Water Temperature of the Jefferson River in Three Forks, MT

Current Water Temperature

43.2°F

Measurement Time: Friday, March 13, 2026, 9:00 AM 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

55.8°F
Sunny
Sunny
50.8°F
55.8°F
40%
W 21.5 mph
24.7 mph
50.8°F
33°F
0 in
0%
6 mi
1007 mbar
1.4

Five Day Weather Forecast

Sunny
Fri
H: 58°F
L: 40°F
Overcast
Sat
H: 52°F
L: 14°F
Sunny
Sun
H: 33°F
L: 9°F
Patchy rain nearby
Mon
H: 53°F
L: 23°F
Partly Cloudy
Tue
H: 64°F
L: 44°F

Air Quality

AQI: 1 - Good
PM2.5: 1.05 μg/m3
PM10: 1.05 μg/m3
Carbon Monoxide: 142.85 μg/m3
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 1:35 PM
Sunset: 7:30 PM
Daylight: 11 hrs 47 mins
Moonrise: 5:18 AM
Moon Transit: 9:20 AM
Moonset: 1:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

8:50 AM - 11:20 AM
6:17 PM - 8:47 PM

Minor Periods

12:57 AM - 2:27 PM
4:48 AM - 6:18 AM

Action Rating: 2 out of 5

Winter Storm Warning issued March 12 at 11:46PM MDT until March 14 at 6:00PM MDT by NWS Great Falls MT

Effective: Thu March 12, 2026, 11:46 PM
Expires: Fri March 13, 2026, 6:15 PM

* WHAT...Periods of moderate to heavy snow. Additional snow accumulations between 6 and 12 inches with up to 16 inches at the highest elevations. Winds gusting as high as 35 mph. * WHERE...Big Belt, Bridger and Castle Mountains, Elkhorn and Boulder Mountains, Helena Valley, and Meagher County Valleys. * WHEN...Until 6 PM MDT Saturday. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Those in the backcountry should ensure they are prepared for dangerous conditions. The hazardous conditions could impact the Friday morning and evening commutes. * ADDITIONAL DETAILS...The best window for moderate to heavy snowfall will be late Friday into Saturday.

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. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock.


Winter Storm Watch issued March 13 at 2:12AM MDT until March 14 at 11:00PM MDT by NWS Riverton WY

Effective: Fri March 13, 2026, 2:12 AM
Expires: Fri March 13, 2026, 5:15 PM

* WHAT...Heavy snow possible. Total snow accumulations of 10 to 15 inches over southern portions and far eastern portions; 3 to 6 inches in central portions and 1 to 4 inches in Lamar Valley and Mammoth. Winds could gust as high as 50 mph. * WHERE...Yellowstone National Park. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...Travel could be difficult, especially in the backcountry.

Monitor the latest forecasts for updates on this situation.
Friday, March 13, 2026

Weather Forecast

Sunny
57.6°F
39.6°F
46.7°F
57%
0 in
0%
0%
22.8 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.07 μg/m3
PM10: 1.13 μg/m3
Carbon Monoxide: 139.09 μg/m3
Nitrogen Dioxide: 2.11 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 80.04 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 1:35 PM
Sunset: 7:30 PM
Daylight: 11 hrs 47 mins
Moonrise: 5:18 AM
Moon Transit: 9:20 AM
Moonset: 1:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

8:50 AM - 11:20 AM
6:17 PM - 8:47 PM

Minor Periods

12:57 AM - 2:27 PM
4:48 AM - 6:18 AM

Action Rating: 2 out of 5

Saturday, March 14, 2026

Weather Forecast

Overcast
52°F
13.9°F
37°F
55%
0 in
0%
0%
31.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 1.23 μg/m3
PM10: 1.33 μg/m3
Carbon Monoxide: 153.17 μg/m3
Nitrogen Dioxide: 1.89 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 79.36 μg/m3

Astronomical

Sunrise: 7:40 AM
Sun Transit: 12:00 AM
Sunset: 7:31 PM
Daylight: 11 hrs 51 mins
Moonrise: 5:52 AM
Moon Transit: 10:11 AM
Moonset: 2:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

7:07 PM - 9:37 PM
9:41 AM - 12:11 AM

Minor Periods

2:08 PM - 3:38 PM
5:22 AM - 6:52 AM

Action Rating: 3 out of 5

Sunday, March 15, 2026

Weather Forecast

Sunny
32.7°F
8.8°F
20.6°F
47%
0 in
0%
0%
9.8 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 3.16 μg/m3
PM10: 3.63 μg/m3
Carbon Monoxide: 177.21 μg/m3
Nitrogen Dioxide: 2.01 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 102.48 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 12:00 AM
Sunset: 7:32 PM
Daylight: 11 hrs 54 mins
Moonrise: 6:19 AM
Moon Transit: 11:00 AM
Moonset: 3:50 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

7:55 PM - 10:25 PM
10:30 AM - 1:00 PM

Minor Periods

3:20 PM - 4:50 PM
5:49 AM - 7:19 AM

Action Rating: 4 out of 5

Monday, March 16, 2026

Weather Forecast

Patchy rain nearby
52.9°F
23.2°F
38.7°F
53%
0.01 in
73%
0%
15.7 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 2.98 μg/m3
PM10: 4.28 μg/m3
Carbon Monoxide: 182.23 μg/m3
Nitrogen Dioxide: 3.08 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 99.6 μg/m3

Astronomical

Sunrise: 7:37 AM
Sun Transit: 12:00 AM
Sunset: 7:34 PM
Daylight: 11 hrs 57 mins
Moonrise: 6:42 AM
Moon Transit: 11:47 AM
Moonset: 5:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

8:42 PM - 11:12 PM
11:17 AM - 1:47 PM

Minor Periods

4:34 PM - 6:04 PM
6:12 AM - 7:42 AM

Action Rating: 3 out of 5

Tuesday, March 17, 2026

Weather Forecast

Partly Cloudy
63.8°F
43.5°F
52.5°F
41%
0 in
0%
0%
19.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.89 μg/m3
PM10: 3.37 μg/m3
Carbon Monoxide: 127.26 μg/m3
Nitrogen Dioxide: 2.44 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 84.85 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 12:00 AM
Sunset: 7:35 PM
Daylight: 12 hrs mins
Moonrise: 7:01 AM
Moon Transit: 12:33 AM
Moonset: 6:19 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

9:28 PM - 11:58 PM
12:03 AM - 2:33 PM

Minor Periods

5:49 PM - 7:19 PM
6:31 AM - 8:01 AM

Action Rating: 5 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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