Water Temperature of the Jefferson River in Waterloo, MT

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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

30.9°F
Clear
Conditions: Clear
Humidity: 85%
Feels Like: 22.9°F
Wind: SSW 8.9 mph
Wind Gusts: 18.8 mph
Pressure: 29.9 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Tue
H: 55°F
L: 27°F
Cloudy
Wed
H: 44°F
L: 23°F
Freezing fog
Thu
H: 41°F
L: 27°F
Patchy moderate snow
Fri
H: 36°F
L: 24°F
Sunny
Sat
H: 33°F
L: 17°F

Air Quality

AQI: 1 - Good
PM2.5: 2.75 μg/m3
PM10: 2.95 μg/m3
Carbon Monoxide: 127.85 μg/m3
Nitrogen Dioxide: 3.65 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 50 μg/m3

Astronomical

Sunrise: 8:08 AM
Sun Transit: 12:28 AM
Sunset: 4:49 PM
Daylight: 8 hrs 41 mins
Moonrise: 10:49 AM
Moon Transit: 3:34 PM
Moonset: 8:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:04 PM - 5:34 PM

Minor Periods

7:59 PM - 9:29 PM
10:19 AM - 11:49 AM

Action Rating: 2 out of 5

Avalanche Warning issued December 22 at 5:18AM MST by NWS Great Falls MT

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Mon December 22, 2025, 12:18 PM
Expires: Tue December 23, 2025, 12:30 PM

AVWTFX The Gallatin National Forest Avalanche Center has issued an avalanche warning. * WHAT... The avalanche danger is HIGH on all slopes. Natural and human-triggered slides are very likely. * WHERE...The mountains near Island Park, West Yellowstone * WHEN...In effect through Tuesday 530 AM MST. * IMPACTS...Heavy snowfall on a snowpack with unstable weak layers will make human triggered avalanches very likely. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions exist. Backcountry travelers should stay off steep slopes and away from the bottom of steep slopes. Avalanches can be triggered from flat terrain. Steep slopes can avalanche far above and run into lower-angled terrain. Consult http://www.mtavalanche.com or www.avalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.


High Wind Watch issued December 22 at 12:33PM MST until December 24 at 9:00PM MST by NWS Great Falls MT

Effective: Mon December 22, 2025, 7:33 PM
Expires: Tue December 23, 2025, 12:00 PM

* WHAT...South winds 25 to 40 mph, with gusts up to 60 mph possible. * WHERE...Madison River Valley. * WHEN...From late Tuesday night through Wednesday evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.

Monitor the latest forecasts and warnings for updates. Remember, a High Wind Watch means that there is at least a 50% chance of 40 mph sustained winds or 58 mph wind gusts occurring during the watch period.
Tuesday, December 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 36.5°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 9.8 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 2.8 μg/m3
PM10: 3.17 μg/m3
Carbon Monoxide: 133.21 μg/m3
Nitrogen Dioxide: 4.72 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 56.28 μg/m3

Astronomical

Sunrise: 8:08 AM
Sun Transit: 12:28 AM
Sunset: 4:49 PM
Daylight: 8 hrs 41 mins
Moonrise: 10:49 AM
Moon Transit: 3:34 PM
Moonset: 8:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:04 PM - 5:34 PM

Minor Periods

7:59 PM - 9:29 PM
10:19 AM - 11:49 AM

Action Rating: 2 out of 5

Wednesday, December 24, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 31.1°F
Average Humidity: 92%
Chance of Rain: 0%
Wind: 21 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 6.09 μg/m3
PM10: 11.68 μg/m3
Carbon Monoxide: 134.29 μg/m3
Nitrogen Dioxide: 5.57 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 58.84 μg/m3

Astronomical

Sunrise: 8:08 AM
Sun Transit: 12:28 AM
Sunset: 4:49 PM
Daylight: 8 hrs 41 mins
Moonrise: 11:10 AM
Moon Transit: 4:19 PM
Moonset: 9:40 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.9%

Best Times for Fishing or Hunting

Major Periods

12:24 AM - 2:54 AM
3:49 PM - 6:19 PM

Minor Periods

9:10 PM - 10:40 PM
10:40 AM - 12:10 AM

Action Rating: 2 out of 5

Thursday, December 25, 2025

Weather Forecast

Conditions: Freezing fog
Average Temperature: 31.6°F
Average Humidity: 92%
Chance of Rain: 83%
Wind: 12.1 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 1.35 μg/m3
PM10: 1.67 μg/m3
Carbon Monoxide: 124.57 μg/m3
Nitrogen Dioxide: 4.97 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 61.08 μg/m3

Astronomical

Sunrise: 8:09 AM
Sun Transit: 12:29 AM
Sunset: 4:50 PM
Daylight: 8 hrs 41 mins
Moonrise: 11:29 AM
Moon Transit: 5:04 PM
Moonset: 10:52 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.7%

Best Times for Fishing or Hunting

Major Periods

1:09 AM - 3:39 AM
4:34 PM - 7:04 PM

Minor Periods

10:22 PM - 11:52 PM
10:59 AM - 12:29 AM

Action Rating: 3 out of 5

Friday, December 26, 2025

Weather Forecast

Conditions: Patchy moderate snow
Average Temperature: 29.4°F
Average Humidity: 73%
Chance of Rain: 84%
Wind: 17.2 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.28 μg/m3
PM10: 2.61 μg/m3
Carbon Monoxide: 131.75 μg/m3
Nitrogen Dioxide: 3.64 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 74.28 μg/m3

Astronomical

Sunrise: 8:09 AM
Sun Transit: 12:29 AM
Sunset: 4:51 PM
Daylight: 8 hrs 42 mins
Moonrise: 11:47 AM
Moon Transit: 5:48 PM
Moonset: 12:04 PM
Moon Phase: First Quarter
Moon Illumination: 40.5%

Best Times for Fishing or Hunting

Major Periods

1:53 AM - 4:23 AM
5:18 PM - 7:48 PM

Minor Periods

12:00 AM - 12:00 AM
11:17 AM - 12:47 AM

Action Rating: 3 out of 5

Saturday, December 27, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 23.2°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 13.9 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 3.12 μg/m3
PM10: 3.87 μg/m3
Carbon Monoxide: 141.1 μg/m3
Nitrogen Dioxide: 2.66 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 89.31 μg/m3

Astronomical

Sunrise: 8:09 AM
Sun Transit: 12:30 AM
Sunset: 4:51 PM
Daylight: 8 hrs 42 mins
Moonrise: 12:05 AM
Moon Transit: 2:23 AM
Moonset: 12:04 AM
Moon Phase: First Quarter
Moon Illumination: 51.8%

Best Times for Fishing or Hunting

Major Periods

1:53 AM - 4:23 AM
1:53 AM - 4:23 AM

Minor Periods

11:35 AM - 1:05 PM
12:00 AM - 12:00 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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