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

Current Water Temperature

54.5°F

Measurement Time: Monday, September 14, 2026, 3:45 AM MDT

Temperature Locations

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Local Points of Interest

Hungry Horse, MT

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

Nearest Address:
Columbia Falls, MT 59912
Flathead County

GPS Coordinates: 48.35657778, -114.0378583

Nearby Water Temperatures

Birch Creek, Valier, MT (78.9 mi)
Clark Fork River, Superior, MT (89.4 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 mi)
Kootenai River, Copeland, ID (114.4 mi)
Kootenai River, Porthill, ID (121 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)

Weather for Columbia Falls, Montana

Current Weather

48°F
Chance Light Rain
Chance Light Rain
89%
WSW 3 mph
45°F

Weather Forecast

Chance Light Rain
Today
55°F - Chance Light Rain
Chance Light Rain then Mostly Cloudy
Tonight
45°F - Chance Light Rain then Mostly Cloudy
Cloudy
Tuesday
60°F - Cloudy
Slight Chance Light Rain
Tuesday Night
45°F - Slight Chance Light Rain
Sunny
Wednesday
66°F - Sunny
Clear
Wednesday Night
45°F - Clear
Sunny
Thursday
72°F - Sunny
Mostly Clear
Thursday Night
47°F - Mostly Clear
Mostly Sunny
Friday
70°F - Mostly Sunny
Partly Cloudy then Slight Chance Light Rain
Friday Night
47°F - Partly Cloudy then Slight Chance Light Rain
Mostly Sunny
Saturday
67°F - Mostly Sunny
Mostly Clear
Saturday Night
47°F - Mostly Clear
Sunny
Sunday
69°F - Sunny
Mostly Clear
Sunday Night
47°F - Mostly Clear

Astronomical

Sunrise: 7:12 AM
Sun Transit: 1:31 PM
Sunset: 7:50 PM
Daylight: 12 hrs 39 mins
Moonrise: 11:34 AM
Moon Transit: 4:17 PM
Moonset: 8:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
3:47 PM - 6:17 PM

Minor Periods

8:20 PM - 9:50 PM
11:04 AM - 12:34 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:12 AM
Sun Transit: 1:31 PM
Sunset: 7:50 PM
Daylight: 12 hrs 39 mins
Moonrise: 11:34 AM
Moon Transit: 4:17 PM
Moonset: 8:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
3:47 PM - 6:17 PM

Minor Periods

8:20 PM - 9:50 PM
11:04 AM - 12:34 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:12 AM
Sun Transit: 1:31 PM
Sunset: 7:50 PM
Daylight: 12 hrs 39 mins
Moonrise: 11:34 AM
Moon Transit: 4:17 PM
Moonset: 8:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
3:47 PM - 6:17 PM

Minor Periods

8:20 PM - 9:50 PM
11:04 AM - 12:34 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:13 AM
Sun Transit: 1:31 PM
Sunset: 7:48 PM
Daylight: 12 hrs 35 mins
Moonrise: 12:48 AM
Moon Transit: 5:04 PM
Moonset: 9:14 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

12:52 AM - 3:22 AM
4:34 PM - 7:04 PM

Minor Periods

8:44 PM - 10:14 PM
12:18 AM - 1:48 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:13 AM
Sun Transit: 1:31 PM
Sunset: 7:48 PM
Daylight: 12 hrs 35 mins
Moonrise: 12:48 AM
Moon Transit: 5:04 PM
Moonset: 9:14 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

12:52 AM - 3:22 AM
4:34 PM - 7:04 PM

Minor Periods

8:44 PM - 10:14 PM
12:18 AM - 1:48 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:14 AM
Sun Transit: 1:30 PM
Sunset: 7:46 PM
Daylight: 12 hrs 32 mins
Moonrise: 1:58 PM
Moon Transit: 5:54 PM
Moonset: 9:46 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

1:40 AM - 4:10 AM
5:24 PM - 7:54 PM

Minor Periods

9:16 PM - 10:46 PM
1:28 PM - 2:58 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:14 AM
Sun Transit: 1:30 PM
Sunset: 7:46 PM
Daylight: 12 hrs 32 mins
Moonrise: 1:58 PM
Moon Transit: 5:54 PM
Moonset: 9:46 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

1:40 AM - 4:10 AM
5:24 PM - 7:54 PM

Minor Periods

9:16 PM - 10:46 PM
1:28 PM - 2:58 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:16 AM
Sun Transit: 1:30 PM
Sunset: 7:44 PM
Daylight: 12 hrs 28 mins
Moonrise: 3:02 PM
Moon Transit: 6:45 PM
Moonset: 10:26 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
6:15 PM - 8:45 PM

Minor Periods

9:56 PM - 11:26 PM
2:32 PM - 4:02 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:16 AM
Sun Transit: 1:30 PM
Sunset: 7:44 PM
Daylight: 12 hrs 28 mins
Moonrise: 3:02 PM
Moon Transit: 6:45 PM
Moonset: 10:26 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
6:15 PM - 8:45 PM

Minor Periods

9:56 PM - 11:26 PM
2:32 PM - 4:02 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:17 AM
Sun Transit: 1:30 PM
Sunset: 7:42 PM
Daylight: 12 hrs 25 mins
Moonrise: 3:58 PM
Moon Transit: 7:36 PM
Moonset: 11:17 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

3:21 AM - 5:51 AM
7:06 PM - 9:36 PM

Minor Periods

12:00 AM - 12:00 AM
3:28 PM - 4:58 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:17 AM
Sun Transit: 1:30 PM
Sunset: 7:42 PM
Daylight: 12 hrs 25 mins
Moonrise: 3:58 PM
Moon Transit: 7:36 PM
Moonset: 11:17 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

3:21 AM - 5:51 AM
7:06 PM - 9:36 PM

Minor Periods

12:00 AM - 12:00 AM
3:28 PM - 4:58 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:19 AM
Sun Transit: 1:29 PM
Sunset: 7:40 PM
Daylight: 12 hrs 21 mins
Moonrise: 4:43 PM
Moon Transit: 8:27 PM
Moonset: 12:17 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

4:13 AM - 6:43 AM
7:57 PM - 10:27 PM

Minor Periods

4:13 PM - 5:43 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:19 AM
Sun Transit: 1:29 PM
Sunset: 7:40 PM
Daylight: 12 hrs 21 mins
Moonrise: 4:43 PM
Moon Transit: 8:27 PM
Moonset: 12:17 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

4:13 AM - 6:43 AM
7:57 PM - 10:27 PM

Minor Periods

4:13 PM - 5:43 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:20 AM
Sun Transit: 1:29 PM
Sunset: 7:38 PM
Daylight: 12 hrs 18 mins
Moonrise: 5:17 PM
Moon Transit: 9:17 PM
Moonset: 12:17 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
8:47 PM - 11:17 PM

Minor Periods

4:47 PM - 6:17 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:20 AM
Sun Transit: 1:29 PM
Sunset: 7:38 PM
Daylight: 12 hrs 18 mins
Moonrise: 5:17 PM
Moon Transit: 9:17 PM
Moonset: 12:17 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
8:47 PM - 11:17 PM

Minor Periods

4:47 PM - 6:17 PM
12:00 AM - 12:00 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.

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