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

Current Water Temperature

56.5°F

Measurement Time: Friday, September 4, 2026, 12:45 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

61°F

Conditions: Partly Cloudy

Humidity: 54%

Wind: 0 mph

Dew Point: 44°F

Weather Forecast

Tonight
44°F - Mostly Cloudy then Slight Chance Light Rain

Saturday
69°F - Chance Rain then Partly Sunny

Saturday Night
47°F - Showers And Thunderstorms Likely then Light Rain Likely

Sunday
70°F - Chance Light Rain then Chance Showers And Thunderstorms

Sunday Night
46°F - Showers And Thunderstorms Likely then Light Rain Likely

Labor Day
62°F - Rain Likely then Showers And Thunderstorms

Monday Night
46°F - Showers And Thunderstorms Likely then Light Rain Likely

Tuesday
64°F - Chance Light Rain

Tuesday Night
45°F - Partly Cloudy

Wednesday
71°F - Mostly Sunny

Wednesday Night
47°F - Partly Cloudy

Thursday
74°F - Mostly Sunny

Thursday Night
48°F - Slight Chance Light Rain

Friday
70°F - Chance Rain

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:35 PM
Sunset: 8:11 PM
Daylight: 13 hrs 13 mins

Moonrise: 11:48 PM
Moon Transit: 7:34 AM
Moonset: 4:23 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

7:04 AM - 9:34 AM
4:15 PM - 6:45 PM

Minor Periods

12:00 AM - 12:00 AM
3:53 PM - 5:23 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:58 AM
Sun Transit: 1:35 PM
Sunset: 8:11 PM
Daylight: 13 hrs 13 mins

Moonrise: 11:48 PM
Moon Transit: 7:34 AM
Moonset: 4:23 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

7:04 AM - 9:34 AM
4:15 PM - 6:45 PM

Minor Periods

12:00 AM - 12:00 AM
3:53 PM - 5:23 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:59 AM
Sun Transit: 1:34 PM
Sunset: 8:09 PM
Daylight: 13 hrs 10 mins

Moonrise: 12:48 AM
Moon Transit: 8:37 AM
Moonset: 5:22 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

8:07 AM - 10:37 AM
5:18 PM - 7:48 PM

Minor Periods

4:52 PM - 6:22 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:59 AM
Sun Transit: 1:34 PM
Sunset: 8:09 PM
Daylight: 13 hrs 10 mins

Moonrise: 12:48 AM
Moon Transit: 8:37 AM
Moonset: 5:22 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

8:07 AM - 10:37 AM
5:18 PM - 7:48 PM

Minor Periods

4:52 PM - 6:22 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:01 AM
Sun Transit: 1:34 PM
Sunset: 8:07 PM
Daylight: 13 hrs 6 mins

Moonrise: 12:59 AM
Moon Transit: 9:39 AM
Moonset: 6:08 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

6:19 PM - 8:49 PM
9:09 AM - 11:39 AM

Minor Periods

5:38 PM - 7:08 PM
12:29 AM - 1:59 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:01 AM
Sun Transit: 1:34 PM
Sunset: 8:07 PM
Daylight: 13 hrs 6 mins

Moonrise: 12:59 AM
Moon Transit: 9:39 AM
Moonset: 6:08 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

6:19 PM - 8:49 PM
9:09 AM - 11:39 AM

Minor Periods

5:38 PM - 7:08 PM
12:29 AM - 1:59 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:02 AM
Sun Transit: 1:34 PM
Sunset: 8:05 PM
Daylight: 13 hrs 3 mins

Moonrise: 2:20 AM
Moon Transit: 10:39 AM
Moonset: 6:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

7:18 PM - 9:48 PM
10:09 AM - 12:39 AM

Minor Periods

6:11 PM - 7:41 PM
1:50 AM - 3:20 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:02 AM
Sun Transit: 1:34 PM
Sunset: 8:05 PM
Daylight: 13 hrs 3 mins

Moonrise: 2:20 AM
Moon Transit: 10:39 AM
Moonset: 6:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

7:18 PM - 9:48 PM
10:09 AM - 12:39 AM

Minor Periods

6:11 PM - 7:41 PM
1:50 AM - 3:20 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:04 AM
Sun Transit: 1:33 PM
Sunset: 8:03 PM
Daylight: 12 hrs 59 mins

Moonrise: 3:45 AM
Moon Transit: 11:35 AM
Moonset: 7:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

8:12 PM - 10:42 PM
11:05 AM - 1:35 PM

Minor Periods

6:36 PM - 8:06 PM
3:15 AM - 4:45 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:04 AM
Sun Transit: 1:33 PM
Sunset: 8:03 PM
Daylight: 12 hrs 59 mins

Moonrise: 3:45 AM
Moon Transit: 11:35 AM
Moonset: 7:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

8:12 PM - 10:42 PM
11:05 AM - 1:35 PM

Minor Periods

6:36 PM - 8:06 PM
3:15 AM - 4:45 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:05 AM
Sun Transit: 1:33 PM
Sunset: 8:01 PM
Daylight: 12 hrs 56 mins

Moonrise: 5:10 AM
Moon Transit: 12:26 AM
Moonset: 7:25 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

6:55 PM - 8:25 PM
4:40 AM - 6:10 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:05 AM
Sun Transit: 1:33 PM
Sunset: 8:01 PM
Daylight: 12 hrs 56 mins

Moonrise: 5:10 AM
Moon Transit: 12:26 AM
Moonset: 7:25 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

6:55 PM - 8:25 PM
4:40 AM - 6:10 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:06 AM
Sun Transit: 1:33 PM
Sunset: 7:59 PM
Daylight: 12 hrs 52 mins

Moonrise: 6:31 AM
Moon Transit: 1:14 PM
Moonset: 7:42 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:44 AM - 3:14 PM

Minor Periods

7:12 PM - 8:42 PM
6:01 AM - 7:31 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:06 AM
Sun Transit: 1:33 PM
Sunset: 7:59 PM
Daylight: 12 hrs 52 mins

Moonrise: 6:31 AM
Moon Transit: 1:14 PM
Moonset: 7:42 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:44 AM - 3:14 PM

Minor Periods

7:12 PM - 8:42 PM
6:01 AM - 7:31 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:08 AM
Sun Transit: 1:32 PM
Sunset: 7:57 PM
Daylight: 12 hrs 49 mins

Moonrise: 7:49 AM
Moon Transit: 2:00 PM
Moonset: 7:57 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:30 PM - 4:00 PM

Minor Periods

7:27 PM - 8:57 PM
7:19 AM - 8:49 AM

Action Rating: 5 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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