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

Current Water Temperature

49.6°F

Measurement Time: Tuesday, June 16, 2026, 3:45 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

68.7°F
Partly cloudy
Partly cloudy
68.7°F
76.7°F
45%
SW 6.7 mph
7.7 mph
77.5°F
42.1°F
0 in
75%
9 mi
1009 mbar
4.2

Five Day Weather Forecast

Sunny
Tue
H: 83°F
L: 46°F
Patchy rain nearby
Wed
H: 72°F
L: 38°F
Patchy rain nearby
Thu
H: 70°F
L: 38°F
Sunny
Fri
H: 76°F
L: 39°F
Patchy rain nearby
Sat
H: 81°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 5.9 μg/m3
PM10: 6.7 μg/m3
Carbon Monoxide: 115 μg/m3
Nitrogen Dioxide: 1.1 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:36 PM
Sunset: 9:40 PM
Daylight: 16 hrs 5 mins
Moonrise: 6:53 AM
Moon Transit: 3:28 PM
Moonset: 12:04 AM
Moon Phase: New
Moon Illumination: 1.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:58 PM - 5:28 PM

Minor Periods

6:23 AM - 7:53 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wind Advisory issued June 15 at 10:30AM MDT until June 16 at 10:00PM MDT by NWS Missoula MT

Effective: Mon June 15, 2026, 10:30 AM
Expires: Tue June 16, 2026, 10:00 PM

* WHAT...West winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Flathead/Mission Valleys, Flathead Lake, Kootenai/Cabinet Region, West Glacier Region, Lower Clark Fork Region, and Potomac/Seeley Lake Region. * WHEN...From 1 PM to 10 PM MDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Choppy conditions on area lakes may create hazardous conditions for small watercraft.

Winds this strong can make driving difficult, especially for high profile vehicles such as semis and RVs. Use extra caution.


High Wind Warning issued June 16 at 12:13AM MDT until June 17 at 12:00AM MDT by NWS Great Falls MT

Effective: Tue June 16, 2026, 12:13 AM
Expires: Tue June 16, 2026, 6:00 PM

* WHAT...Westerly winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Upper Blackfoot and MacDonald Pass, Eastern Glacier, Western Toole, and Central Pondera, Northern High Plains, Southern High Plains, and Southern Rocky Mountain Front, and East Glacier Park Region Zone. * WHEN...From noon today to midnight MDT tonight. * IMPACTS...Inclement conditions for outdoor recreation, especially activities involving boating or recreation in the mountains. Travel will be difficult, especially for high profile vehicles. Isolated power outages and or tree damage possible.

People are urged to secure loose objects that could be blown around or damaged by the wind.
Tuesday, June 16, 2026

Weather Forecast

Sunny
82.9°F
46.3°F
71.9°F
32%
0 in
1%
0%
18.8 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 2.92 μg/m3
PM10: 3.4 μg/m3
Carbon Monoxide: 107.96 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 83.5 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:36 PM
Sunset: 9:40 PM
Daylight: 16 hrs 5 mins
Moonrise: 6:53 AM
Moon Transit: 3:28 PM
Moonset: 12:04 AM
Moon Phase: New
Moon Illumination: 1.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:58 PM - 5:28 PM

Minor Periods

6:23 AM - 7:53 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, June 17, 2026

Weather Forecast

Patchy rain nearby
71.8°F
38.3°F
54.4°F
66%
0.02 in
36%
0%
7.6 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 1.63 μg/m3
PM10: 2 μg/m3
Carbon Monoxide: 108.33 μg/m3
Nitrogen Dioxide: 2.3 μg/m3
Sulphur Dioxide: 0.32 μg/m3
Ozone: 86.5 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:37 PM
Sunset: 9:40 PM
Daylight: 16 hrs 6 mins
Moonrise: 8:20 AM
Moon Transit: 4:28 PM
Moonset: 12:47 AM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

12:08 AM - 2:38 AM
3:58 PM - 6:28 PM

Minor Periods

7:50 AM - 9:20 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, June 18, 2026

Weather Forecast

Patchy rain nearby
70.1°F
37.6°F
54.5°F
67%
0.02 in
36%
0%
6 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 1.51 μg/m3
PM10: 1.81 μg/m3
Carbon Monoxide: 110.67 μg/m3
Nitrogen Dioxide: 3.85 μg/m3
Sulphur Dioxide: 0.25 μg/m3
Ozone: 67.58 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:37 PM
Sunset: 9:40 PM
Daylight: 16 hrs 6 mins
Moonrise: 9:46 AM
Moon Transit: 5:22 PM
Moonset: 12:18 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

1:06 AM - 3:36 AM
4:52 PM - 7:22 PM

Minor Periods

9:16 AM - 10:46 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, June 19, 2026

Weather Forecast

Sunny
75.7°F
39°F
58.5°F
60%
0 in
4%
0%
4.9 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 1.89 μg/m3
PM10: 2.39 μg/m3
Carbon Monoxide: 105.64 μg/m3
Nitrogen Dioxide: 4.59 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 68.29 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:37 PM
Sunset: 9:41 PM
Daylight: 16 hrs 6 mins
Moonrise: 11:08 AM
Moon Transit: 6:11 PM
Moonset: 12:40 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

1:58 AM - 4:28 AM
5:41 PM - 8:11 PM

Minor Periods

10:38 AM - 12:08 AM
12:10 AM - 1:40 AM

Action Rating: 2 out of 5

Saturday, June 20, 2026

Weather Forecast

Patchy rain nearby
81.3°F
45°F
60°F
63%
0.07 in
57%
0%
10.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.36 μg/m3
PM10: 2.66 μg/m3
Carbon Monoxide: 125.86 μg/m3
Nitrogen Dioxide: 8.87 μg/m3
Sulphur Dioxide: 0.16 μg/m3
Ozone: 27.43 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:37 PM
Sunset: 9:41 PM
Daylight: 16 hrs 6 mins
Moonrise: 12:26 AM
Moon Transit: 6:57 PM
Moonset: 12:58 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

2:46 AM - 5:16 AM
6:27 PM - 8:57 PM

Minor Periods

11:56 AM - 1:26 PM
12:28 AM - 1:58 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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