Water Temperature of the Jefferson River in Waterloo, MT

Current Water Temperature

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Jefferson River

Station Name: Jefferson River at Parsons Bdg nr Silver Star, MT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 4,436 feet

Nearest Address:
650 Waterloo Rd
Waterloo, MT 59105
Silver Bow County

GPS Coordinates: 45.74750278, -112.1872278

Nearby Water Temperatures

Jefferson River, Twin Bridges, MT (11.5 mi)
Ruby River, Twin Bridges, MT (18 mi)
Big Hole River, Glen, MT (27.7 mi)
Jefferson River, Three Forks, MT (30.3 mi)
Madison River, Norris, MT (32.1 mi)
Madison River, Ennis, MT (41.3 mi)
Warm Springs Creek, Warm Springs, MT (41.5 mi)
Missouri River, Toston, MT (46 mi)
Big Hole River, Wisdom, MT (61.9 mi)
Madison River, Cameron, MT (66.2 mi)
Madison River, Grayling, MT (73.5 mi)
Camas Creek, White Sulphur Springs, MT (79.9 mi)
Yellowstone River, Corwin Springs, MT (80.6 mi)
Missouri River, Wolf Creek, MT (86.6 mi)
Boiling River Hot Springs, Yellowstone National Park, WY (89.8 mi)

Weather for Waterloo, Montana

Current Weather

46.9°F
Heavy rain at times
Heavy rain at times
45°F
46.9°F
83%
NW 4.5 mph
5.1 mph
44°F
42.2°F
0.05 in
86%
1 mi
1006 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 54°F
L: 42°F
Light rain
Mon
H: 50°F
L: 40°F
Partly Cloudy
Tue
H: 67°F
L: 43°F
Patchy rain nearby
Wed
H: 73°F
L: 42°F
Sunny
Thu
H: 82°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 1 μg/m3
PM10: 1.2 μg/m3
Carbon Monoxide: 92 μg/m3
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 72 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:32 PM
Sunset: 9:22 PM
Daylight: 15 hrs 41 mins
Moonrise: 9:03 PM
Moon Transit: 12:07 AM
Moonset: 4:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:58 AM - 11:28 AM

Minor Periods

8:33 PM - 10:03 PM
3:33 AM - 5:03 AM

Action Rating: 2 out of 5

Winter Weather Advisory issued June 27 at 12:44PM MDT until June 29 at 12:00PM MDT by NWS Great Falls MT

Effective: Sat June 27, 2026, 6:44 PM
Expires: Sun June 28, 2026, 12:00 PM

* WHAT...Periods of wet snow expected. Total snow accumulations up to 5 inches above 6500 feet, with localized amounts in excess of 9 inches near highest peaks. * WHERE...Elkhorn and Boulder Mountains, Gallatin and Madison County Mountains and Centennial Mountains, and Ruby Mountains and Southern Beaverhead Mountains. * WHEN...From 6 PM this evening to noon MDT Monday. * IMPACTS...Plan on cold and wet backcountry conditions with a heightened hypothermia risk for those not properly dressed. Wet snow may down trees and block access to forest roadways. * ADDITIONAL DETAILS...Campers should be aware that it only takes a few inches of snow to damage tents and other recreational items.

Monitor the latest forecasts for updates on this situation.


Winter Weather Advisory issued June 28 at 12:41AM MDT until June 29 at 12:00PM MDT by NWS Great Falls MT

Effective: Sun June 28, 2026, 6:41 AM
Expires: Mon June 29, 2026, 12:00 AM

* WHAT...Periods of wet snow expected. Total snow accumulations up to 5 inches above 6500 feet, with localized amounts in excess of 9 inches near highest peaks. * WHERE...Elkhorn and Boulder Mountains, Gallatin and Madison County Mountains and Centennial Mountains, and Ruby Mountains and Southern Beaverhead Mountains. * WHEN...Until noon MDT Monday. * IMPACTS...Plan on cold and wet backcountry conditions with a heightened hypothermia risk for those not properly dressed. Wet snow may down trees and block access to forest roadways. * ADDITIONAL DETAILS...Campers should be aware that it only takes a few inches of snow to damage tents and other recreational items.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
Sunday, June 28, 2026

