Water Temperature of the Jefferson River in Waterloo, MT

Current Water Temperature

69.6°F

Measurement Time: Saturday, August 2, 2025, 5:30 PM 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 / 1,352 meters

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 (18.0 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 (46.0 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

55.9°F
Clear
Conditions: Clear
Humidity: 72%
Feels Like: 57°F
Wind: SW 2.2 mph
Wind Gusts: 4.2 mph
Pressure: 30.29 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Sun
H: 82°F
L: 44°F
Moderate rain
Mon
H: 84°F
L: 45°F
Sunny
Tue
H: 80°F
L: 42°F
Sunny
Wed
H: 88°F
L: 49°F
Patchy rain nearby
Thu
H: 81°F
L: 51°F

Air Quality

PM2.5: 13.32 μg/m3
PM10: 13.88 μg/m3
Carbon Monoxide: 236.8 μg/m3
Nitrogen Dioxide: 22.94 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 44 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:34 PM
Sunset: 8:54 PM
Daylight: 14 hrs 39 mins
Moonrise: 5:07 PM
Moon Transit: 9:09 PM
Moonset: 12:33 AM
Moon Phase: First Quarter
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

5:10 AM - 7:40 AM
8:39 PM - 11:09 PM

Minor Periods

4:37 PM - 6:07 PM
12:03 AM - 1:33 AM

Action Rating: 3 out of 5

Sunday, August 3, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 64.9°F
Average Humidity: 46%
Chance of Rain: 0%
Wind: 9.8 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 9.22 μg/m3
PM10: 9.96 μg/m3
Carbon Monoxide: 231.4 μg/m3
Nitrogen Dioxide: 12.03 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 86.56 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:34 PM
Sunset: 8:54 PM
Daylight: 14 hrs 39 mins
Moonrise: 5:07 PM
Moon Transit: 9:09 PM
Moonset: 12:33 AM
Moon Phase: First Quarter
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

5:10 AM - 7:40 AM
8:39 PM - 11:09 PM

Minor Periods

4:37 PM - 6:07 PM
12:03 AM - 1:33 AM

Action Rating: 3 out of 5

Monday, August 4, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 62.4°F
Average Humidity: 65%
Chance of Rain: 84%
Wind: 15.7 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 8.4 μg/m3
PM10: 9.23 μg/m3
Carbon Monoxide: 216.97 μg/m3
Nitrogen Dioxide: 11.68 μg/m3
Sulphur Dioxide: 0.49 μg/m3
Ozone: 90.32 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 1:34 PM
Sunset: 8:53 PM
Daylight: 14 hrs 37 mins
Moonrise: 6:09 PM
Moon Transit: 10:02 PM
Moonset: 1:08 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
12:00 AM - 12:00 AM

Minor Periods

5:39 PM - 7:09 PM
12:38 AM - 2:08 AM

Action Rating: 3 out of 5

Tuesday, August 5, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 62.7°F
Average Humidity: 57%
Chance of Rain: 0%
Wind: 13.6 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 9 μg/m3
PM10: 10.97 μg/m3
Carbon Monoxide: 215.71 μg/m3
Nitrogen Dioxide: 8.09 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 84.64 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 1:34 PM
Sunset: 8:52 PM
Daylight: 14 hrs 34 mins
Moonrise: 7:04 PM
Moon Transit: 10:56 PM
Moonset: 1:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

6:55 AM - 9:25 AM
12:00 AM - 12:00 AM

Minor Periods

6:34 PM - 8:04 PM
1:24 AM - 2:54 AM

Action Rating: 2 out of 5

Wednesday, August 6, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 68.9°F
Average Humidity: 30%
Chance of Rain: 0%
Wind: 14.8 mph
UV Index: 6

Air Quality

AQI: 1 - Good
PM2.5: 5.71 μg/m3
PM10: 6.03 μg/m3
Carbon Monoxide: 284.9 μg/m3
Nitrogen Dioxide: 15.84 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 1:34 PM
Sunset: 8:50 PM
Daylight: 14 hrs 32 mins
Moonrise: 7:49 PM
Moon Transit: 11:51 PM
Moonset: 2:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.4%

Best Times for Fishing or Hunting

Major Periods

7:50 AM - 10:20 AM
12:00 AM - 12:00 AM

Minor Periods

7:19 PM - 8:49 PM
2:22 AM - 3:52 AM

Action Rating: 3 out of 5

Thursday, August 7, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 62.4°F
Average Humidity: 40%
Chance of Rain: 55%
Wind: 17.4 mph
UV Index: 4

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: 6:20 AM
Sun Transit: 1:34 PM
Sunset: 8:49 PM
Daylight: 14 hrs 29 mins
Moonrise: 8:25 PM
Moon Transit: 12:00 AM
Moonset: 3:59 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:44 AM - 11:14 AM

Minor Periods

7:55 PM - 9:25 PM
3:29 AM - 4:59 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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