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

Current Water Temperature

129.4°F

Measurement Time: Saturday, July 18, 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

47.6°F
Clear
Clear
46°F
47.6°F
78%
SSE 4 mph
8.5 mph
46°F
41°F
0 in
15%
6 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 88°F
L: 47°F
Sunny
Mon
H: 89°F
L: 45°F
Patchy rain nearby
Tue
H: 89°F
L: 45°F
Patchy rain nearby
Wed
H: 83°F
L: 47°F
Sunny
Thu
H: 80°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 4.8 μg/m3
PM10: 6.3 μg/m3
Carbon Monoxide: 91 μg/m3
Nitrogen Dioxide: 10.4 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 49 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

Severe Thunderstorm Watch issued July 18 at 3:46PM MDT until July 18 at 10:00PM MDT by NWS Billings MT

Effective: Sat July 18, 2026, 3:46 PM
Expires: Sat July 18, 2026, 10:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 497 IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR THE FOLLOWING AREAS IN MONTANA THIS WATCH INCLUDES 3 COUNTIES IN CENTRAL MONTANA WHEATLAND IN SOUTH CENTRAL MONTANA PARK SWEET GRASS THIS INCLUDES THE CITIES OF BIG TIMBER, HARLOWTON, AND LIVINGSTON.
Sunday, July 19, 2026

Weather Forecast

Sunny
88.3°F
46.9°F
67.5°F
48%
0 in
2%
0%
11.2 mph
11.1


Air Quality

AQI: 1 - Good
PM2.5: 3.7 μg/m3
PM10: 4.77 μg/m3
Carbon Monoxide: 93.63 μg/m3
Nitrogen Dioxide: 4.29 μg/m3
Sulphur Dioxide: 0.15 μg/m3
Ozone: 78.38 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
89°F
45.4°F
66.9°F
39%
0 in
1%
0%
8.5 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 6.6 μg/m3
PM10: 7.38 μg/m3
Carbon Monoxide: 99.17 μg/m3
Nitrogen Dioxide: 4.21 μg/m3
Sulphur Dioxide: 0.33 μg/m3
Ozone: 96.67 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
88.9°F
45.3°F
63.1°F
60%
0.1 in
57%
0%
9.4 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 5.35 μg/m3
PM10: 6.3 μg/m3
Carbon Monoxide: 107.33 μg/m3
Nitrogen Dioxide: 4.23 μg/m3
Sulphur Dioxide: 0.36 μg/m3
Ozone: 82.71 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

Patchy rain nearby
82.9°F
47.2°F
63.3°F
75%
0.57 in
77%
0%
7.2 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 4.18 μg/m3
PM10: 5.02 μg/m3
Carbon Monoxide: 108.33 μg/m3
Nitrogen Dioxide: 3.72 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 74.63 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

Thursday, July 23, 2026

Weather Forecast

Sunny
80.3°F
48.2°F
64.2°F
70%
0.07 in
57%
0%
5.8 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 4.26 μg/m3
PM10: 4.7 μg/m3
Carbon Monoxide: 130 μg/m3
Nitrogen Dioxide: 6.77 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 52.43 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:29 PM
Sunset: 8:59 PM
Daylight: 15 hrs 1 mins
Moonrise: 4:49 PM
Moon Transit: 9:05 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

5:20 AM - 7:50 AM
8:35 PM - 11:05 PM

Minor Periods

4:19 PM - 5:49 PM
12:16 AM - 1:46 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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