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

Current Water Temperature

46.9°F

Measurement Time: Sunday, June 7, 2026, 7:45 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)
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)
Orofino River, Orofino, ID (166.1 mi)

Weather for Columbia Falls, Montana

Current Weather

46°F
Clear
Clear
43.9°F
44.6°F
68%
S 4.5 mph
9.4 mph
42.3°F
29.4°F
0 in
0%
9 mi
1013 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 66°F
L: 40°F
Moderate rain
Tue
H: 54°F
L: 41°F
Moderate rain
Wed
H: 44°F
L: 41°F
Patchy rain nearby
Thu
H: 58°F
L: 40°F
Patchy rain nearby
Fri
H: 68°F
L: 36°F

Air Quality

AQI: 1 - Good
PM2.5: 2.2 μg/m3
PM10: 3 μg/m3
Carbon Monoxide: 107 μg/m3
Nitrogen Dioxide: 2.8 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 73 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:35 PM
Sunset: 9:35 PM
Daylight: 16 hrs mins
Moonrise: 1:58 AM
Moon Transit: 7:48 AM
Moonset: 1:52 PM
Moon Phase: Last Quarter
Moon Illumination: 31.6%

Best Times for Fishing or Hunting

Major Periods

7:18 AM - 9:48 AM
4:21 PM - 6:51 PM

Minor Periods

1:22 PM - 2:52 PM
1:28 AM - 2:58 AM

Action Rating: 2 out of 5

Frost Advisory issued June 7 at 11:35AM MDT until June 8 at 9:00AM MDT by NWS Missoula MT

Effective: Sun June 7, 2026, 11:35 AM
Expires: Mon June 8, 2026, 9:00 AM

* WHAT...Temperatures between 30 to 36 degrees will result in frost formation. Localized cold spots could reach into the upper 20s. * WHERE...In Idaho, Orofino/Grangeville Region, Southern Clearwater Mountains, Eastern Lemhi County, and Northern Clearwater Mountains. In Montana, Flathead/Mission Valleys, Kootenai/Cabinet Region, Lower Clark Fork Region, and Missoula/Bitterroot Valleys. * WHEN...From midnight MDT /11 PM PDT/ tonight to 9 AM MDT /8 AM PDT/ Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.
Monday, June 8, 2026

Weather Forecast

Sunny
66.3°F
39.7°F
52.4°F
44%
0 in
0%
0%
6.5 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 2.18 μg/m3
PM10: 3.06 μg/m3
Carbon Monoxide: 106.67 μg/m3
Nitrogen Dioxide: 1.97 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 79.58 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:35 PM
Sunset: 9:35 PM
Daylight: 16 hrs mins
Moonrise: 1:58 AM
Moon Transit: 7:48 AM
Moonset: 1:52 PM
Moon Phase: Last Quarter
Moon Illumination: 31.6%

Best Times for Fishing or Hunting

Major Periods

7:18 AM - 9:48 AM
4:21 PM - 6:51 PM

Minor Periods

1:22 PM - 2:52 PM
1:28 AM - 2:58 AM

Action Rating: 2 out of 5

Tuesday, June 9, 2026

Weather Forecast

Moderate rain
53.6°F
40.9°F
46.4°F
87%
0.36 in
94%
0%
11.2 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 2.07 μg/m3
PM10: 3.16 μg/m3
Carbon Monoxide: 112.5 μg/m3
Nitrogen Dioxide: 3.28 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 64.04 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:35 PM
Sunset: 9:36 PM
Daylight: 16 hrs 1 mins
Moonrise: 2:13 AM
Moon Transit: 4:27 AM
Moonset: 3:08 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
3:57 AM - 6:27 AM

Minor Periods

2:38 PM - 4:08 PM
1:43 AM - 3:13 AM

Action Rating: 2 out of 5

Wednesday, June 10, 2026

Weather Forecast

Moderate rain
43.9°F
41.3°F
42.5°F
94%
0.34 in
97%
0%
7.4 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 0.55 μg/m3
PM10: 0.6 μg/m3
Carbon Monoxide: 109.67 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 63.83 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:35 PM
Sunset: 9:36 PM
Daylight: 16 hrs 1 mins
Moonrise: 2:29 AM
Moon Transit: 9:19 AM
Moonset: 4:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:49 AM - 11:19 AM
5:55 PM - 8:25 PM

Minor Periods

3:58 PM - 5:28 PM
1:59 AM - 3:29 AM

Action Rating: 2 out of 5

Thursday, June 11, 2026

Weather Forecast

Patchy rain nearby
58.2°F
39.7°F
47.4°F
83%
0.02 in
73%
0%
4 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 1.5 μg/m3
PM10: 1.81 μg/m3
Carbon Monoxide: 109.29 μg/m3
Nitrogen Dioxide: 2.43 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:35 PM
Sunset: 9:37 PM
Daylight: 16 hrs 2 mins
Moonrise: 2:48 AM
Moon Transit: 10:10 AM
Moonset: 5:52 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

6:47 PM - 9:17 PM
9:40 AM - 12:10 AM

Minor Periods

5:22 PM - 6:52 PM
2:18 AM - 3:48 AM

Action Rating: 3 out of 5

Friday, June 12, 2026

Weather Forecast

Patchy rain nearby
67.7°F
35.7°F
48.2°F
74%
0.07 in
73%
0%
6.7 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.71 μg/m3
PM10: 3.69 μg/m3
Carbon Monoxide: 132 μg/m3
Nitrogen Dioxide: 7.43 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 77.14 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:36 PM
Sunset: 9:38 PM
Daylight: 16 hrs 3 mins
Moonrise: 3:11 AM
Moon Transit: 11:06 AM
Moonset: 7:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

7:46 PM - 10:16 PM
10:36 AM - 1:06 PM

Minor Periods

6:50 PM - 8:20 PM
2:41 AM - 4:11 AM

Action Rating: 2 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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