Water Temperature of the South Fork Flathead River in Columbia Falls, MT

Current Water Temperature

40.5°F

Measurement Time: Sunday, November 30, 2025, 8:45 PM MST

Temperature Locations

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Local Points of Interest

Hungry Horse, MT

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South Fork Flathead River

Station Name: S F Flathead River nr Columbia Falls MT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 3,091 feet / 942 meters

Nearest Address:
Columbia Falls, MT 59912
Flathead County

GPS Coordinates: 48.35657778, -114.0378583

Nearby Water Temperatures

Birch Creek, Valier, MT (78.9 mi)
Kootenai River, Troy, MT (93.7 mi)
Clark Fork, East Missoula, MT (102.4 mi)
Kootenai River, Bonners Ferry, ID (106.7 mi)
Kootenai River, Bonners Ferry, ID (111.3 mi)
Sun River, Simms, MT (114.0 mi)
Kootenai River, Copeland, ID (114.4 mi)
Kootenai River, Porthill, ID (121.0 mi)
North Fork Clearwater River, Pierce, ID (128.1 mi)
Missouri River, Wolf Creek, MT (133.2 mi)
Pend Oreille River, Metaline Falls, WA (157.3 mi)
Pend Oreille River, Metaline Falls, WA (157.6 mi)
Warm Springs Creek, Warm Springs, MT (161.4 mi)
Marias River, Loma, MT (161.8 mi)
Orofino River, Orofino, ID (166.1 mi)

Weather for Columbia Falls, Montana

Current Weather

19.6°F
Overcast
Conditions: Overcast
Humidity: 86%
Feels Like: 16.7°F
Wind: ENE 2.2 mph
Wind Gusts: 4.7 mph
Pressure: 30.28 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Mon
H: 32°F
L: 11°F
Moderate or heavy snow showers
Tue
H: 30°F
L: 15°F
Mist
Wed
H: 26°F
L: 10°F
Moderate snow
Thu
H: 28°F
L: 9°F
Heavy snow
Fri
H: 32°F
L: 11°F

Air Quality

AQI: 1 - Good
PM2.5: 2.45 μg/m3
PM10: 2.45 μg/m3
Carbon Monoxide: 204.85 μg/m3
Nitrogen Dioxide: 6.25 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 8:07 AM
Sun Transit: 12:25 AM
Sunset: 4:44 PM
Daylight: 8 hrs 37 mins
Moonrise: 2:24 PM
Moon Transit: 9:40 PM
Moonset: 3:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

5:25 AM - 7:55 AM
9:10 PM - 11:40 PM

Minor Periods

1:54 PM - 3:24 PM
3:21 AM - 4:51 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued November 30 at 12:05PM MST until December 2 at 12:00PM MST by NWS Missoula MT

Effective: Sun November 30, 2025, 12:05 PM
Expires: Mon December 1, 2025, 2:15 PM

* WHAT...Snow expected. There is a likelihood of minor to moderate winter weather impacts. Total snow accumulations between 2 and 5 inches, except 5 to 8 inches Bigfork to Many Lakes Region. Daytime melting combined with sub-freezing temperatures expected after dark will create a potential for black ice. Conditions will become slicker Monday night. * WHERE...Flathead Valley, Mission Valley, Polson, and Flathead Lake. * WHEN...From 2 PM Monday to noon MST Tuesday. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Monday evening and Tuesday morning commutes, especially over higher passes.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Winter Weather Advisory issued November 30 at 12:05PM MST until December 2 at 12:00PM MST by NWS Missoula MT

Effective: Sun November 30, 2025, 12:05 PM
Expires: Mon December 1, 2025, 2:15 PM

* WHAT...Snow expected. There is a likelihood of minor to moderate winter weather impacts. Total snow accumulations between 2 and 5 inches. Daytime melting combined with sub-freezing temperatures expected after dark will create a potential for black ice. Conditions will become slicker Monday night. * WHERE...Highway 56 Bull Lake Road, Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, and Highway 93 Eureka to Whitefish. * WHEN...From 1 PM Monday to noon MST Tuesday. * IMPACTS...For MINOR winter weather impacts, expect a few inconveniences to normal activities. For MODERATE winter weather impacts, expect disruptions to normal activities. Use caution while driving. Winter traveling conditions. The hazardous conditions could impact the Monday evening and Tuesday morning commutes.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.


