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

Current Water Temperature

38.5°F

Measurement Time: Monday, March 30, 2026, 5:45 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

23.2°F
Clear
Clear
18.8°F
32.2°F
74%
ENE 3.4 mph
7 mph
31.2°F
12.8°F
0 in
0%
9 mi
1017 mbar
0

Five Day Weather Forecast

Overcast
Tue
H: 45°F
L: 30°F
Partly Cloudy
Wed
H: 49°F
L: 32°F
Heavy rain
Thu
H: 39°F
L: 34°F
Patchy rain nearby
Fri
H: 42°F
L: 17°F
Freezing fog
Sat
H: 43°F
L: 21°F

Air Quality

PM2.5: 3.15 μg/m3
PM10: 3.45 μg/m3
Carbon Monoxide: 188.85 μg/m3
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 0.85 μg/m3
Ozone: 98 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

Tuesday, March 31, 2026

Weather Forecast

Overcast
45.3°F
29.7°F
36.3°F
52%
0 in
0%
0%
3.6 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 3.33 μg/m3
PM10: 4.21 μg/m3
Carbon Monoxide: 166.61 μg/m3
Nitrogen Dioxide: 2.94 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 109.68 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

Wednesday, April 1, 2026

Weather Forecast

Partly Cloudy
49.3°F
32.4°F
40.6°F
77%
0 in
0%
0%
3.4 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 3.28 μg/m3
PM10: 4.57 μg/m3
Carbon Monoxide: 169.13 μg/m3
Nitrogen Dioxide: 4.45 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 107 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 1:39 PM
Sunset: 8:07 PM
Daylight: 12 hrs 53 mins
Moonrise: 8:10 PM
Moon Transit: 1:02 AM
Moonset: 6:53 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:32 AM - 3:02 AM
9:35 AM - 12:05 AM

Minor Periods

7:40 PM - 9:10 PM
6:23 AM - 7:53 AM

Action Rating: 4 out of 5

Thursday, April 2, 2026

Weather Forecast

Heavy rain
38.7°F
34°F
35.6°F
94%
2.24 in
89%
0%
3.8 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.28 μg/m3
PM10: 3.97 μg/m3
Carbon Monoxide: 168.68 μg/m3
Nitrogen Dioxide: 4.91 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 87.92 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 1:39 PM
Sunset: 8:09 PM
Daylight: 12 hrs 57 mins
Moonrise: 9:21 PM
Moon Transit: 1:44 AM
Moonset: 7:07 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

1:14 AM - 3:44 AM
10:18 AM - 12:48 AM

Minor Periods

8:51 PM - 10:21 PM
6:37 AM - 8:07 AM

Action Rating: 3 out of 5

Friday, April 3, 2026

Weather Forecast

Patchy rain nearby
41.6°F
17.3°F
30°F
94%
0.19 in
87%
32%
4 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 4 μg/m3
PM10: 4.97 μg/m3
Carbon Monoxide: 194.67 μg/m3
Nitrogen Dioxide: 4.68 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 83.38 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 1:39 PM
Sunset: 8:10 PM
Daylight: 13 hrs mins
Moonrise: 10:34 PM
Moon Transit: 2:27 AM
Moonset: 7:23 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

1:57 AM - 4:27 AM
11:01 AM - 1:31 PM

Minor Periods

10:04 PM - 11:34 PM
6:53 AM - 8:23 AM

Action Rating: 4 out of 5

Saturday, April 4, 2026

Weather Forecast

Freezing fog
42.7°F
20.6°F
29.5°F
93%
0 in
0%
5%
4 mph
0


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: 1:39 PM
Sunset: 8:12 PM
Daylight: 13 hrs 4 mins
Moonrise: 11:45 PM
Moon Transit: 3:12 AM
Moonset: 7:42 AM
Moon Phase: Full
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

2:42 AM - 5:12 AM
11:46 AM - 2:16 PM

Minor Periods

12:00 AM - 12:00 AM
7:12 AM - 8:42 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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