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

Current Water Temperature

58.3°F

Measurement Time: Tuesday, September 1, 2026, 11:45 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

84°F

Conditions: Partly Cloudy

Humidity: 21%

Wind: ENE 2 mph

Dew Point: 40°F

Weather Forecast

Tonight
53°F - Slight Chance Light Rain then Mostly Cloudy

Wednesday
76°F - Slight Chance Light Rain then Showers And Thunderstorms

Wednesday Night
45°F - Rain Likely

Thursday
65°F - Light Rain Likely

Thursday Night
44°F - Chance Light Rain

Friday
68°F - Chance Light Rain then Chance Showers And Thunderstorms

Friday Night
43°F - Chance Showers And Thunderstorms then Chance Light Rain

Saturday
72°F - Chance Showers And Thunderstorms then Partly Sunny

Saturday Night
46°F - Chance Light Rain

Sunday
75°F - Mostly Sunny then Slight Chance Light Rain

Sunday Night
48°F - Chance Showers And Thunderstorms then Chance Light Rain

Labor Day
71°F - Rain Likely

Monday Night
47°F - Light Rain Likely

Tuesday
68°F - Chance Rain

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:36 PM
Sunset: 8:17 PM
Daylight: 13 hrs 23 mins

Moonrise: 9:44 PM
Moon Transit: 4:44 AM
Moonset: 12:26 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

4:14 AM - 6:44 AM
1:21 PM - 3:51 PM

Minor Periods

9:14 PM - 10:44 PM
11:56 AM - 1:26 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: 6:54 AM
Sun Transit: 1:36 PM
Sunset: 8:17 PM
Daylight: 13 hrs 23 mins

Moonrise: 9:44 PM
Moon Transit: 4:44 AM
Moonset: 12:26 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

4:14 AM - 6:44 AM
1:21 PM - 3:51 PM

Minor Periods

9:14 PM - 10:44 PM
11:56 AM - 1:26 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: 6:55 AM
Sun Transit: 1:35 PM
Sunset: 8:15 PM
Daylight: 13 hrs 20 mins

Moonrise: 10:14 PM
Moon Transit: 5:37 AM
Moonset: 1:48 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

5:07 AM - 7:37 AM
2:14 PM - 4:44 PM

Minor Periods

9:44 PM - 11:14 PM
1:18 PM - 2:48 PM

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: 6:55 AM
Sun Transit: 1:35 PM
Sunset: 8:15 PM
Daylight: 13 hrs 20 mins

Moonrise: 10:14 PM
Moon Transit: 5:37 AM
Moonset: 1:48 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

5:07 AM - 7:37 AM
2:14 PM - 4:44 PM

Minor Periods

9:44 PM - 11:14 PM
1:18 PM - 2:48 PM

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: 6:57 AM
Sun Transit: 1:35 PM
Sunset: 8:13 PM
Daylight: 13 hrs 17 mins

Moonrise: 10:54 PM
Moon Transit: 6:33 AM
Moonset: 3:09 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

6:03 AM - 8:33 AM
3:13 PM - 5:43 PM

Minor Periods

10:24 PM - 11:54 PM
2:39 PM - 4:09 PM

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: 6:57 AM
Sun Transit: 1:35 PM
Sunset: 8:13 PM
Daylight: 13 hrs 17 mins

Moonrise: 10:54 PM
Moon Transit: 6:33 AM
Moonset: 3:09 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

6:03 AM - 8:33 AM
3:13 PM - 5:43 PM

Minor Periods

10:24 PM - 11:54 PM
2:39 PM - 4:09 PM

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: 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

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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