Water Temperature of the Jefferson River in Three Forks, MT

Current Water Temperature

75.7°F

Measurement Time: Friday, July 24, 2026, 7:00 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

98.1°F
Sunny
Sunny
83.1°F
95.6°F
20%
WSW 13.9 mph
15.9 mph
98.1°F
50.2°F
0 in
0%
6 mi
1006 mbar
9.6

Five Day Weather Forecast

Sunny
Fri
H: 102°F
L: 60°F
Sunny
Sat
H: 100°F
L: 63°F
Sunny
Sun
H: 101°F
L: 62°F
Sunny
Mon
H: 99°F
L: 62°F
Sunny
Tue
H: 97°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 5.8 μg/m3
PM10: 6.6 μg/m3
Carbon Monoxide: 109 μg/m3
Nitrogen Dioxide: 0.3 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 102 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:32 PM
Sunset: 9:05 PM
Daylight: 15 hrs 5 mins
Moonrise: 6:01 PM
Moon Transit: 10:00 PM
Moonset: 1:16 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
12:00 AM - 12:00 AM

Minor Periods

5:31 PM - 7:01 PM
12:46 AM - 2:16 AM

Action Rating: 4 out of 5

Heat Advisory issued July 23 at 9:44PM MDT until July 26 at 9:00PM MDT by NWS Billings MT

Effective: Thu July 23, 2026, 9:44 PM
Expires: Fri July 24, 2026, 9:45 PM

* WHAT...Hot conditions with high temperatures of 90 to 100. Saturday is expected to be the hottest day. * WHERE...Portions of central and south central Montana. * WHEN...From 9 AM Friday to 9 PM MDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Hot daytime temperatures combined with warm overnight low temperatures will produce cumulative heat stress. This heat stress will become dangerous to anyone without adequate cooling and hydration.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Heat Advisory issued July 24 at 1:28AM MDT until July 26 at 9:00PM MDT by NWS Billings MT

Effective: Fri July 24, 2026, 1:28 AM
Expires: Sat July 25, 2026, 1:30 AM

* WHAT...Hot conditions with high temperatures of 90 to 100. Saturday is expected to be the hottest day. * WHERE...Portions of central and south central Montana. * WHEN...From 9 AM this morning to 9 PM MDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Hot daytime temperatures combined with warm overnight low temperatures will produce cumulative heat stress. This heat stress will become dangerous to anyone without adequate cooling and hydration.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Friday, July 24, 2026

Weather Forecast

Sunny
101.7°F
60.4°F
82°F
38%
0 in
1%
0%
19 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 9.58 μg/m3
PM10: 10.62 μg/m3
Carbon Monoxide: 112.63 μg/m3
Nitrogen Dioxide: 5.93 μg/m3
Sulphur Dioxide: 0.49 μg/m3
Ozone: 71.25 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:32 PM
Sunset: 9:05 PM
Daylight: 15 hrs 5 mins
Moonrise: 6:01 PM
Moon Transit: 10:00 PM
Moonset: 1:16 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
12:00 AM - 12:00 AM

Minor Periods

5:31 PM - 7:01 PM
12:46 AM - 2:16 AM

Action Rating: 4 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
100.1°F
62.8°F
78.2°F
34%
0 in
4%
0%
17 mph
9.4


Air Quality

AQI: 1 - Good
PM2.5: 4.07 μg/m3
PM10: 5.31 μg/m3
Carbon Monoxide: 104.5 μg/m3
Nitrogen Dioxide: 4.01 μg/m3
Sulphur Dioxide: 0.29 μg/m3
Ozone: 71.13 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:32 PM
Sunset: 9:04 PM
Daylight: 15 hrs 2 mins
Moonrise: 6:57 PM
Moon Transit: 10:50 PM
Moonset: 1:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
12:00 AM - 12:00 AM

Minor Periods

6:27 PM - 7:57 PM
1:26 AM - 2:56 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
101.4°F
61.8°F
81.4°F
32%
0 in
3%
0%
17.4 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 3.4 μg/m3
PM10: 4.95 μg/m3
Carbon Monoxide: 103.58 μg/m3
Nitrogen Dioxide: 4.29 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 76.75 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 1:32 PM
Sunset: 9:03 PM
Daylight: 15 hrs mins
Moonrise: 7:45 PM
Moon Transit: 11:42 PM
Moonset: 2:45 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

7:47 AM - 10:17 AM
12:00 AM - 12:00 AM

Minor Periods

7:15 PM - 8:45 PM
2:15 AM - 3:45 AM

Action Rating: 3 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
99.3°F
62.3°F
79.2°F
26%
0 in
2%
0%
12.1 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 4.58 μg/m3
PM10: 5.3 μg/m3
Carbon Monoxide: 111.35 μg/m3
Nitrogen Dioxide: 2.9 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 85.21 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:32 PM
Sunset: 9:02 PM
Daylight: 14 hrs 58 mins
Moonrise: 8:24 PM
Moon Transit: 12:00 AM
Moonset: 3:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:38 AM - 11:08 AM

Minor Periods

7:54 PM - 9:24 PM
3:12 AM - 4:42 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Sunny
97.4°F
58.6°F
77.9°F
25%
0 in
1%
0%
7.8 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 4.39 μg/m3
PM10: 5.13 μg/m3
Carbon Monoxide: 128.86 μg/m3
Nitrogen Dioxide: 11.5 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 54 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:32 PM
Sunset: 9:00 PM
Daylight: 14 hrs 56 mins
Moonrise: 8:55 PM
Moon Transit: 12:32 AM
Moonset: 4:47 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:02 AM - 2:32 AM
9:28 AM - 11:58 AM

Minor Periods

8:25 PM - 9:55 PM
4:17 AM - 5:47 AM

Action Rating: 4 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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