Water Temperature of the Jefferson River in Waterloo, MT

Current Water Temperature

47.5°F

Measurement Time: Thursday, October 23, 2025, 12:30 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

53.1°F
Clear
Conditions: Clear
Humidity: 27%
Feels Like: 51.6°F
Wind: SSW 5.4 mph
Wind Gusts: 11.3 mph
Pressure: 30.12 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Thu
H: 64°F
L: 35°F
Sunny
Fri
H: 65°F
L: 26°F
Overcast
Sat
H: 55°F
L: 32°F
Partly Cloudy
Sun
H: 39°F
L: 25°F
Light freezing rain
Mon
H: 43°F
L: 22°F

Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 4.95 μg/m3
Carbon Monoxide: 127.85 μg/m3
Nitrogen Dioxide: 12.85 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 41 μg/m3

Astronomical

Sunrise: 7:57 AM
Sun Transit: 1:13 PM
Sunset: 6:29 PM
Daylight: 10 hrs 32 mins
Moonrise: 10:28 AM
Moon Transit: 2:49 PM
Moonset: 7:05 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:19 PM - 4:49 PM

Minor Periods

6:35 PM - 8:05 PM
9:58 AM - 11:28 AM

Action Rating: 4 out of 5

High Wind Watch issued October 23 at 1:03PM MDT until October 25 at 9:00PM MDT by NWS Great Falls MT

Effective: Thu October 23, 2025, 1:03 PM
Expires: Fri October 24, 2025, 6:15 AM

* WHAT...South winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...The Interstate 90 Corridor between Bozeman and Whitehall, and Beaverhead and Western Madison below 6000ft. * WHEN...From late Saturday morning through early Saturday evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Any showers that develop Saturday afternoon will assist in mixing stronger gusts to the surface.

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.


High Wind Watch issued October 23 at 12:36AM MDT until October 25 at 9:00PM MDT by NWS Great Falls MT

Effective: Thu October 23, 2025, 12:36 AM
Expires: Thu October 23, 2025, 6:00 PM

* WHAT...South winds 30 to 40 mph, with gusts up to 60 mph possible. * WHERE...Madison River Valley. * WHEN...From Saturday morning through Saturday 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.


High Wind Watch issued October 23 at 1:03PM MDT until October 25 at 9:00PM MDT by NWS Great Falls MT

Effective: Thu October 23, 2025, 1:03 PM
Expires: Fri October 24, 2025, 6:15 AM

* WHAT...South winds 30 to 40 mph, with gusts up to 60 mph possible. * WHERE...Madison River Valley. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Any showers that develop Saturday afternoon will assist in mixing stronger gusts to the surface.

Monitor the latest forecasts and warnings for updates.


Thursday, October 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 49.2°F
Average Humidity: 37%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 2.69 μg/m3
PM10: 3.03 μg/m3
Carbon Monoxide: 134.53 μg/m3
Nitrogen Dioxide: 6.98 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 60.48 μg/m3

Astronomical

Sunrise: 7:57 AM
Sun Transit: 1:13 PM
Sunset: 6:29 PM
Daylight: 10 hrs 32 mins
Moonrise: 10:28 AM
Moon Transit: 2:49 PM
Moonset: 7:05 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:19 PM - 4:49 PM

Minor Periods

6:35 PM - 8:05 PM
9:58 AM - 11:28 AM

Action Rating: 4 out of 5

Friday, October 24, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 46.2°F
Average Humidity: 40%
Chance of Rain: 0%
Wind: 17 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 3.87 μg/m3
PM10: 4.14 μg/m3
Carbon Monoxide: 130.57 μg/m3
Nitrogen Dioxide: 7.44 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 63.04 μg/m3

Astronomical

Sunrise: 7:58 AM
Sun Transit: 1:12 PM
Sunset: 6:27 PM
Daylight: 10 hrs 29 mins
Moonrise: 11:33 AM
Moon Transit: 3:38 PM
Moonset: 7:39 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:08 PM - 5:38 PM

Minor Periods

7:09 PM - 8:39 PM
11:03 AM - 12:33 AM

Action Rating: 2 out of 5

Saturday, October 25, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 41.6°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 28.6 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 4.57 μg/m3
PM10: 4.91 μg/m3
Carbon Monoxide: 139.69 μg/m3
Nitrogen Dioxide: 3.72 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 71.64 μg/m3

Astronomical

Sunrise: 8:00 AM
Sun Transit: 1:12 PM
Sunset: 6:26 PM
Daylight: 10 hrs 26 mins
Moonrise: 12:35 AM
Moon Transit: 4:29 PM
Moonset: 8:22 PM
Moon Phase: Waxing Crescent
Moon Illumination: 12.2%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
3:59 PM - 6:29 PM

Minor Periods

7:52 PM - 9:22 PM
12:05 AM - 1:35 PM

Action Rating: 3 out of 5

Sunday, October 26, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 32.5°F
Average Humidity: 66%
Chance of Rain: 0%
Wind: 20.6 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 2.28 μg/m3
PM10: 3.01 μg/m3
Carbon Monoxide: 122.09 μg/m3
Nitrogen Dioxide: 2.18 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 82.16 μg/m3

Astronomical

Sunrise: 8:01 AM
Sun Transit: 1:12 PM
Sunset: 6:24 PM
Daylight: 10 hrs 23 mins
Moonrise: 1:29 PM
Moon Transit: 5:21 PM
Moonset: 9:14 PM
Moon Phase: Waxing Crescent
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

1:21 AM - 3:51 AM
4:51 PM - 7:21 PM

Minor Periods

8:44 PM - 10:14 PM
12:59 AM - 2:29 PM

Action Rating: 2 out of 5

Monday, October 27, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 30.8°F
Average Humidity: 48%
Chance of Rain: 81%
Wind: 17.2 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 1.68 μg/m3
PM10: 1.93 μg/m3
Carbon Monoxide: 127.08 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 75.23 μg/m3

Astronomical

Sunrise: 8:02 AM
Sun Transit: 1:12 PM
Sunset: 6:22 PM
Daylight: 10 hrs 20 mins
Moonrise: 2:14 PM
Moon Transit: 6:13 PM
Moonset: 10:17 PM
Moon Phase: Waxing Crescent
Moon Illumination: 30.3%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
5:43 PM - 8:13 PM

Minor Periods

9:47 PM - 11:17 PM
1:44 PM - 3:14 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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