Water Temperature of the Boiling River Hot Springs in Yellowstone National Park, WY

Current Water Temperature

113.4°F

Measurement Time: Friday, May 29, 2026, 5:15 PM MDT

Temperature Locations

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Local Points of Interest

Gardner River; Mammoth Hot Springs; Cody, WY

Boiling River Hot Springs

Station Name: Boiling River at Mammoth,YNP
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 5,686 feet

Nearest Address:
N Entrance Rd
Yellowstone National Park, WY 82190
Park County

GPS Coordinates: 44.9851333, -110.6893444

Nearby Water Temperatures

Yellowstone River, Corwin Springs, MT (10.1 mi)
Lamar River, Yellowstone National Park, WY (15 mi)
Tantalus Creek, Yellowstone National Park, WY (17.5 mi)
Gibbon River, Yellowstone National Park, WY (25.2 mi)
Firehole River, Yellowstone National Park, WY (26.6 mi)
Madison River, West Yellowstone, MT (29.3 mi)
Madison River, Grayling, MT (32.8 mi)
Firehole River, Yellowstone National Park, WY (36.9 mi)
Madison River, Cameron, MT (44.1 mi)
West Rosebud Creek, Roscoe, MT (51.7 mi)
Madison River, Ennis, MT (54.6 mi)
Madison River, Norris, MT (57.7 mi)
Snake River, Flagg Ranch, WY (61.2 mi)
Jefferson River, Three Forks, MT (76.8 mi)
Snake River, Moran, WY (78 mi)

Weather for Yellowstone National Park, Wyoming

Current Weather

41°F
Patchy rain nearby
Patchy rain nearby
39.4°F
41°F
90%
ESE 3.8 mph
8 mph
39.4°F
36.4°F
0 in
63%
6 mi
1008 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 76°F
L: 38°F
Moderate rain
Sat
H: 53°F
L: 38°F
Patchy rain nearby
Sun
H: 48°F
L: 30°F
Patchy rain nearby
Mon
H: 64°F
L: 25°F
Patchy rain nearby
Tue
H: 68°F
L: 30°F

Air Quality

AQI: 1 - Good
PM2.5: 6.55 μg/m3
PM10: 15.95 μg/m3
Carbon Monoxide: 112.85 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 99 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:20 PM
Sunset: 9:00 PM
Daylight: 15 hrs 19 mins
Moonrise: 8:01 PM
Moon Transit: 12:00 AM
Moonset: 4:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:40 AM - 11:10 AM

Minor Periods

7:31 PM - 9:01 PM
3:43 AM - 5:13 AM

Action Rating: 4 out of 5

Flash Flood Watch issued May 29 at 11:04AM MDT until May 31 at 12:00AM MDT by NWS Billings MT

Effective: Fri May 29, 2026, 11:04 AM
Expires: Sat May 30, 2026, 11:15 AM

* WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over the Elk, Robertson Draw, and East Side Burn Areas on Saturday. * WHERE...Portions of south central Montana, including the following areas, Absaroka/Beartooth Mountains and Red Lodge Foothills and north central Wyoming, including the following area, Northeast Bighorn Mountains. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...Periods of heavy rainfall with embedded thunderstorms are expected over the Elk, Robertson Draw, and East Side Burn Areas Saturday, possibly beginning early in the morning. Residents in and downstream of these burn scars should prepare for potential rapid runoff, flooding and debris flows. Narrow drainages and low-lying areas are especially prone to flood. Be sure to stay up to date with information from local authorities. * ADDITIONAL DETAILS... - Periods of heavy rainfall with embedded thunderstorms are expected across the region. The Elk Burn Area along the eastern slopes of the Bighorns, and the Robertson Draw and East Side Burn Areas south of Red Lodge, could experience flash flooding and debris flows. Stay alert! - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Friday, May 29, 2026

Weather Forecast

Patchy rain nearby
75.9°F
38.2°F
55.5°F
50%
0.13 in
86%
0%
13.4 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 4.46 μg/m3
PM10: 9.62 μg/m3
Carbon Monoxide: 113.2 μg/m3
Nitrogen Dioxide: 2.27 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 94.83 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:20 PM
Sunset: 9:00 PM
Daylight: 15 hrs 19 mins
Moonrise: 8:01 PM
Moon Transit: 12:00 AM
Moonset: 4:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:40 AM - 11:10 AM

Minor Periods

7:31 PM - 9:01 PM
3:43 AM - 5:13 AM

Action Rating: 4 out of 5

Saturday, May 30, 2026

Weather Forecast

Moderate rain
53.3°F
38.2°F
45.6°F
91%
0.38 in
93%
0%
7.2 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 4.51 μg/m3
PM10: 9.33 μg/m3
Carbon Monoxide: 113.35 μg/m3
Nitrogen Dioxide: 2.04 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 94.42 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:20 PM
Sunset: 9:01 PM
Daylight: 15 hrs 21 mins
Moonrise: 9:06 PM
Moon Transit: 12:24 AM
Moonset: 4:43 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:27 AM - 11:57 AM

Minor Periods

8:36 PM - 10:06 PM
4:13 AM - 5:43 AM

Action Rating: 5 out of 5

Sunday, May 31, 2026

Weather Forecast

Patchy rain nearby
47.7°F
29.9°F
43.4°F
91%
0.12 in
89%
0%
6.3 mph
2.6


Air Quality

AQI: 1 - Good
PM2.5: 0.99 μg/m3
PM10: 1.05 μg/m3
Carbon Monoxide: 115.49 μg/m3
Nitrogen Dioxide: 1.93 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 76.33 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:20 PM
Sunset: 9:02 PM
Daylight: 15 hrs 22 mins
Moonrise: 10:05 PM
Moon Transit: 1:14 AM
Moonset: 5:19 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:44 AM - 3:14 AM
10:18 AM - 12:48 AM

Minor Periods

9:35 PM - 11:05 PM
4:49 AM - 6:19 AM

Action Rating: 3 out of 5

Monday, June 1, 2026

Weather Forecast

Patchy rain nearby
64°F
25.3°F
45.7°F
55%
0 in
85%
0%
18.3 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 0.27 μg/m3
PM10: 0.29 μg/m3
Carbon Monoxide: 111.72 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 0.18 μg/m3
Ozone: 71.04 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:20 PM
Sunset: 9:02 PM
Daylight: 15 hrs 23 mins
Moonrise: 10:57 PM
Moon Transit: 2:04 AM
Moonset: 6:04 AM
Moon Phase: Full
Moon Illumination: 96.8%

Best Times for Fishing or Hunting

Major Periods

1:34 AM - 4:04 AM
11:09 AM - 1:39 PM

Minor Periods

10:27 PM - 11:57 PM
5:34 AM - 7:04 AM

Action Rating: 4 out of 5

Tuesday, June 2, 2026

Weather Forecast

Patchy rain nearby
67.7°F
29.6°F
49.4°F
52%
0.02 in
89%
9%
15.4 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 1.75 μg/m3
PM10: 3.25 μg/m3
Carbon Monoxide: 114.32 μg/m3
Nitrogen Dioxide: 1.63 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 86.17 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:20 PM
Sunset: 9:03 PM
Daylight: 15 hrs 25 mins
Moonrise: 11:39 PM
Moon Transit: 2:56 AM
Moonset: 6:58 AM
Moon Phase: Full
Moon Illumination: 91.7%

Best Times for Fishing or Hunting

Major Periods

2:26 AM - 4:56 AM
12:00 AM - 2:30 PM

Minor Periods

12:00 AM - 12:00 AM
6:28 AM - 7:58 AM

Action Rating: 3 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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