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

Current Water Temperature

111.4°F

Measurement Time: Thursday, May 14, 2026, 11:15 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

28.8°F
Sunny
Sunny
23.5°F
28.8°F
66%
S 5.1 mph
10.8 mph
23.5°F
15.8°F
0 in
6%
6 mi
1013 mbar
0

Five Day Weather Forecast

Partly Cloudy
Fri
H: 57°F
L: 25°F
Patchy rain nearby
Sat
H: 56°F
L: 25°F
Moderate rain
Sun
H: 42°F
L: 17°F
Patchy rain nearby
Mon
H: 51°F
L: 15°F
Light rain shower
Tue
H: 48°F
L: 17°F

Air Quality

AQI: 1 - Good
PM2.5: 2.45 μg/m3
PM10: 3.75 μg/m3
Carbon Monoxide: 126.85 μg/m3
Nitrogen Dioxide: 0.95 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 114 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:19 PM
Sunset: 8:46 PM
Daylight: 14 hrs 52 mins
Moonrise: 4:44 AM
Moon Transit: 12:12 AM
Moonset: 7:58 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

9:18 PM - 11:48 PM
11:42 AM - 2:12 PM

Minor Periods

7:28 PM - 8:58 PM
4:14 AM - 5:44 AM

Action Rating: 5 out of 5

Friday, May 15, 2026

Weather Forecast

Partly Cloudy
57.3°F
25.4°F
43°F
41%
0 in
0%
0%
17.9 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 2.59 μg/m3
PM10: 4.59 μg/m3
Carbon Monoxide: 124.21 μg/m3
Nitrogen Dioxide: 1.73 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 101.44 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:19 PM
Sunset: 8:46 PM
Daylight: 14 hrs 52 mins
Moonrise: 4:44 AM
Moon Transit: 12:12 AM
Moonset: 7:58 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

9:18 PM - 11:48 PM
11:42 AM - 2:12 PM

Minor Periods

7:28 PM - 8:58 PM
4:14 AM - 5:44 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Patchy rain nearby
56.4°F
25.4°F
42.4°F
51%
0.07 in
88%
3%
18.3 mph
5.6


Air Quality

AQI: 1 - Good
PM2.5: 3.31 μg/m3
PM10: 6.21 μg/m3
Carbon Monoxide: 133.17 μg/m3
Nitrogen Dioxide: 2.23 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 97.64 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:19 PM
Sunset: 8:47 PM
Daylight: 14 hrs 54 mins
Moonrise: 5:15 AM
Moon Transit: 1:11 PM
Moonset: 9:23 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:41 AM - 3:11 PM

Minor Periods

8:53 PM - 10:23 PM
4:45 AM - 6:15 AM

Action Rating: 5 out of 5

Sunday, May 17, 2026

Weather Forecast

Moderate rain
41.7°F
17.3°F
34.3°F
70%
0.25 in
84%
17%
10.7 mph
6.2


Air Quality

AQI: 1 - Good
PM2.5: 2.48 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 129.61 μg/m3
Nitrogen Dioxide: 1.34 μg/m3
Sulphur Dioxide: 1.74 μg/m3
Ozone: 99.52 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:19 PM
Sunset: 8:48 PM
Daylight: 14 hrs 57 mins
Moonrise: 5:58 AM
Moon Transit: 2:16 PM
Moonset: 10:45 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:46 PM - 4:16 PM

Minor Periods

10:15 PM - 11:45 PM
5:28 AM - 6:58 AM

Action Rating: 4 out of 5

Monday, May 18, 2026

Weather Forecast

Patchy rain nearby
51°F
14.6°F
33.1°F
59%
0.02 in
89%
4%
11 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 1.95 μg/m3
PM10: 2.27 μg/m3
Carbon Monoxide: 125.4 μg/m3
Nitrogen Dioxide: 1.67 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 85.96 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:19 PM
Sunset: 8:49 PM
Daylight: 14 hrs 59 mins
Moonrise: 6:54 AM
Moon Transit: 3:23 PM
Moonset: 11:53 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:53 PM - 5:23 PM

Minor Periods

12:00 AM - 12:00 AM
6:24 AM - 7:54 AM

Action Rating: 3 out of 5

Tuesday, May 19, 2026

Weather Forecast

Light rain shower
48.1°F
16.9°F
32.3°F
63%
0.13 in
65%
0%
8.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.77 μg/m3
PM10: 1.9 μg/m3
Carbon Monoxide: 128.64 μg/m3
Nitrogen Dioxide: 2.58 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 85.15 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:19 PM
Sunset: 8:50 PM
Daylight: 15 hrs 1 mins
Moonrise: 8:04 AM
Moon Transit: 4:29 PM
Moonset: 12:53 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 AM
3:59 PM - 6:29 PM

Minor Periods

7:34 AM - 9:04 AM
12:00 AM - 12:00 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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