Water Temperature of the Jefferson River in Three Forks, MT

Current Water Temperature

48.6°F

Measurement Time: Monday, March 23, 2026, 12:00 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

65.3°F
Sunny
Sunny
65.3°F
65.3°F
10%
SE 2.7 mph
3.1 mph
65.3°F
10.1°F
0 in
0%
6 mi
1011 mbar
0.5

Five Day Weather Forecast

Sunny
Mon
H: 67°F
L: 30°F
Overcast
Tue
H: 65°F
L: 39°F
Partly Cloudy
Wed
H: 65°F
L: 39°F
Partly Cloudy
Thu
H: 44°F
L: 28°F
Sunny
Fri
H: 51°F
L: 26°F

Air Quality

AQI: 1 - Good
PM2.5: 3.05 μg/m3
PM10: 3.55 μg/m3
Carbon Monoxide: 226.85 μg/m3
Nitrogen Dioxide: 7.75 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 60 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:00 AM
Sunset: 7:43 PM
Daylight: 12 hrs 20 mins
Moonrise: 9:26 AM
Moon Transit: 5:47 PM
Moonset: 1:01 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

1:46 AM - 4:16 AM
5:17 PM - 7:47 PM

Minor Periods

8:56 AM - 10:26 AM
12:31 AM - 2:01 AM

Action Rating: 3 out of 5

High Wind Watch issued March 22 at 11:33PM MDT until March 25 at 9:00PM MDT by NWS Great Falls MT

Effective: Sun March 22, 2026, 11:33 PM
Expires: Mon March 23, 2026, 6:15 PM

* WHAT...West winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...Hill County, Northern Blaine County, Beaverhead and Western Madison below 6000ft, Missouri Headwaters, and Ruby Mountains and Southern Beaverhead Mountains. * WHEN...From Wednesday morning through Wednesday evening. * IMPACTS...High winds may move loose debris, damage property and cause isolated power outages. Travel could be difficult, especially for high profile vehicles.

Monitor the latest forecasts and warnings for updates.


High Wind Watch issued March 23 at 12:18PM MDT until March 25 at 9:00PM MDT by NWS Great Falls MT

Effective: Mon March 23, 2026, 12:18 PM
Expires: Tue March 24, 2026, 6:15 AM

* WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...Beaverhead and Western Madison below 6000ft, Missouri Headwaters, and Ruby Mountains and Southern Beaverhead Mountains. * WHEN...From Wednesday morning through Wednesday evening. * IMPACTS...High winds may move loose debris, damage property and cause isolated power outages. Travel could be difficult, especially for high profile vehicles.

Monitor the latest forecasts and warnings for updates.


Fire Weather Watch issued March 23 at 11:13AM MDT until March 25 at 9:00PM MDT by NWS Missoula MT

Effective: Mon March 23, 2026, 11:13 AM
Expires: Mon March 23, 2026, 7:15 PM

The National Weather Service in Missoula has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Wednesday afternoon through Wednesday evening. * AFFECTED AREA...Fire Zone 111 East Beaverhead below 7500 feet. * TIMING...From Wednesday afternoon through Wednesday evening. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 19 percent. * IMPACTS...Elevated fire danger is expected. Fires will catch and spread rapidly and erratically.

A Fire Weather Watch means that critical fire weather conditions are forecast to occur.


Fire Weather Watch issued March 23 at 1:00PM MDT until March 25 at 9:00PM MDT by NWS Great Falls MT

Effective: Mon March 23, 2026, 1:00 PM
Expires: Tue March 24, 2026, 4:00 AM

The National Weather Service in Great Falls has issued a Fire Weather Watch for gusty winds and low relative humidity, which is in effect from Wednesday afternoon through Wednesday evening. * AFFECTED AREA...Helena and Townsend Ranger Districts of the Helena National Forest below the snow line. * WINDS...West 25 to 35 mph with gusts up to 60 mph, strongest in southern portions of the district. * RELATIVE HUMIDITY...As low as 18 percent. * IMPACTS... New or existing fires/starts could be difficult to contain.

A Fire Weather Watch means that critical fire weather conditions are possible. A combination of gusty winds, low relative humidity, and warm temperatures will create high fire growth potential. Please advise the appropriate officials or fire crews in these areas of this Fire Weather Watch.


