight before tapering off Friday afternoon. Gusty north winds developing late Thursday night through Friday morning could create areas of blowing and drifting snow. The most impactful period of winter weather is likely early Friday morning.

Monitor the latest forecasts for updates on this situation. Remember, a Winter Storm Watch means that there is at least a 50% chance of impactful winter weather conditions during the watch period.


Winter Storm Watch issued November 26 at 12:49PM MST until November 28 at 5:00PM MST by NWS Great Falls MT

Effective: Wed November 26, 2025, 12:49 PM
Expires: Thu November 27, 2025, 4:00 AM

* WHAT...Heavy snow possible with gusty north to northeast winds developing Friday morning. Total snow accumulations between 4 and 7 inches possible. * WHERE...Upper Blackfoot and MacDonald Pass. * WHEN...From late Thursday night through Friday afternoon. * IMPACTS...Travel could be very difficult, especially over mountain passes. Blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Light snow is expected to develop Thursday evening and intensify after midnight before tapering off Friday afternoon. Gusty north to northeast winds developing early Friday morning could create areas of blowing and drifting snow.

Monitor the latest forecasts for updates on this situation. Remember, a Winter Storm Watch means that there is at least a 50% chance of impactful winter weather conditions during the watch period.
Wednesday, November 26, 2025

Weather Forecast

Conditions: Patchy moderate snow
Average Temperature: 32.4°F
Average Humidity: 66%
Chance of Rain: 83%
Wind: 6.5 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 3.32 μg/m3
PM10: 3.92 μg/m3
Carbon Monoxide: 166.09 μg/m3
Nitrogen Dioxide: 7.69 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 57.96 μg/m3

Astronomical

Sunrise: 7:49 AM
Sun Transit: 12:15 AM
Sunset: 4:42 PM
Daylight: 8 hrs 53 mins
Moonrise: 12:49 AM
Moon Transit: 5:35 PM
Moonset: 10:32 PM
Moon Phase: First Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

1:40 AM - 4:10 AM
5:05 PM - 7:35 PM

Minor Periods

10:02 PM - 11:32 PM
12:19 AM - 1:49 PM

Action Rating: 3 out of 5

Thursday, November 27, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 31.7°F
Average Humidity: 83%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 4.45 μg/m3
PM10: 4.71 μg/m3
Carbon Monoxide: 187.29 μg/m3
Nitrogen Dioxide: 11.97 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 49.4 μg/m3

Astronomical

Sunrise: 7:50 AM
Sun Transit: 12:15 AM
Sunset: 4:41 PM
Daylight: 8 hrs 51 mins
Moonrise: 1:08 PM
Moon Transit: 6:20 PM
Moonset: 11:46 PM
Moon Phase: First Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
5:50 PM - 8:20 PM

Minor Periods

12:00 AM - 12:00 AM
12:38 AM - 2:08 PM

Action Rating: 2 out of 5

Friday, November 28, 2025

Weather Forecast

Conditions: Moderate snow
Average Temperature: 20.7°F
Average Humidity: 87%
Chance of Rain: 72%
Wind: 14.8 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.3 μg/m3
PM10: 2.35 μg/m3
Carbon Monoxide: 173.21 μg/m3
Nitrogen Dioxide: 4.57 μg/m3
Sulphur Dioxide: 2.67 μg/m3
Ozone: 55.28 μg/m3

Astronomical

Sunrise: 7:51 AM
Sun Transit: 12:15 AM
Sunset: 4:40 PM
Daylight: 8 hrs 49 mins
Moonrise: 1:25 PM
Moon Transit: 12:00 AM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:12 AM - 5:42 AM

Minor Periods

12:55 AM - 2:25 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, November 29, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 10.5°F
Average Humidity: 83%
Chance of Rain: 0%
Wind: 4 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 4.97 μg/m3
PM10: 4.98 μg/m3
Carbon Monoxide: 168.69 μg/m3
Nitrogen Dioxide: 8.19 μg/m3
Sulphur Dioxide: 2.31 μg/m3
Ozone: 46.16 μg/m3

Astronomical

Sunrise: 7:53 AM
Sun Transit: 12:16 AM
Sunset: 4:40 PM
Daylight: 8 hrs 47 mins
Moonrise: 1:41 PM
Moon Transit: 7:12 PM
Moonset: 1:01 AM
Moon Phase: First Quarter
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

6:42 PM - 9:12 PM
6:42 PM - 9:12 PM

Minor Periods

1:11 PM - 2:41 PM
12:31 AM - 2:01 AM

Action Rating: 2 out of 5

Sunday, November 30, 2025

Weather Forecast

Conditions: Freezing fog
Average Temperature: 5.8°F
Average Humidity: 90%
Chance of Rain: 0%
Wind: 6.3 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 7.81 μg/m3
PM10: 7.85 μg/m3
Carbon Monoxide: 236.16 μg/m3
Nitrogen Dioxide: 14.71 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 47.92 μg/m3

Astronomical

Sunrise: 7:54 AM
Sun Transit: 12:16 AM
Sunset: 4:39 PM
Daylight: 8 hrs 45 mins
Moonrise: 1:58 PM
Moon Transit: 8:40 PM
Moonset: 2:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

4:44 AM - 7:14 AM
8:10 PM - 10:40 PM

Minor Periods

1:28 PM - 2:58 PM
1:49 AM - 3:19 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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