Water Temperature of the Jefferson River in Three Forks, MT

Current Water Temperature

36.1°F

Measurement Time: Wednesday, January 7, 2026, 11:00 AM MST

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

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

30°F
Overcast
Overcast
24°F
39.1°F
66%
NW 5.8 mph
12.2 mph
32.3°F
11.3°F
0 in
100%
9 mi
1005 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 45°F
L: 27°F
Partly Cloudy
Thu
H: 35°F
L: 21°F
Partly Cloudy
Fri
H: 34°F
L: 15°F
Sunny
Sat
H: 40°F
L: 15°F
Partly Cloudy
Sun
H: 39°F
L: 25°F

Air Quality

AQI: 1 - Good
PM2.5: 5.65 μg/m3
PM10: 6.85 μg/m3
Carbon Monoxide: 163.85 μg/m3
Nitrogen Dioxide: 11.55 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 55 μg/m3

Astronomical

Sunrise: 8:07 AM
Sun Transit: 12:32 AM
Sunset: 4:59 PM
Daylight: 8 hrs 51 mins
Moonrise: 10:26 PM
Moon Transit: 4:04 AM
Moonset: 10:42 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

3:34 AM - 6:04 AM
12:59 AM - 3:29 PM

Minor Periods

9:56 PM - 11:26 PM
10:12 AM - 11:42 AM

Action Rating: 2 out of 5

Winter Weather Advisory issued January 7 at 4:36AM MST until January 7 at 5:00PM MST by NWS Riverton WY

Effective: Wed January 7, 2026, 4:36 AM
Expires: Wed January 7, 2026, 5:00 PM

* WHAT...Snow. Additional snow accumulations of 6 to 12 inches along the plateaus of southwestern Yellowstone National Park. Generally 1 to 3 inches of additional accumulation elsewhere. Winds gusting as high as 40 mph. * WHERE...Yellowstone National Park. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Travel could be very difficult, especially in the backcountry.

Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info .
Wednesday, January 7, 2026

Weather Forecast

Sunny
45.1°F
27.1°F
38.1°F
43%
0 in
0%
0%
20.1 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.47 μg/m3
PM10: 1.66 μg/m3
Carbon Monoxide: 137.97 μg/m3
Nitrogen Dioxide: 1.89 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 86.32 μg/m3

Astronomical

Sunrise: 8:07 AM
Sun Transit: 12:32 AM
Sunset: 4:59 PM
Daylight: 8 hrs 51 mins
Moonrise: 10:26 PM
Moon Transit: 4:04 AM
Moonset: 10:42 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

3:34 AM - 6:04 AM
12:59 AM - 3:29 PM

Minor Periods

9:56 PM - 11:26 PM
10:12 AM - 11:42 AM

Action Rating: 2 out of 5

Thursday, January 8, 2026

Weather Forecast

Partly Cloudy
35.1°F
20.5°F
25.4°F
54%
0 in
0%
0%
14.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.88 μg/m3
PM10: 4.58 μg/m3
Carbon Monoxide: 169.37 μg/m3
Nitrogen Dioxide: 6.82 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 70.12 μg/m3

Astronomical

Sunrise: 8:07 AM
Sun Transit: 12:33 AM
Sunset: 5:00 PM
Daylight: 8 hrs 53 mins
Moonrise: 11:34 PM
Moon Transit: 4:48 AM
Moonset: 10:58 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
1:41 PM - 4:11 PM

Minor Periods

12:00 AM - 12:00 AM
10:28 AM - 11:58 AM

Action Rating: 2 out of 5

Friday, January 9, 2026

Weather Forecast

Partly Cloudy
34.3°F
14.7°F
23°F
68%
0 in
0%
0%
13 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.72 μg/m3
PM10: 3.42 μg/m3
Carbon Monoxide: 151.21 μg/m3
Nitrogen Dioxide: 2.81 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 78.96 μg/m3

Astronomical

Sunrise: 8:07 AM
Sun Transit: 12:33 AM
Sunset: 5:01 PM
Daylight: 8 hrs 54 mins
Moonrise: 12:34 AM
Moon Transit: 5:30 AM
Moonset: 11:14 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

5:00 AM - 7:30 AM
2:23 PM - 4:53 PM

Minor Periods

10:44 AM - 12:14 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, January 10, 2026

Weather Forecast

Sunny
39.6°F
14.5°F
25.6°F
68%
0 in
0%
0%
6.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.23 μg/m3
PM10: 2.37 μg/m3
Carbon Monoxide: 158.59 μg/m3
Nitrogen Dioxide: 3.01 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 79.76 μg/m3

Astronomical

Sunrise: 8:06 AM
Sun Transit: 12:34 AM
Sunset: 5:02 PM
Daylight: 8 hrs 56 mins
Moonrise: 12:42 AM
Moon Transit: 6:11 AM
Moonset: 11:30 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

5:41 AM - 8:11 AM
3:04 PM - 5:34 PM

Minor Periods

11:00 AM - 12:30 AM
12:12 AM - 1:42 AM

Action Rating: 3 out of 5

Sunday, January 11, 2026

Weather Forecast

Partly Cloudy
39°F
24.8°F
31.4°F
48%
0 in
0%
0%
6.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 5.45 μg/m3
PM10: 5.88 μg/m3
Carbon Monoxide: 203.1 μg/m3
Nitrogen Dioxide: 6.01 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 71.46 μg/m3

Astronomical

Sunrise: 8:06 AM
Sun Transit: 12:34 AM
Sunset: 5:03 PM
Daylight: 8 hrs 57 mins
Moonrise: 1:48 AM
Moon Transit: 6:53 AM
Moonset: 11:49 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:23 AM - 8:53 AM
3:47 PM - 6:17 PM

Minor Periods

11:19 AM - 12:49 AM
1:18 AM - 2:48 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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