High Wind Watch issued March 23 at 12:18PM MDT until March 25 at 9:00PM MDT by NWS Great Falls MT

Effective: Mon March 23, 2026, 12:18 PM
Expires: Tue March 24, 2026, 6:15 AM

* WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...Big Belt, Bridger and Castle Mountains, Gallatin Valley, Gallatin and Madison County Mountains and Centennial Mountains, and Madison River Valley. * WHEN...From Wednesday morning through Wednesday evening. * IMPACTS...High winds may move loose debris, damage property and cause isolated power outages. Travel could be difficult, especially for high profile vehicles.

Monitor the latest forecasts and warnings for updates.


Monday, March 23, 2026

Weather Forecast

Sunny
67.3°F
30°F
48°F
25%
0 in
0%
0%
3.6 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 4.7 μg/m3
PM10: 5.56 μg/m3
Carbon Monoxide: 167.09 μg/m3
Nitrogen Dioxide: 4.93 μg/m3
Sulphur Dioxide: 3.28 μg/m3
Ozone: 79.8 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:00 AM
Sunset: 7:43 PM
Daylight: 12 hrs 20 mins
Moonrise: 9:26 AM
Moon Transit: 5:47 PM
Moonset: 1:01 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

1:46 AM - 4:16 AM
5:17 PM - 7:47 PM

Minor Periods

8:56 AM - 10:26 AM
12:31 AM - 2:01 AM

Action Rating: 3 out of 5

Tuesday, March 24, 2026

Weather Forecast

Overcast
64.9°F
39.4°F
50.2°F
42%
0 in
0%
0%
14.1 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 3.25 μg/m3
PM10: 3.79 μg/m3
Carbon Monoxide: 182.81 μg/m3
Nitrogen Dioxide: 4.16 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 80.52 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:00 AM
Sunset: 7:44 PM
Daylight: 12 hrs 23 mins
Moonrise: 10:16 AM
Moon Transit: 6:50 PM
Moonset: 2:19 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

2:48 AM - 5:18 AM
6:20 PM - 8:50 PM

Minor Periods

9:46 AM - 11:16 AM
1:49 AM - 3:19 AM

Action Rating: 2 out of 5

Wednesday, March 25, 2026

Weather Forecast

Partly Cloudy
65.3°F
38.6°F
50.7°F
50%
0 in
0%
0%
28.6 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 3.95 μg/m3
PM10: 4.4 μg/m3
Carbon Monoxide: 133.81 μg/m3
Nitrogen Dioxide: 3.36 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 64.48 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:00 AM
Sunset: 7:46 PM
Daylight: 12 hrs 27 mins
Moonrise: 11:18 AM
Moon Transit: 7:52 PM
Moonset: 3:26 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

3:51 AM - 6:21 AM
7:22 PM - 9:52 PM

Minor Periods

10:48 AM - 12:18 AM
2:56 AM - 4:26 AM

Action Rating: 3 out of 5

Thursday, March 26, 2026

Weather Forecast

Partly Cloudy
43.7°F
28°F
36.6°F
39%
0 in
0%
0%
17.7 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 2.93 μg/m3
PM10: 3.64 μg/m3
Carbon Monoxide: 136.7 μg/m3
Nitrogen Dioxide: 2.37 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 86.96 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:00 AM
Sunset: 7:47 PM
Daylight: 12 hrs 30 mins
Moonrise: 12:32 AM
Moon Transit: 8:52 PM
Moonset: 4:19 AM
Moon Phase: First Quarter
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

4:52 AM - 7:22 AM
8:22 PM - 10:52 PM

Minor Periods

12:02 AM - 1:32 PM
3:49 AM - 5:19 AM

Action Rating: 3 out of 5

Friday, March 27, 2026

Weather Forecast

Sunny
51°F
26.2°F
38.8°F
36%
0 in
0%
0%
4.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.83 μg/m3
PM10: 5.03 μg/m3
Carbon Monoxide: 170.9 μg/m3
Nitrogen Dioxide: 5.53 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 89.85 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:00 AM
Sunset: 7:48 PM
Daylight: 12 hrs 33 mins
Moonrise: 1:50 PM
Moon Transit: 9:47 PM
Moonset: 4:59 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

5:50 AM - 8:20 AM
9:17 PM - 11:47 PM

Minor Periods

1:20 PM - 2:50 PM
4:29 AM - 5:59 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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