Water Temperature of the Jefferson River in Three Forks, MT

Current Water Temperature

68.4°F

Measurement Time: Thursday, August 7, 2025, 3:00 PM MDT

Temperature Locations

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Jefferson River

Station Name: Jefferson River near Three Forks MT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 4,081 feet / 1,244 meters

Nearest Address:
87571 Frontage Rd
Three Forks, MT 59752
Gallatin County

GPS Coordinates: 45.8971361, -111.5956722

Nearby Water Temperatures

Missouri River, Toston, MT (19.2 mi)
Madison River, Norris, MT (28.2 mi)
Jefferson River, Waterloo, MT (30.3 mi)
Jefferson River, Twin Bridges, MT (40.4 mi)
Ruby River, Twin Bridges, MT (44.6 mi)
Madison River, Ennis, MT (46.5 mi)
Big Hole River, Glen, MT (56.1 mi)
Camas Creek, White Sulphur Springs, MT (57.3 mi)
Warm Springs Creek, Warm Springs, MT (60.3 mi)
Yellowstone River, Corwin Springs, MT (66.7 mi)
Madison River, Cameron, MT (69.7 mi)
Madison River, Grayling, MT (72.3 mi)
Boiling River Hot Springs, Yellowstone National Park, WY (76.8 mi)
Missouri River, Wolf Creek, MT (78.4 mi)
Lamar River, Yellowstone National Park, WY (88.8 mi)

Weather for Three Forks, Montana

Current Weather

53.1°F
Light rain
Conditions: Light rain
Humidity: 89%
Feels Like: 52.5°F
Wind: W 3.8 mph
Wind Gusts: 5.6 mph
Pressure: 30.11 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 4 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Thu
H: 86°F
L: 50°F
Partly Cloudy
Fri
H: 73°F
L: 44°F
Sunny
Sat
H: 79°F
L: 41°F
Sunny
Sun
H: 84°F
L: 45°F
Sunny
Mon
H: 92°F
L: 53°F

Air Quality

AQI: 1 - Good
PM2.5: 8.14 μg/m3
PM10: 8.51 μg/m3
Carbon Monoxide: 194.25 μg/m3
Nitrogen Dioxide: 16.84 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 46 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 1:32 PM
Sunset: 8:47 PM
Daylight: 14 hrs 30 mins
Moonrise: 8:23 PM
Moon Transit: 12:00 AM
Moonset: 3:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:47 AM - 11:17 AM

Minor Periods

7:53 PM - 9:23 PM
3:26 AM - 4:56 AM

Action Rating: 2 out of 5

Special Weather Statement issued August 7 at 6:09PM MDT by NWS Missoula MT

Effective: Thu August 7, 2025, 6:09 PM
Expires: Thu August 7, 2025, 6:45 PM

At 609 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 21 miles southeast of Swan Lake to 14 miles east of Bonner-West Riverside. Movement was east at 30 mph. HAZARD...Winds up to 35 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Ovando, Seeley Lake, Garnet, Helmville, Clearwater, Greenough, and Woodworth. This includes the following highways... Highway 83 between mile markers 0 and 19. Highway 200 E between mile markers 18 and 57.

These storms may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service.
Thursday, August 7, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 65.5°F
Average Humidity: 51%
Chance of Rain: 0%
Wind: 19.9 mph
UV Index: 1.6

Air Quality

AQI: 1 - Good
PM2.5: 8.17 μg/m3
PM10: 9.18 μg/m3
Carbon Monoxide: 228.88 μg/m3
Nitrogen Dioxide: 8.29 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 85.04 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 1:32 PM
Sunset: 8:47 PM
Daylight: 14 hrs 30 mins
Moonrise: 8:23 PM
Moon Transit: 12:00 AM
Moonset: 3:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:47 AM - 11:17 AM

Minor Periods

7:53 PM - 9:23 PM
3:26 AM - 4:56 AM

Action Rating: 2 out of 5

Friday, August 8, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 58.3°F
Average Humidity: 56%
Chance of Rain: 0%
Wind: 19.7 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 6.57 μg/m3
PM10: 6.85 μg/m3
Carbon Monoxide: 216.89 μg/m3
Nitrogen Dioxide: 6.76 μg/m3
Sulphur Dioxide: 0.36 μg/m3
Ozone: 70.88 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 1:32 PM
Sunset: 8:45 PM
Daylight: 14 hrs 27 mins
Moonrise: 8:51 PM
Moon Transit: 12:42 AM
Moonset: 5:11 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:12 AM - 2:42 AM
9:39 AM - 12:09 AM

Minor Periods

8:21 PM - 9:51 PM
4:41 AM - 6:11 AM

Action Rating: 5 out of 5

Saturday, August 9, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 61.2°F
Average Humidity: 50%
Chance of Rain: 0%
Wind: 14.8 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 6.23 μg/m3
PM10: 6.28 μg/m3
Carbon Monoxide: 252.34 μg/m3
Nitrogen Dioxide: 9.49 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 60.32 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 1:31 PM
Sunset: 8:44 PM
Daylight: 14 hrs 24 mins
Moonrise: 9:14 PM
Moon Transit: 1:34 AM
Moonset: 6:28 AM
Moon Phase: Full
Moon Illumination: 99.0%

Best Times for Fishing or Hunting

Major Periods

1:04 AM - 3:34 AM
10:30 AM - 1:00 PM

Minor Periods

8:44 PM - 10:14 PM
5:58 AM - 7:28 AM

Action Rating: 5 out of 5

Sunday, August 10, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 67.2°F
Average Humidity: 43%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 8.95 μg/m3
PM10: 9.22 μg/m3
Carbon Monoxide: 268.1 μg/m3
Nitrogen Dioxide: 11.85 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 72.76 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:31 PM
Sunset: 8:42 PM
Daylight: 14 hrs 22 mins
Moonrise: 9:34 PM
Moon Transit: 2:24 AM
Moonset: 7:46 AM
Moon Phase: Full
Moon Illumination: 95.5%

Best Times for Fishing or Hunting

Major Periods

1:54 AM - 4:24 AM
11:19 AM - 1:49 PM

Minor Periods

9:04 PM - 10:34 PM
7:16 AM - 8:46 AM

Action Rating: 4 out of 5

Monday, August 11, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 72.3°F
Average Humidity: 29%
Chance of Rain: 0%
Wind: 11.9 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 8.84 μg/m3
PM10: 9.32 μg/m3
Carbon Monoxide: 314.07 μg/m3
Nitrogen Dioxide: 20.08 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 57.08 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 1:31 PM
Sunset: 8:41 PM
Daylight: 14 hrs 19 mins
Moonrise: 9:52 PM
Moon Transit: 3:11 AM
Moonset: 9:04 AM
Moon Phase: Waning Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

2:41 AM - 5:11 AM
12:07 AM - 2:37 PM

Minor Periods

9:22 PM - 10:52 PM
8:34 AM - 10:04 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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