Water Temperature of the Jefferson River in Waterloo, MT

Current Water Temperature

65.3°F

Measurement Time: Thursday, August 27, 2026, 5:30 AM MDT

Temperature Locations

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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

75°F
Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
33%
SSW 7 mph
44°F

Weather Forecast

Chance Showers And Thunderstorms
This Afternoon
88°F - Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Patchy Smoke
Tonight
52°F - Slight Chance Showers And Thunderstorms then Patchy Smoke
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Friday
79°F - Chance Rain Showers then Slight Chance Showers And Thunderstorms
Chance Rain Showers
Friday Night
51°F - Chance Rain Showers
Rain Showers Likely
Saturday
76°F - Rain Showers Likely
Showers And Thunderstorms
Saturday Night
44°F - Showers And Thunderstorms
Showers And Thunderstorms Likely
Sunday
72°F - Showers And Thunderstorms Likely
Mostly Clear
Sunday Night
39°F - Mostly Clear
Sunny
Monday
77°F - Sunny
Mostly Clear
Monday Night
45°F - Mostly Clear
Sunny then Slight Chance Showers And Thunderstorms
Tuesday
79°F - Sunny then Slight Chance Showers And Thunderstorms
Chance Rain Showers then Mostly Cloudy
Tuesday Night
44°F - Chance Rain Showers then Mostly Cloudy
Mostly Sunny then Slight Chance Rain Showers
Wednesday
77°F - Mostly Sunny then Slight Chance Rain Showers
Mostly Cloudy
Wednesday Night
43°F - Mostly Cloudy

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:30 PM
Sunset: 8:16 PM
Daylight: 13 hrs 32 mins
Moonrise: 8:07 PM
Moon Transit: 12:50 AM
Moonset: 6:04 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 AM
9:40 AM - 12:10 AM

Minor Periods

7:37 PM - 9:07 PM
5:34 AM - 7:04 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:30 PM
Sunset: 8:16 PM
Daylight: 13 hrs 32 mins
Moonrise: 8:07 PM
Moon Transit: 12:50 AM
Moonset: 6:04 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 AM
9:40 AM - 12:10 AM

Minor Periods

7:37 PM - 9:07 PM
5:34 AM - 7:04 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:30 PM
Sunset: 8:16 PM
Daylight: 13 hrs 32 mins
Moonrise: 8:07 PM
Moon Transit: 12:50 AM
Moonset: 6:04 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 AM
9:40 AM - 12:10 AM

Minor Periods

7:37 PM - 9:07 PM
5:34 AM - 7:04 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:29 PM
Sunset: 8:14 PM
Daylight: 13 hrs 29 mins
Moonrise: 8:25 PM
Moon Transit: 1:35 AM
Moonset: 7:15 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

1:05 AM - 3:35 AM
10:24 AM - 12:54 AM

Minor Periods

7:55 PM - 9:25 PM
6:45 AM - 8:15 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:29 PM
Sunset: 8:14 PM
Daylight: 13 hrs 29 mins
Moonrise: 8:25 PM
Moon Transit: 1:35 AM
Moonset: 7:15 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

1:05 AM - 3:35 AM
10:24 AM - 12:54 AM

Minor Periods

7:55 PM - 9:25 PM
6:45 AM - 8:15 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:29 PM
Sunset: 8:12 PM
Daylight: 13 hrs 26 mins
Moonrise: 8:42 PM
Moon Transit: 10:49 PM
Moonset: 8:26 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:12 PM - 9:42 PM
7:56 AM - 9:26 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:29 PM
Sunset: 8:12 PM
Daylight: 13 hrs 26 mins
Moonrise: 8:42 PM
Moon Transit: 10:49 PM
Moonset: 8:26 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:12 PM - 9:42 PM
7:56 AM - 9:26 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:29 PM
Sunset: 8:10 PM
Daylight: 13 hrs 22 mins
Moonrise: 9:00 PM
Moon Transit: 3:02 AM
Moonset: 9:38 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

2:32 AM - 5:02 AM
11:52 AM - 2:22 PM

Minor Periods

8:30 PM - 10:00 PM
9:08 AM - 10:38 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:29 PM
Sunset: 8:10 PM
Daylight: 13 hrs 22 mins
Moonrise: 9:00 PM
Moon Transit: 3:02 AM
Moonset: 9:38 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

2:32 AM - 5:02 AM
11:52 AM - 2:22 PM

Minor Periods

8:30 PM - 10:00 PM
9:08 AM - 10:38 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:28 PM
Sunset: 8:08 PM
Daylight: 13 hrs 19 mins
Moonrise: 9:21 PM
Moon Transit: 3:48 AM
Moonset: 10:52 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:18 AM - 5:48 AM
12:38 AM - 3:08 PM

Minor Periods

8:51 PM - 10:21 PM
10:22 AM - 11:52 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:28 PM
Sunset: 8:08 PM
Daylight: 13 hrs 19 mins
Moonrise: 9:21 PM
Moon Transit: 3:48 AM
Moonset: 10:52 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:18 AM - 5:48 AM
12:38 AM - 3:08 PM

Minor Periods

8:51 PM - 10:21 PM
10:22 AM - 11:52 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:28 PM
Sunset: 8:07 PM
Daylight: 13 hrs 16 mins
Moonrise: 9:46 PM
Moon Transit: 4:36 AM
Moonset: 12:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

4:06 AM - 6:36 AM
1:28 PM - 3:58 PM

Minor Periods

9:16 PM - 10:46 PM
11:40 AM - 1:10 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:28 PM
Sunset: 8:07 PM
Daylight: 13 hrs 16 mins
Moonrise: 9:46 PM
Moon Transit: 4:36 AM
Moonset: 12:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

4:06 AM - 6:36 AM
1:28 PM - 3:58 PM

Minor Periods

9:16 PM - 10:46 PM
11:40 AM - 1:10 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:28 PM
Sunset: 8:05 PM
Daylight: 13 hrs 13 mins
Moonrise: 10:18 PM
Moon Transit: 5:29 AM
Moonset: 1:29 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:59 AM - 7:29 AM
2:22 PM - 4:52 PM

Minor Periods

9:48 PM - 11:18 PM
12:59 AM - 2:29 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:28 PM
Sunset: 8:05 PM
Daylight: 13 hrs 13 mins
Moonrise: 10:18 PM
Moon Transit: 5:29 AM
Moonset: 1:29 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:59 AM - 7:29 AM
2:22 PM - 4:52 PM

Minor Periods

9:48 PM - 11:18 PM
12:59 AM - 2:29 PM

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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