Winter Weather Advisory issued November 30 at 12:05PM MST until December 2 at 5:00PM MST by NWS Missoula MT

Effective: Sun November 30, 2025, 12:05 PM
Expires: Mon December 1, 2025, 2:15 PM

* WHAT...Snow expected. There is a likelihood of minor to moderate winter weather impacts. Total snow accumulations between 3 and 7 inches, except up to 10 inches in the Seeley-Swan Valley. Daytime melting combined with sub-freezing temperatures expected after dark will create a potential for black ice. Conditions will become slicker Monday night. * WHERE...Essex, Marias Pass, I-90 East Missoula to Bearmouth, Polebridge, Highway 83 Bigfork to Swan Lake, Highway 200 Bonner to Greenough, Glacier National Park, Bad Rock Canyon, and Highway 83 Seeley Lake to Condon. * WHEN...From 2 PM Monday to 5 PM MST Tuesday. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Monday evening and Tuesday morning commutes, especially over higher passes. * ADDITIONAL DETAILS...Between 10 and 16 inches of total snow accumulation is possible in the Mission and Swan Ranges, while the Whitefish and Lewis Ranges could receive 5 to 10 inches.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Monday, December 1, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 20.4°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 4 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 3.53 μg/m3
PM10: 3.67 μg/m3
Carbon Monoxide: 194.37 μg/m3
Nitrogen Dioxide: 6.27 μg/m3
Sulphur Dioxide: 2.16 μg/m3
Ozone: 68.08 μg/m3

Astronomical

Sunrise: 8:07 AM
Sun Transit: 12:25 AM
Sunset: 4:44 PM
Daylight: 8 hrs 37 mins
Moonrise: 2:24 PM
Moon Transit: 9:40 PM
Moonset: 3:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

5:25 AM - 7:55 AM
9:10 PM - 11:40 PM

Minor Periods

1:54 PM - 3:24 PM
3:21 AM - 4:51 AM

Action Rating: 3 out of 5

Tuesday, December 2, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 25.3°F
Average Humidity: 95%
Chance of Rain: 75%
Wind: 2.5 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 3.57 μg/m3
PM10: 3.77 μg/m3
Carbon Monoxide: 160.69 μg/m3
Nitrogen Dioxide: 3.14 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 70.4 μg/m3

Astronomical

Sunrise: 8:08 AM
Sun Transit: 12:25 AM
Sunset: 4:43 PM
Daylight: 8 hrs 35 mins
Moonrise: 2:48 PM
Moon Transit: 10:37 PM
Moonset: 5:18 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

6:18 AM - 8:48 AM
12:00 AM - 12:00 AM

Minor Periods

2:18 PM - 3:48 PM
4:48 AM - 6:18 AM

Action Rating: 2 out of 5

Wednesday, December 3, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 18.1°F
Average Humidity: 95%
Chance of Rain: 83%
Wind: 3.6 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.29 μg/m3
PM10: 2.37 μg/m3
Carbon Monoxide: 218.61 μg/m3
Nitrogen Dioxide: 4.16 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 65.04 μg/m3

Astronomical

Sunrise: 8:09 AM
Sun Transit: 12:26 AM
Sunset: 4:43 PM
Daylight: 8 hrs 34 mins
Moonrise: 3:18 PM
Moon Transit: 11:40 PM
Moonset: 6:49 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
12:00 AM - 12:00 AM

Minor Periods

2:48 PM - 4:18 PM
6:19 AM - 7:49 AM

Action Rating: 4 out of 5

Thursday, December 4, 2025

Weather Forecast

Conditions: Moderate snow
Average Temperature: 18.3°F
Average Humidity: 97%
Chance of Rain: 64%
Wind: 4.3 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.07 μg/m3
PM10: 2.07 μg/m3
Carbon Monoxide: 162.42 μg/m3
Nitrogen Dioxide: 3.26 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 69.04 μg/m3

Astronomical

Sunrise: 8:11 AM
Sun Transit: 12:26 AM
Sunset: 4:43 PM
Daylight: 8 hrs 32 mins
Moonrise: 4:02 PM
Moon Transit: 12:00 AM
Moonset: 8:18 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:21 AM - 10:51 AM

Minor Periods

3:32 PM - 5:02 PM
7:48 AM - 9:18 AM

Action Rating: 6 out of 5

Friday, December 5, 2025

Weather Forecast

Conditions: Heavy snow
Average Temperature: 23.5°F
Average Humidity: 96%
Chance of Rain: 82%
Wind: 4.5 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 3.3 μg/m3
PM10: 3.3 μg/m3
Carbon Monoxide: 211.69 μg/m3
Nitrogen Dioxide: 5.03 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 58.85 μg/m3

Astronomical

Sunrise: 8:12 AM
Sun Transit: 12:27 AM
Sunset: 4:42 PM
Daylight: 8 hrs 31 mins
Moonrise: 5:03 PM
Moon Transit: 12:46 AM
Moonset: 9:38 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

12:16 AM - 2:46 AM
9:30 AM - 12:00 AM

Minor Periods

4:33 PM - 6:03 PM
9:08 AM - 10:38 AM

Action Rating: 4 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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