Water Temperature of the Jefferson River in Three Forks, MT

Current Water Temperature

46.0°F

Measurement Time: Thursday, April 16, 2026, 8:00 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

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

28.4°F
Clear
Clear
22.3°F
28.4°F
58%
N 2.2 mph
6.7 mph
22.3°F
15°F
0 in
0%
6 mi
1022 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 47°F
L: 27°F
Partly Cloudy
Sat
H: 57°F
L: 15°F
Sunny
Sun
H: 71°F
L: 24°F
Sunny
Mon
H: 72°F
L: 41°F
Sunny
Tue
H: 75°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 2.95 μg/m3
PM10: 3.75 μg/m3
Carbon Monoxide: 165.85 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:25 PM
Sunset: 8:16 PM
Daylight: 13 hrs 40 mins
Moonrise: 6:21 AM
Moon Transit: 1:36 PM
Moonset: 9:11 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:06 PM - 3:36 PM

Minor Periods

8:41 PM - 10:11 PM
5:51 AM - 7:21 AM

Action Rating: 4 out of 5

Winter Storm Warning issued April 16 at 3:25PM MDT until April 17 at 12:00AM MDT by NWS Great Falls MT

Effective: Thu April 16, 2026, 3:25 PM
Expires: Fri April 17, 2026, 12:00 AM

* WHAT...Heavy snow. Additional snow accumulations 1 to 3 inches. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...Until midnight MDT tonight. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website.


Winter Storm Warning issued April 16 at 1:18PM MDT until April 17 at 6:00AM MDT by NWS Riverton WY

Effective: Thu April 16, 2026, 1:18 PM
Expires: Fri April 17, 2026, 6:00 AM

* WHAT...Heavy snow. Additional snow accumulations up to 3 inches with amounts nearing 6 inches along the highest peaks. Winds gusting as high as 35 mph. * WHERE...Absaroka Mountains, Teton and Gros Ventre Mountains, and Yellowstone National Park. * WHEN...Until 6 AM MDT Friday. * IMPACTS...Travel could be very difficult, especially across Teton Pass and Togwotee Pass. Strong winds will cause limited visibility.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. 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.
Friday, April 17, 2026

Weather Forecast

Sunny
47.3°F
26.8°F
35.3°F
51%
0 in
0%
0%
6.5 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 2.94 μg/m3
PM10: 3.85 μg/m3
Carbon Monoxide: 165.73 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 97.88 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:25 PM
Sunset: 8:16 PM
Daylight: 13 hrs 40 mins
Moonrise: 6:21 AM
Moon Transit: 1:36 PM
Moonset: 9:11 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:06 PM - 3:36 PM

Minor Periods

8:41 PM - 10:11 PM
5:51 AM - 7:21 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Partly Cloudy
56.7°F
14.5°F
36°F
64%
0 in
0%
0%
15.2 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 3.79 μg/m3
PM10: 5.17 μg/m3
Carbon Monoxide: 164.69 μg/m3
Nitrogen Dioxide: 3.79 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 100.16 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:25 PM
Sunset: 8:18 PM
Daylight: 13 hrs 43 mins
Moonrise: 6:48 AM
Moon Transit: 2:33 PM
Moonset: 10:37 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:03 PM - 4:33 PM

Minor Periods

10:07 PM - 11:37 PM
6:18 AM - 7:48 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Sunny
71.4°F
23.7°F
47.5°F
44%
0 in
0%
0%
11.9 mph
1.8


Air Quality

AQI: 1 - Good
PM2.5: 4.16 μg/m3
PM10: 8.09 μg/m3
Carbon Monoxide: 151.21 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 105.08 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:25 PM
Sunset: 8:19 PM
Daylight: 13 hrs 46 mins
Moonrise: 7:22 AM
Moon Transit: 3:35 PM
Moonset: 12:01 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:05 PM - 5:35 PM

Minor Periods

12:00 AM - 12:00 AM
6:52 AM - 8:22 AM

Action Rating: 3 out of 5

Monday, April 20, 2026

Weather Forecast

Sunny
72.1°F
41.4°F
56.4°F
34%
0 in
0%
0%
15.4 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 4.29 μg/m3
PM10: 10.91 μg/m3
Carbon Monoxide: 162.11 μg/m3
Nitrogen Dioxide: 4.01 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 93.16 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:25 PM
Sunset: 8:20 PM
Daylight: 13 hrs 49 mins
Moonrise: 8:09 AM
Moon Transit: 4:39 PM
Moonset: 12:01 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
4:09 PM - 6:39 PM

Minor Periods

7:39 AM - 9:09 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, April 21, 2026

Weather Forecast

Sunny
75°F
44.9°F
56.1°F
38%
0 in
0%
0%
7.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.3 μg/m3
PM10: 14.8 μg/m3
Carbon Monoxide: 161.57 μg/m3
Nitrogen Dioxide: 5.4 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 89.15 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 1:25 PM
Sunset: 8:22 PM
Daylight: 13 hrs 52 mins
Moonrise: 9:09 AM
Moon Transit: 5:44 PM
Moonset: 1:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

1:41 AM - 4:11 AM
5:14 PM - 7:44 PM

Minor Periods

8:39 AM - 10:09 AM
12:45 AM - 2:15 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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