Weather Forecast

Patchy rain nearby
53.8°F
41.6°F
46°F
89%
1.44 in
90%
0%
12.3 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 0.46 μg/m3
PM10: 0.54 μg/m3
Carbon Monoxide: 91.17 μg/m3
Nitrogen Dioxide: 1.14 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 65.83 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:32 PM
Sunset: 9:22 PM
Daylight: 15 hrs 41 mins
Moonrise: 9:03 PM
Moon Transit: 12:07 AM
Moonset: 4:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:58 AM - 11:28 AM

Minor Periods

8:33 PM - 10:03 PM
3:33 AM - 5:03 AM

Action Rating: 2 out of 5

Monday, June 29, 2026

Weather Forecast

Light rain
50.3°F
39.6°F
44.4°F
90%
0.64 in
92%
0%
18.1 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 0.06 μg/m3
PM10: 0.06 μg/m3
Carbon Monoxide: 89.67 μg/m3
Nitrogen Dioxide: 1.61 μg/m3
Sulphur Dioxide: 0.16 μg/m3
Ozone: 54.88 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:32 PM
Sunset: 9:22 PM
Daylight: 15 hrs 40 mins
Moonrise: 9:48 PM
Moon Transit: 12:58 AM
Moonset: 4:55 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:28 AM - 2:58 AM
9:50 AM - 12:20 AM

Minor Periods

9:18 PM - 10:48 PM
4:25 AM - 5:55 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Partly Cloudy
66.5°F
42.5°F
52.8°F
72%
0.04 in
47%
0%
6.3 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 0.85 μg/m3
PM10: 1 μg/m3
Carbon Monoxide: 94.54 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 0.12 μg/m3
Ozone: 51.67 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:32 PM
Sunset: 9:22 PM
Daylight: 15 hrs 40 mins
Moonrise: 10:25 PM
Moon Transit: 1:49 AM
Moonset: 5:54 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

1:19 AM - 3:49 AM
10:41 AM - 1:11 PM

Minor Periods

9:55 PM - 11:25 PM
5:24 AM - 6:54 AM

Action Rating: 4 out of 5

Wednesday, July 1, 2026

Weather Forecast

Patchy rain nearby
73.4°F
41.7°F
56°F
65%
0.08 in
57%
0%
14.1 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 1.08 μg/m3
PM10: 1.33 μg/m3
Carbon Monoxide: 99.19 μg/m3
Nitrogen Dioxide: 3.53 μg/m3
Sulphur Dioxide: 0.14 μg/m3
Ozone: 61.17 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:32 PM
Sunset: 9:22 PM
Daylight: 15 hrs 39 mins
Moonrise: 10:53 PM
Moon Transit: 2:39 AM
Moonset: 7:00 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

2:09 AM - 4:39 AM
11:30 AM - 2:00 PM

Minor Periods

10:23 PM - 11:53 PM
6:30 AM - 8:00 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
82.4°F
44.5°F
62.5°F
49%
0.01 in
17%
0%
18.8 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 2.63 μg/m3
PM10: 2.84 μg/m3
Carbon Monoxide: 118.71 μg/m3
Nitrogen Dioxide: 9.66 μg/m3
Sulphur Dioxide: 0.24 μg/m3
Ozone: 43 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:32 PM
Sunset: 9:22 PM
Daylight: 15 hrs 38 mins
Moonrise: 11:16 PM
Moon Transit: 3:26 AM
Moonset: 8:08 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:56 AM - 5:26 AM
12:16 AM - 2:46 PM

Minor Periods

12:00 AM - 12:00 AM
7:38 AM - 9:08 AM

Action Rating: 3 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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