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

Current Water Temperature

55.9°F

Measurement Time: Saturday, July 11, 2026, 7:45 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

82.9°F
Sunny
Sunny
79.5°F
84.9°F
34%
SW 6 mph
7 mph
88.7°F
44.1°F
0 in
0%
9 mi
1013 mbar
9

Five Day Weather Forecast

Sunny
Sat
H: 91°F
L: 52°F
Sunny
Sun
H: 81°F
L: 52°F
Sunny
Mon
H: 85°F
L: 49°F
Patchy rain nearby
Tue
H: 77°F
L: 55°F
Sunny
Wed
H: 84°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 3 μg/m3
PM10: 3.2 μg/m3
Carbon Monoxide: 104 μg/m3
Nitrogen Dioxide: 0.2 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 112 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:41 PM
Sunset: 9:36 PM
Daylight: 15 hrs 49 mins
Moonrise: 2:17 AM
Moon Transit: 10:53 AM
Moonset: 7:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

7:35 PM - 10:05 PM
10:23 AM - 12:53 AM

Minor Periods

7:10 PM - 8:40 PM
1:47 AM - 3:17 AM

Action Rating: 3 out of 5

Saturday, July 11, 2026

Weather Forecast

Sunny
90.5°F
52.3°F
75.3°F
33%
0 in
1%
0%
10.1 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 2.92 μg/m3
PM10: 3.26 μg/m3
Carbon Monoxide: 104.54 μg/m3
Nitrogen Dioxide: 4.36 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 86.13 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:41 PM
Sunset: 9:36 PM
Daylight: 15 hrs 49 mins
Moonrise: 2:17 AM
Moon Transit: 10:53 AM
Moonset: 7:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

7:35 PM - 10:05 PM
10:23 AM - 12:53 AM

Minor Periods

7:10 PM - 8:40 PM
1:47 AM - 3:17 AM

Action Rating: 3 out of 5

Sunday, July 12, 2026

Weather Forecast

Sunny
81°F
51.5°F
65.6°F
44%
0 in
3%
0%
13.4 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 4.25 μg/m3
PM10: 4.99 μg/m3
Carbon Monoxide: 104.92 μg/m3
Nitrogen Dioxide: 5.09 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 79.17 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:41 PM
Sunset: 9:35 PM
Daylight: 15 hrs 47 mins
Moonrise: 3:11 AM
Moon Transit: 12:00 AM
Moonset: 8:48 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

8:42 PM - 11:12 PM
11:30 AM - 2:00 PM

Minor Periods

8:18 PM - 9:48 PM
2:41 AM - 4:11 AM

Action Rating: 3 out of 5

Monday, July 13, 2026

Weather Forecast

Sunny
85.3°F
48.9°F
68°F
44%
0 in
2%
0%
4 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 4.42 μg/m3
PM10: 4.97 μg/m3
Carbon Monoxide: 107.21 μg/m3
Nitrogen Dioxide: 5.27 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 71.71 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:42 PM
Sunset: 9:34 PM
Daylight: 15 hrs 45 mins
Moonrise: 4:23 AM
Moon Transit: 1:06 PM
Moonset: 9:38 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:36 AM - 3:06 PM

Minor Periods

9:08 PM - 10:38 PM
3:53 AM - 5:23 AM

Action Rating: 6 out of 5

Tuesday, July 14, 2026

Weather Forecast

Patchy rain nearby
77.2°F
55.2°F
63.5°F
83%
0.4 in
82%
0%
6 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 7.84 μg/m3
PM10: 9.79 μg/m3
Carbon Monoxide: 106.16 μg/m3
Nitrogen Dioxide: 4.36 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 74.88 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:42 PM
Sunset: 9:33 PM
Daylight: 15 hrs 43 mins
Moonrise: 5:47 AM
Moon Transit: 2:10 PM
Moonset: 10:15 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:40 PM - 4:10 PM

Minor Periods

9:45 PM - 11:15 PM
5:17 AM - 6:47 AM

Action Rating: 4 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
84.3°F
51.4°F
66.9°F
68%
0.02 in
36%
0%
6.5 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 10.84 μg/m3
PM10: 13.73 μg/m3
Carbon Monoxide: 144.57 μg/m3
Nitrogen Dioxide: 12.37 μg/m3
Sulphur Dioxide: 0.44 μg/m3
Ozone: 55.57 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:42 PM
Sunset: 9:32 PM
Daylight: 15 hrs 41 mins
Moonrise: 7:15 AM
Moon Transit: 3:08 PM
Moonset: 10:41 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:38 PM - 5:08 PM

Minor Periods

10:11 PM - 11:41 PM
6:45 AM - 8:15 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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