Water Temperature of the Snake River in Flagg Ranch, WY

Current Water Temperature

45.1°F

Measurement Time: Monday, November 17, 2025, 11:30 AM MST

Temperature Locations

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Snake River

Station Name: SNAKE RIVER AB JACKSON LAKE AT FLAGG RANCH WY
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 6,818 feet / 2,078 meters

Nearest Address:
John D Rockefeller Jr Pkwy
Flagg Ranch, WY 83414
Teton County

GPS Coordinates: 44.09888889, -110.6675

Nearby Water Temperatures

Snake River, Moran, WY (17.1 mi)
Buffalo Fork River, Moran, WY (21.3 mi)
Firehole River, Yellowstone National Park, WY (26.1 mi)
Snake River, Moose, WY (30.8 mi)
Blackrock Creek, Moran, WY (31.6 mi)
Firehole River, Yellowstone National Park, WY (37.3 mi)
Gibbon River, Yellowstone National Park, WY (38.6 mi)
Fish Creek, Wilson, WY (42.6 mi)
Madison River, West Yellowstone, MT (43.3 mi)
Tantalus Creek, Yellowstone National Park, WY (43.8 mi)
Cache Creek, Jackson, WY (44.7 mi)
Flat Creek, Jackson, WY (44.7 mi)
Snake River, Jackson, WY (50.3 mi)
Hoback River, Hoback, WY (54.8 mi)
Lamar River, Yellowstone National Park, WY (58.9 mi)

Weather for Flagg Ranch, Wyoming

Current Weather

37.9°F
Overcast
Conditions: Overcast
Humidity: 85%
Feels Like: 36.7°F
Wind: W 2.5 mph
Wind Gusts: 3 mph
Pressure: 29.94 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Mon
H: 39°F
L: 30°F
Freezing fog
Tue
H: 40°F
L: 29°F
Freezing fog
Wed
H: 39°F
L: 25°F
Partly Cloudy
Thu
H: 43°F
L: 21°F
Sunny
Fri
H: 43°F
L: 21°F

Air Quality

AQI: 1 - Good
PM2.5: 1.35 μg/m3
PM10: 1.35 μg/m3
Carbon Monoxide: 129.85 μg/m3
Nitrogen Dioxide: 3.45 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 56 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:07 AM
Sunset: 4:54 PM
Daylight: 9 hrs 33 mins
Moonrise: 4:55 AM
Moon Transit: 10:12 AM
Moonset: 3:21 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

7:13 PM - 9:43 PM
9:42 AM - 12:12 AM

Minor Periods

2:51 PM - 4:21 PM
4:25 AM - 5:55 AM

Action Rating: 2 out of 5

Winter Weather Advisory issued November 17 at 12:36AM MST until November 17 at 5:00PM MST by NWS Riverton WY

Effective: Mon November 17, 2025, 12:36 AM
Expires: Mon November 17, 2025, 5:00 PM

* WHAT...Snow. Additional snow accumulations up to 6 inches with higher amounts of 8 to 10 inches across the higher western facing peaks. Winds gusting as high as 35 mph at times. * WHERE...Wind River Mountains West, Teton and Gros Ventre Mountains, and Salt River and Wyoming Ranges. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Travel could be difficult. The hazardous conditions could impact travel on Monday, especially the Monday morning commute over Teton and Togwotee passes along with Salt River Pass.

Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter. For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info.
Monday, November 17, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 34.4°F
Average Humidity: 96%
Chance of Rain: 66%
Wind: 4.5 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 3.47 μg/m3
PM10: 4.17 μg/m3
Carbon Monoxide: 125.49 μg/m3
Nitrogen Dioxide: 3.68 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 66.8 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:07 AM
Sunset: 4:54 PM
Daylight: 9 hrs 33 mins
Moonrise: 4:55 AM
Moon Transit: 10:12 AM
Moonset: 3:21 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

7:13 PM - 9:43 PM
9:42 AM - 12:12 AM

Minor Periods

2:51 PM - 4:21 PM
4:25 AM - 5:55 AM

Action Rating: 2 out of 5

Tuesday, November 18, 2025

Weather Forecast

Conditions: Freezing fog
Average Temperature: 32.5°F
Average Humidity: 93%
Chance of Rain: 0%
Wind: 2.9 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 1.37 μg/m3
PM10: 1.4 μg/m3
Carbon Monoxide: 127.69 μg/m3
Nitrogen Dioxide: 2.96 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 61.96 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:07 AM
Sunset: 4:53 PM
Daylight: 9 hrs 31 mins
Moonrise: 6:00 AM
Moon Transit: 10:55 AM
Moonset: 3:42 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

7:57 PM - 10:27 PM
10:25 AM - 12:55 AM

Minor Periods

3:12 PM - 4:42 PM
5:30 AM - 7:00 AM

Action Rating: 4 out of 5

Wednesday, November 19, 2025

Weather Forecast

Conditions: Freezing fog
Average Temperature: 30.7°F
Average Humidity: 94%
Chance of Rain: 86%
Wind: 2.9 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 2.29 μg/m3
PM10: 2.46 μg/m3
Carbon Monoxide: 115.05 μg/m3
Nitrogen Dioxide: 2.89 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 72.44 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:08 AM
Sunset: 4:52 PM
Daylight: 9 hrs 29 mins
Moonrise: 7:05 AM
Moon Transit: 11:40 AM
Moonset: 4:09 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

8:43 PM - 11:13 PM
11:10 AM - 1:40 PM

Minor Periods

3:39 PM - 5:09 PM
6:35 AM - 8:05 AM

Action Rating: 4 out of 5

Thursday, November 20, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 28.5°F
Average Humidity: 86%
Chance of Rain: 0%
Wind: 2.7 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 2.19 μg/m3
PM10: 2.39 μg/m3
Carbon Monoxide: 121.05 μg/m3
Nitrogen Dioxide: 2.68 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 73.04 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:08 AM
Sunset: 4:52 PM
Daylight: 9 hrs 27 mins
Moonrise: 8:11 AM
Moon Transit: 12:28 AM
Moonset: 4:42 PM
Moon Phase: New
Moon Illumination: 2.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:58 AM - 2:28 PM

Minor Periods

4:12 PM - 5:42 PM
7:41 AM - 9:11 AM

Action Rating: 4 out of 5

Friday, November 21, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 27.6°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 4.3 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 1.63 μg/m3
PM10: 1.67 μg/m3
Carbon Monoxide: 131.31 μg/m3
Nitrogen Dioxide: 3.7 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 72.23 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:08 AM
Sunset: 4:51 PM
Daylight: 9 hrs 25 mins
Moonrise: 9:12 AM
Moon Transit: 1:18 PM
Moonset: 5:22 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:48 AM - 3:18 PM

Minor Periods

4:52 PM - 6:22 PM
8:42 AM - 10:12 AM

Action Rating: 4 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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