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

Current Water Temperature

39.0°F

Measurement Time: Monday, April 6, 2026, 8:45 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

48°F
Clear
Clear
46.9°F
48.8°F
68%
S 3.6 mph
7.5 mph
47.2°F
33.3°F
0 in
0%
9 mi
1009 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 59°F
L: 36°F
Mist
Wed
H: 44°F
L: 23°F
Partly Cloudy
Thu
H: 52°F
L: 37°F
Sunny
Fri
H: 59°F
L: 27°F
Patchy rain nearby
Sat
H: 64°F
L: 31°F

Air Quality

AQI: 1 - Good
PM2.5: 9.35 μg/m3
PM10: 10.35 μg/m3
Carbon Monoxide: 150.85 μg/m3
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:38 PM
Sunset: 8:16 PM
Daylight: 13 hrs 14 mins
Moonrise: 1:58 AM
Moon Transit: 5:38 AM
Moonset: 9:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

5:08 AM - 7:38 AM
2:15 PM - 4:45 PM

Minor Periods

8:47 AM - 10:17 AM
1:28 AM - 2:58 AM

Action Rating: 2 out of 5

Wind Advisory issued April 6 at 10:40AM MDT until April 7 at 9:00PM MDT by NWS Missoula MT

Effective: Mon April 6, 2026, 10:40 AM
Expires: Tue April 7, 2026, 10:45 AM

* WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. Isolated stronger gusts approaching 60 mph are possible. * WHERE...West Glacier Region and Potomac/Seeley Lake Region. * WHEN...From 9 AM to 9 PM MDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.


Wind Advisory issued April 6 at 10:40AM MDT until April 7 at 9:00PM MDT by NWS Missoula MT

Effective: Mon April 6, 2026, 10:40 AM
Expires: Tue April 7, 2026, 10:45 AM

* WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. Isolated stronger gusts approaching 60 mph are possible. * WHERE...Flathead/Mission Valleys, Kootenai/Cabinet Region, and Lower Clark Fork Region. * WHEN...From 9 AM to 9 PM MDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Anyone with plans on recreating on area lakes, especially Flathead Lake should plan on choppy conditions with 2 to 3 foot waves.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Tuesday, April 7, 2026

Weather Forecast

Sunny
59.2°F
35.6°F
48.5°F
42%
0 in
0%
0%
18.6 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 6.49 μg/m3
PM10: 7.72 μg/m3
Carbon Monoxide: 158.17 μg/m3
Nitrogen Dioxide: 2.86 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 104.08 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:38 PM
Sunset: 8:16 PM
Daylight: 13 hrs 14 mins
Moonrise: 1:58 AM
Moon Transit: 5:38 AM
Moonset: 9:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

5:08 AM - 7:38 AM
2:15 PM - 4:45 PM

Minor Periods

8:47 AM - 10:17 AM
1:28 AM - 2:58 AM

Action Rating: 2 out of 5

Wednesday, April 8, 2026

Weather Forecast

Mist
43.7°F
23.2°F
35.8°F
67%
0 in
0%
0%
4.9 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 2.35 μg/m3
PM10: 2.71 μg/m3
Carbon Monoxide: 149.17 μg/m3
Nitrogen Dioxide: 2.54 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 99.4 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:37 PM
Sunset: 8:17 PM
Daylight: 13 hrs 18 mins
Moonrise: 2:53 AM
Moon Transit: 6:30 AM
Moonset: 10:09 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

6:00 AM - 8:30 AM
3:06 PM - 5:36 PM

Minor Periods

9:39 AM - 11:09 AM
2:23 AM - 3:53 AM

Action Rating: 2 out of 5

Thursday, April 9, 2026

Weather Forecast

Partly Cloudy
51.6°F
37.1°F
42.4°F
54%
0 in
0%
0%
4 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 2.72 μg/m3
PM10: 3.16 μg/m3
Carbon Monoxide: 157.53 μg/m3
Nitrogen Dioxide: 3.39 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 94.64 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:37 PM
Sunset: 8:19 PM
Daylight: 13 hrs 21 mins
Moonrise: 3:37 AM
Moon Transit: 7:21 AM
Moonset: 11:10 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:51 AM - 9:21 AM
3:57 PM - 6:27 PM

Minor Periods

10:40 AM - 12:10 AM
3:07 AM - 4:37 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Sunny
58.9°F
27.2°F
42.9°F
56%
0 in
0%
0%
4.3 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 3.6 μg/m3
PM10: 4.42 μg/m3
Carbon Monoxide: 166.54 μg/m3
Nitrogen Dioxide: 4.07 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 112.88 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:37 PM
Sunset: 8:20 PM
Daylight: 13 hrs 25 mins
Moonrise: 4:12 AM
Moon Transit: 8:11 AM
Moonset: 12:19 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

7:41 AM - 10:11 AM
4:47 PM - 7:17 PM

Minor Periods

11:49 AM - 1:19 PM
3:42 AM - 5:12 AM

Action Rating: 2 out of 5

Saturday, April 11, 2026

Weather Forecast

Patchy rain nearby
63.9°F
31.4°F
43.5°F
63%
0.12 in
57%
0%
8.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.11 μg/m3
PM10: 5.29 μg/m3
Carbon Monoxide: 173.02 μg/m3
Nitrogen Dioxide: 5.98 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 119.85 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:37 PM
Sunset: 8:22 PM
Daylight: 13 hrs 28 mins
Moonrise: 4:39 AM
Moon Transit: 9:00 AM
Moonset: 1:31 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
5:35 PM - 8:05 PM

Minor Periods

1:01 PM - 2:31 PM
4:09 AM - 5:39 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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