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

Current Water Temperature

56.3°F

Measurement Time: Monday, September 21, 2026, 4:45 PM 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

56°F
Mostly Clear
Mostly Clear
63%
SSE 1 mph
44°F

Weather Forecast

Mostly Clear
Tonight
48°F - Mostly Clear
Mostly Sunny
Tuesday
75°F - Mostly Sunny
Partly Cloudy
Tuesday Night
48°F - Partly Cloudy
Sunny
Wednesday
70°F - Sunny
Partly Cloudy
Wednesday Night
47°F - Partly Cloudy
Mostly Sunny
Thursday
76°F - Mostly Sunny
Mostly Cloudy then Slight Chance Light Rain
Thursday Night
49°F - Mostly Cloudy then Slight Chance Light Rain
Chance Light Rain
Friday
68°F - Chance Light Rain
Chance Light Rain
Friday Night
44°F - Chance Light Rain
Slight Chance Light Rain then Partly Sunny
Saturday
56°F - Slight Chance Light Rain then Partly Sunny
Mostly Cloudy
Saturday Night
41°F - Mostly Cloudy
Partly Sunny
Sunday
58°F - Partly Sunny
Mostly Cloudy
Sunday Night
43°F - Mostly Cloudy
Partly Sunny
Monday
58°F - Partly Sunny

Astronomical

Sunrise: 7:21 AM
Sun Transit: 1:29 PM
Sunset: 7:35 PM
Daylight: 12 hrs 14 mins
Moonrise: 5:44 PM
Moon Transit: 10:05 PM
Moonset: 1:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

5:53 AM - 8:23 AM
12:00 AM - 12:00 AM

Minor Periods

5:14 PM - 6:44 PM
12:54 AM - 2:24 AM

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: 7:21 AM
Sun Transit: 1:29 PM
Sunset: 7:35 PM
Daylight: 12 hrs 14 mins
Moonrise: 5:44 PM
Moon Transit: 10:05 PM
Moonset: 1:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

5:53 AM - 8:23 AM
12:00 AM - 12:00 AM

Minor Periods

5:14 PM - 6:44 PM
12:54 AM - 2:24 AM

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: 7:23 AM
Sun Transit: 1:28 PM
Sunset: 7:33 PM
Daylight: 12 hrs 11 mins
Moonrise: 6:06 PM
Moon Transit: 10:51 PM
Moonset: 2:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
12:00 AM - 12:00 AM

Minor Periods

5:36 PM - 7:06 PM
2:06 AM - 3:36 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: 7:23 AM
Sun Transit: 1:28 PM
Sunset: 7:33 PM
Daylight: 12 hrs 11 mins
Moonrise: 6:06 PM
Moon Transit: 10:51 PM
Moonset: 2:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
12:00 AM - 12:00 AM

Minor Periods

5:36 PM - 7:06 PM
2:06 AM - 3:36 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: 7:24 AM
Sun Transit: 1:28 PM
Sunset: 7:31 PM
Daylight: 12 hrs 7 mins
Moonrise: 6:24 PM
Moon Transit: 11:36 PM
Moonset: 3:48 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

7:25 AM - 9:55 AM
12:00 AM - 12:00 AM

Minor Periods

5:54 PM - 7:24 PM
3:18 AM - 4:48 AM

Action Rating: 4 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: 7:24 AM
Sun Transit: 1:28 PM
Sunset: 7:31 PM
Daylight: 12 hrs 7 mins
Moonrise: 6:24 PM
Moon Transit: 11:36 PM
Moonset: 3:48 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

7:25 AM - 9:55 AM
12:00 AM - 12:00 AM

Minor Periods

5:54 PM - 7:24 PM
3:18 AM - 4:48 AM

Action Rating: 4 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: 7:26 AM
Sun Transit: 1:28 PM
Sunset: 7:29 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:40 PM
Moon Transit: 12:00 AM
Moonset: 5:01 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:10 AM - 10:40 AM

Minor Periods

6:10 PM - 7:40 PM
4:31 AM - 6:01 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: 7:26 AM
Sun Transit: 1:28 PM
Sunset: 7:29 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:40 PM
Moon Transit: 12:00 AM
Moonset: 5:01 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:10 AM - 10:40 AM

Minor Periods

6:10 PM - 7:40 PM
4:31 AM - 6:01 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: 7:27 AM
Sun Transit: 1:27 PM
Sunset: 7:27 PM
Daylight: 12 hrs mins
Moonrise: 6:55 PM
Moon Transit: 12:20 AM
Moonset: 6:15 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:54 AM - 11:24 AM

Minor Periods

6:25 PM - 7:55 PM
5:45 AM - 7:15 AM

Action Rating: 5 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: 7:27 AM
Sun Transit: 1:27 PM
Sunset: 7:27 PM
Daylight: 12 hrs mins
Moonrise: 6:55 PM
Moon Transit: 12:20 AM
Moonset: 6:15 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:54 AM - 11:24 AM

Minor Periods

6:25 PM - 7:55 PM
5:45 AM - 7:15 AM

Action Rating: 5 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: 7:28 AM
Sun Transit: 1:27 PM
Sunset: 7:25 PM
Daylight: 11 hrs 57 mins
Moonrise: 7:10 PM
Moon Transit: 6:33 AM
Moonset: 7:30 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

6:03 AM - 8:33 AM
6:03 AM - 8:33 AM

Minor Periods

6:40 PM - 8:10 PM
7:00 AM - 8:30 AM

Action Rating: 4 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: 7:28 AM
Sun Transit: 1:27 PM
Sunset: 7:25 PM
Daylight: 11 hrs 57 mins
Moonrise: 7:10 PM
Moon Transit: 6:33 AM
Moonset: 7:30 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

6:03 AM - 8:33 AM
6:03 AM - 8:33 AM

Minor Periods

6:40 PM - 8:10 PM
7:00 AM - 8:30 AM

Action Rating: 4 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: 7:30 AM
Sun Transit: 1:27 PM
Sunset: 7:23 PM
Daylight: 11 hrs 53 mins
Moonrise: 7:28 PM
Moon Transit: 12:00 AM
Moonset: 8:48 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:25 AM - 12:55 AM

Minor Periods

6:58 PM - 8:28 PM
8:18 AM - 9:48 AM

Action Rating: 4 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: 7:30 AM
Sun Transit: 1:27 PM
Sunset: 7:23 PM
Daylight: 11 hrs 53 mins
Moonrise: 7:28 PM
Moon Transit: 12:00 AM
Moonset: 8:48 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:25 AM - 12:55 AM

Minor Periods

6:58 PM - 8:28 PM
8:18 AM - 9:48 AM

Action Rating: 4 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: 7:31 AM
Sun Transit: 1:26 PM
Sunset: 7:21 PM
Daylight: 11 hrs 50 mins
Moonrise: 7:49 PM
Moon Transit: 2:39 AM
Moonset: 10:09 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

2:09 AM - 4:39 AM
11:15 AM - 1:45 PM

Minor Periods

7:19 PM - 8:49 PM
9:39 AM - 11:09 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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