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

Current Water Temperature

38.5°F

Measurement Time: Friday, March 27, 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)
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

54°F
Sunny
Sunny
54.8°F
51.4°F
21%
SSW 2.2 mph
4.7 mph
50.7°F
17.3°F
0 in
0%
9 mi
1020 mbar
0.2

Five Day Weather Forecast

Sunny
Fri
H: 58°F
L: 26°F
Overcast
Sat
H: 54°F
L: 32°F
Moderate rain
Sun
H: 43°F
L: 32°F
Partly Cloudy
Mon
H: 33°F
L: 16°F
Overcast
Tue
H: 40°F
L: 14°F

Air Quality

AQI: 1 - Good
PM2.5: 5.15 μg/m3
PM10: 6.55 μg/m3
Carbon Monoxide: 174.85 μg/m3
Nitrogen Dioxide: 6.95 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 8:00 PM
Daylight: 12 hrs 36 mins
Moonrise: 1:50 PM
Moon Transit: 9:57 PM
Moonset: 5:19 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

5:40 AM - 8:10 AM
9:27 PM - 11:57 PM

Minor Periods

1:20 PM - 2:50 PM
4:49 AM - 6:19 AM

Action Rating: 2 out of 5

Friday, March 27, 2026

Weather Forecast

Sunny
57.6°F
25.5°F
39.3°F
43%
0 in
0%
0%
4.9 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 3.51 μg/m3
PM10: 4.67 μg/m3
Carbon Monoxide: 162.53 μg/m3
Nitrogen Dioxide: 3.17 μg/m3
Sulphur Dioxide: 1.71 μg/m3
Ozone: 105.44 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 8:00 PM
Daylight: 12 hrs 36 mins
Moonrise: 1:50 PM
Moon Transit: 9:57 PM
Moonset: 5:19 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

5:40 AM - 8:10 AM
9:27 PM - 11:57 PM

Minor Periods

1:20 PM - 2:50 PM
4:49 AM - 6:19 AM

Action Rating: 2 out of 5

Saturday, March 28, 2026

Weather Forecast

Overcast
54.1°F
32.4°F
43.3°F
55%
0 in
0%
0%
5.4 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 3.85 μg/m3
PM10: 5.42 μg/m3
Carbon Monoxide: 168.85 μg/m3
Nitrogen Dioxide: 4.23 μg/m3
Sulphur Dioxide: 1.96 μg/m3
Ozone: 105.44 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:00 AM
Sunset: 8:01 PM
Daylight: 12 hrs 39 mins
Moonrise: 3:11 PM
Moon Transit: 10:48 PM
Moonset: 5:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

6:34 AM - 9:04 AM
12:00 AM - 12:00 AM

Minor Periods

2:41 PM - 4:11 PM
5:16 AM - 6:46 AM

Action Rating: 2 out of 5

Sunday, March 29, 2026

Weather Forecast

Moderate rain
43.3°F
32.4°F
39.1°F
73%
0.23 in
84%
0%
6.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.31 μg/m3
PM10: 6.8 μg/m3
Carbon Monoxide: 168.01 μg/m3
Nitrogen Dioxide: 3.29 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 106 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:00 AM
Sunset: 8:03 PM
Daylight: 12 hrs 43 mins
Moonrise: 4:30 PM
Moon Transit: 11:35 PM
Moonset: 6:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%

Best Times for Fishing or Hunting

Major Periods

7:23 AM - 9:53 AM
12:00 AM - 12:00 AM

Minor Periods

4:00 PM - 5:30 PM
5:37 AM - 7:07 AM

Action Rating: 4 out of 5

Monday, March 30, 2026

Weather Forecast

Partly Cloudy
33.4°F
15.8°F
26.9°F
58%
0 in
0%
3%
19.7 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 7.85 μg/m3
PM10: 9.66 μg/m3
Carbon Monoxide: 151.84 μg/m3
Nitrogen Dioxide: 3.41 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 94.68 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:00 AM
Sunset: 8:04 PM
Daylight: 12 hrs 46 mins
Moonrise: 5:45 PM
Moon Transit: 12:00 AM
Moonset: 6:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:09 AM - 10:39 AM

Minor Periods

5:15 PM - 6:45 PM
5:54 AM - 7:24 AM

Action Rating: 3 out of 5

Tuesday, March 31, 2026

Weather Forecast

Overcast
39.8°F
13.8°F
25.9°F
62%
0 in
0%
0%
3.4 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 2.51 μg/m3
PM10: 2.77 μg/m3
Carbon Monoxide: 158.41 μg/m3
Nitrogen Dioxide: 2.78 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 111.62 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 1:40 PM
Sunset: 8:06 PM
Daylight: 12 hrs 50 mins
Moonrise: 6:58 PM
Moon Transit: 12:19 AM
Moonset: 6:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:53 AM - 11:23 AM

Minor Periods

6:28 PM - 7:58 PM
6:09 AM - 7:39 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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