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

Current Water Temperature

114.3°F

Measurement Time: Wednesday, May 20, 2026, 2:15 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

43.1°F
Patchy rain nearby
Patchy rain nearby
41.2°F
43.1°F
88%
N 4.7 mph
5.4 mph
41.2°F
39.3°F
0.01 in
82%
6 mi
1014 mbar
0.2

Five Day Weather Forecast

Moderate rain
Wed
H: 55°F
L: 23°F
Moderate rain
Thu
H: 42°F
L: 28°F
Partly Cloudy
Fri
H: 61°F
L: 18°F
Patchy rain nearby
Sat
H: 62°F
L: 27°F
Patchy rain nearby
Sun
H: 71°F
L: 32°F

Air Quality

PM2.5: 1.45 μg/m3
PM10: 1.75 μg/m3
Carbon Monoxide: 118.85 μg/m3
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:19 PM
Sunset: 8:51 PM
Daylight: 15 hrs 3 mins
Moonrise: 9:23 AM
Moon Transit: 5:31 PM
Moonset: 12:46 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

1:38 AM - 4:08 AM
5:01 PM - 7:31 PM

Minor Periods

8:53 AM - 10:23 AM
12:16 AM - 1:46 AM

Action Rating: 2 out of 5

Winter Storm Warning issued May 20 at 12:55PM MDT until May 21 at 6:00PM MDT by NWS Billings MT

Effective: Wed May 20, 2026, 12:55 PM
Expires: Thu May 21, 2026, 1:00 PM

* WHAT...Heavy snow expected...mainly on north facing slopes above 7000 ft. Total snow accumulations 8-13 inches. Winds gusting as high as 30 mph. * WHERE...Absaroka/Beartooth Mountains. * WHEN...From 6 PM this evening to 6 PM MDT Thursday. * IMPACTS...Recreation in the high country will be impacted by heavy accumulating snow.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest road conditions, call 5 1 1.
Wednesday, May 20, 2026

Weather Forecast

Moderate rain
55°F
22.7°F
41.2°F
66%
0.22 in
86%
3%
7.8 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 4.16 μg/m3
PM10: 6.12 μg/m3
Carbon Monoxide: 120.09 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 94.56 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:19 PM
Sunset: 8:51 PM
Daylight: 15 hrs 3 mins
Moonrise: 9:23 AM
Moon Transit: 5:31 PM
Moonset: 12:46 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

1:38 AM - 4:08 AM
5:01 PM - 7:31 PM

Minor Periods

8:53 AM - 10:23 AM
12:16 AM - 1:46 AM

Action Rating: 2 out of 5

Thursday, May 21, 2026

Weather Forecast

Moderate rain
42.2°F
27.6°F
39.3°F
94%
0.23 in
88%
0%
8.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.63 μg/m3
PM10: 2.16 μg/m3
Carbon Monoxide: 121.08 μg/m3
Nitrogen Dioxide: 1.89 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 88.72 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:19 PM
Sunset: 8:52 PM
Daylight: 15 hrs 5 mins
Moonrise: 10:44 AM
Moon Transit: 6:26 PM
Moonset: 1:24 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
5:56 PM - 8:26 PM

Minor Periods

10:14 AM - 11:44 AM
12:54 AM - 2:24 AM

Action Rating: 3 out of 5

Friday, May 22, 2026

Weather Forecast

Partly Cloudy
60.6°F
17.8°F
40°F
67%
0 in
0%
3%
5.6 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 1.85 μg/m3
PM10: 2.2 μg/m3
Carbon Monoxide: 128.47 μg/m3
Nitrogen Dioxide: 1.98 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 103.88 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:19 PM
Sunset: 8:53 PM
Daylight: 15 hrs 7 mins
Moonrise: 12:02 AM
Moon Transit: 7:17 PM
Moonset: 1:54 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

3:31 AM - 6:01 AM
6:47 PM - 9:17 PM

Minor Periods

11:32 AM - 1:02 PM
1:24 AM - 2:54 AM

Action Rating: 4 out of 5

Saturday, May 23, 2026

Weather Forecast

Patchy rain nearby
62.2°F
26.8°F
42.7°F
69%
0.01 in
84%
0%
11.6 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 2.85 μg/m3
PM10: 3.87 μg/m3
Carbon Monoxide: 122.54 μg/m3
Nitrogen Dioxide: 2.6 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 102 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:19 PM
Sunset: 8:54 PM
Daylight: 15 hrs 9 mins
Moonrise: 1:16 PM
Moon Transit: 8:03 PM
Moonset: 2:17 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
7:33 PM - 10:03 PM

Minor Periods

12:46 AM - 2:16 PM
1:47 AM - 3:17 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
70.7°F
31.7°F
50.9°F
60%
0.01 in
85%
0%
14.8 mph
3


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:19 PM
Sunset: 8:55 PM
Daylight: 15 hrs 11 mins
Moonrise: 2:26 PM
Moon Transit: 8:46 PM
Moonset: 2:37 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
8:16 PM - 10:46 PM

Minor Periods

1:56 PM - 3:26 PM
2:07 AM - 3:37 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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