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

Current Water Temperature

129.2°F

Measurement Time: Friday, July 17, 2026, 8:15 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

60.2°F
Mist
Mist
51.8°F
60.2°F
97%
NNE 2.2 mph
2.6 mph
60.2°F
59.3°F
0 in
80%
1 mi
1019 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 88°F
L: 47°F
Sunny
Sun
H: 89°F
L: 48°F
Sunny
Mon
H: 86°F
L: 45°F
Patchy rain nearby
Tue
H: 88°F
L: 46°F
Partly Cloudy
Wed
H: 83°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 3 μg/m3
PM10: 3.3 μg/m3
Carbon Monoxide: 96 μg/m3
Nitrogen Dioxide: 5.8 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 60 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:29 PM
Sunset: 9:04 PM
Daylight: 15 hrs 11 mins
Moonrise: 11:07 AM
Moon Transit: 5:20 PM
Moonset: 12:02 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

1:37 AM - 4:07 AM
4:50 PM - 7:20 PM

Minor Periods

10:37 AM - 12:07 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Flood Watch issued July 17 at 9:45PM MDT until July 17 at 10:00PM MDT by NWS Riverton WY

Effective: Fri July 17, 2026, 9:45 PM
Expires: Fri July 17, 2026, 10:45 PM

The flooding threat has ended, although showers and storms will continue through the next few hours. Therefore, the Flood Watch will expire at 10 PM MDT this evening.
Saturday, July 18, 2026

Weather Forecast

Sunny
87.8°F
47°F
68.3°F
58%
0.08 in
57%
0%
8.5 mph
10.6


Air Quality

AQI: 1 - Good
PM2.5: 3.32 μg/m3
PM10: 4.23 μg/m3
Carbon Monoxide: 95.08 μg/m3
Nitrogen Dioxide: 2.9 μg/m3
Sulphur Dioxide: 0.12 μg/m3
Ozone: 78.92 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:29 PM
Sunset: 9:04 PM
Daylight: 15 hrs 11 mins
Moonrise: 11:07 AM
Moon Transit: 5:20 PM
Moonset: 12:02 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

1:37 AM - 4:07 AM
4:50 PM - 7:20 PM

Minor Periods

10:37 AM - 12:07 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
88.9°F
47.5°F
68.6°F
46%
0 in
3%
0%
11.6 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 3.28 μg/m3
PM10: 4.52 μg/m3
Carbon Monoxide: 92.17 μg/m3
Nitrogen Dioxide: 4.74 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 76.13 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:29 PM
Sunset: 9:03 PM
Daylight: 15 hrs 9 mins
Moonrise: 12:18 AM
Moon Transit: 6:04 PM
Moonset: 12:20 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

2:21 AM - 4:51 AM
5:34 PM - 8:04 PM

Minor Periods

11:48 AM - 1:18 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
86.4°F
44.8°F
65.7°F
37%
0 in
1%
0%
9.4 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 3.37 μg/m3
PM10: 4.1 μg/m3
Carbon Monoxide: 93.88 μg/m3
Nitrogen Dioxide: 3.92 μg/m3
Sulphur Dioxide: 0.19 μg/m3
Ozone: 81.29 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:29 PM
Sunset: 9:02 PM
Daylight: 15 hrs 7 mins
Moonrise: 1:27 PM
Moon Transit: 6:47 PM
Moonset: 12:39 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

3:05 AM - 5:35 AM
6:17 PM - 8:47 PM

Minor Periods

12:57 AM - 2:27 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, July 21, 2026

Weather Forecast

Patchy rain nearby
88.1°F
46.4°F
62.5°F
64%
0.17 in
63%
0%
7.8 mph
9.4


Air Quality

AQI: 1 - Good
PM2.5: 3 μg/m3
PM10: 4.04 μg/m3
Carbon Monoxide: 99.74 μg/m3
Nitrogen Dioxide: 3.98 μg/m3
Sulphur Dioxide: 0.25 μg/m3
Ozone: 78 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:29 PM
Sunset: 9:01 PM
Daylight: 15 hrs 5 mins
Moonrise: 2:36 PM
Moon Transit: 7:31 PM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

3:48 AM - 6:18 AM
7:01 PM - 9:31 PM

Minor Periods

2:06 PM - 3:36 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, July 22, 2026

Weather Forecast

Partly Cloudy
82.9°F
47.8°F
64.2°F
74%
0.34 in
75%
0%
5.1 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 2.21 μg/m3
PM10: 3.8 μg/m3
Carbon Monoxide: 109 μg/m3
Nitrogen Dioxide: 6.14 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 56.71 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:29 PM
Sunset: 9:00 PM
Daylight: 15 hrs 3 mins
Moonrise: 3:43 PM
Moon Transit: 8:17 PM
Moonset: 12:20 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

4:33 AM - 7:03 AM
7:47 PM - 10:17 PM

Minor Periods

3:13 PM - 4:43 PM
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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