Water Temperature of the Snake River in Flagg Ranch, WY

Current Water Temperature

46.2°F

Measurement Time: Sunday, October 19, 2025, 12:30 PM MDT

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

41.7°F
Light rain
Conditions: Light rain
Humidity: 89%
Feels Like: 37.3°F
Wind: W 6.7 mph
Wind Gusts: 12.6 mph
Pressure: 29.89 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 8 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Sun
H: 53°F
L: 26°F
Cloudy
Mon
H: 35°F
L: 19°F
Mist
Tue
H: 48°F
L: 13°F
Sunny
Wed
H: 55°F
L: 21°F
Sunny
Thu
H: 51°F
L: 27°F

Air Quality

AQI: 1 - Good
PM2.5: 1.95 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 119.85 μg/m3
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 1:07 PM
Sunset: 6:32 PM
Daylight: 10 hrs 49 mins
Moonrise: 5:54 AM
Moon Transit: 11:51 AM
Moonset: 5:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

8:52 PM - 11:22 PM
11:21 AM - 1:51 PM

Minor Periods

5:08 PM - 6:38 PM
5:24 AM - 6:54 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued October 19 at 1:03AM MDT until October 20 at 12:00PM MDT by NWS Riverton WY

Effective: Sun October 19, 2025, 1:03 AM
Expires: Sun October 19, 2025, 6:15 PM

* WHAT...Snow expected. Total snow accumulations 6 to 10 inches, mainly above 8000 feet. Winds gusting as high as 60 mph. * WHERE...Absaroka Mountains and Teton and Gros Ventre Mountains. * WHEN...From noon today to noon MDT Monday. The most impactful conditions are expected tonight. * IMPACTS...Plan on slippery road conditions, especially over mountain passes.

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 .


Winter Weather Advisory issued October 19 at 1:20PM MDT until October 20 at 12:00PM MDT by NWS Riverton WY

Effective: Sun October 19, 2025, 1:20 PM
Expires: Mon October 20, 2025, 12:00 PM

* WHAT...Snow and blowing snow as a result of strong winds are expected. Total snow accumulations 6 to 10 inches, mainly above 8000 feet. Winds gusting as high as 60 mph. Locally stronger winds around Chief Joseph Hwy 60 to 70 mph are expected through Sunday evening. * WHERE...Absaroka Mountains and Teton and Gros Ventre Mountains. * WHEN...Until Noon MDT Monday. Greatest impacts will occur overnight. * IMPACTS...Plan on slippery road conditions, especially over mountain passes. Travel across Togwotee Pass could be particularly difficult due to strong winds and falling snow. Occasional near white-out conditions are possible. * ADDITIONAL DETAILS...Strongest winds will occur during the day Sunday through Sunday evening. Snow will begin later Sunday afternoon, generally after 6 PM. The combination of wind and snow will be the primary threat with this event.

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 .


Sunday, October 19, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 34.9°F
Average Humidity: 74%
Chance of Rain: 75%
Wind: 16.6 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 3.49 μg/m3
PM10: 5.51 μg/m3
Carbon Monoxide: 120.89 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 93.96 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 1:07 PM
Sunset: 6:32 PM
Daylight: 10 hrs 49 mins
Moonrise: 5:54 AM
Moon Transit: 11:51 AM
Moonset: 5:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

8:52 PM - 11:22 PM
11:21 AM - 1:51 PM

Minor Periods

5:08 PM - 6:38 PM
5:24 AM - 6:54 AM

Action Rating: 3 out of 5

Monday, October 20, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 28.9°F
Average Humidity: 83%
Chance of Rain: 0%
Wind: 14.5 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 2.07 μg/m3
PM10: 4.34 μg/m3
Carbon Monoxide: 118.93 μg/m3
Nitrogen Dioxide: 2.02 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 79.28 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 1:07 PM
Sunset: 6:30 PM
Daylight: 10 hrs 46 mins
Moonrise: 6:59 AM
Moon Transit: 12:32 AM
Moonset: 5:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:02 AM - 2:32 PM

Minor Periods

5:26 PM - 6:56 PM
6:29 AM - 7:59 AM

Action Rating: 4 out of 5

Tuesday, October 21, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 27.7°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 3.6 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 2.33 μg/m3
PM10: 3.84 μg/m3
Carbon Monoxide: 117.93 μg/m3
Nitrogen Dioxide: 2.59 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 90.56 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 1:07 PM
Sunset: 6:29 PM
Daylight: 10 hrs 43 mins
Moonrise: 8:03 AM
Moon Transit: 1:13 PM
Moonset: 6:15 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:43 AM - 3:13 PM

Minor Periods

5:45 PM - 7:15 PM
7:33 AM - 9:03 AM

Action Rating: 4 out of 5

Wednesday, October 22, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 33.9°F
Average Humidity: 56%
Chance of Rain: 0%
Wind: 2.5 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 2.25 μg/m3
PM10: 3.01 μg/m3
Carbon Monoxide: 109.45 μg/m3
Nitrogen Dioxide: 3.27 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 102.6 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 1:07 PM
Sunset: 6:27 PM
Daylight: 10 hrs 40 mins
Moonrise: 9:09 AM
Moon Transit: 1:57 PM
Moonset: 6:38 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:27 PM - 3:57 PM

Minor Periods

6:08 PM - 7:38 PM
8:39 AM - 10:09 AM

Action Rating: 4 out of 5

Thursday, October 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 35.6°F
Average Humidity: 61%
Chance of Rain: 0%
Wind: 4.5 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 2.15 μg/m3
PM10: 2.77 μg/m3
Carbon Monoxide: 124.7 μg/m3
Nitrogen Dioxide: 4.29 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 94.38 μg/m3

Astronomical

Sunrise: 7:48 AM
Sun Transit: 1:06 PM
Sunset: 6:25 PM
Daylight: 10 hrs 37 mins
Moonrise: 10:15 AM
Moon Transit: 2:43 PM
Moonset: 7:06 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:13 PM - 4:43 PM

Minor Periods

6:36 PM - 8:06 PM
9:45 AM - 11:15 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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