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

Current Water Temperature

119.5°F

Measurement Time: Monday, July 13, 2026, 1:15 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

70.8°F
Sunny
Sunny
60.8°F
74.9°F
39%
ENE 4.9 mph
10.3 mph
70.8°F
44.6°F
0 in
12%
6 mi
1014 mbar
0.2

Five Day Weather Forecast

Sunny
Mon
H: 93°F
L: 45°F
Sunny
Tue
H: 93°F
L: 47°F
Partly Cloudy
Wed
H: 85°F
L: 47°F
Sunny
Thu
H: 86°F
L: 45°F
Sunny
Fri
H: 89°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 3.2 μg/m3
PM10: 4.9 μg/m3
Carbon Monoxide: 97 μg/m3
Nitrogen Dioxide: 1.8 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:28 PM
Sunset: 9:08 PM
Daylight: 15 hrs 19 mins
Moonrise: 4:27 AM
Moon Transit: 12:52 AM
Moonset: 9:08 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:22 AM - 2:52 PM

Minor Periods

8:38 PM - 10:08 PM
3:57 AM - 5:27 AM

Action Rating: 5 out of 5

Extreme Heat Warning issued July 13 at 2:16AM MDT until July 14 at 9:00PM MDT by NWS Riverton WY

Effective: Mon July 13, 2026, 2:16 AM
Expires: Mon July 13, 2026, 6:15 PM

* WHAT...Dangerously hot conditions with temperatures from 100 to 105 degrees below 6,000 feet and 90 to 100 degrees between 6,000 and 7,000 feet each day. * WHERE...Portions of central, north central, northwest, south central, southwest, and west central Wyoming. * WHEN...Until 9 PM MDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Extreme Heat Warning issued July 13 at 11:50AM MDT until July 14 at 9:00PM MDT by NWS Riverton WY

Effective: Mon July 13, 2026, 11:50 AM
Expires: Tue July 14, 2026, 8:00 AM

* WHAT...Dangerously hot conditions with temperatures from 100 to 105 degrees below 6,000 feet and 90 to 100 degrees between 6,000 and 7,000 feet each day. * WHERE...Portions of central, north central, northwest, south central, southwest, and west central Wyoming. * WHEN...Until 9 PM MDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Monday, July 13, 2026

Weather Forecast

Sunny
92.8°F
45.3°F
68.2°F
38%
0 in
1%
0%
9.2 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 2.97 μg/m3
PM10: 4.65 μg/m3
Carbon Monoxide: 95.71 μg/m3
Nitrogen Dioxide: 3.34 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 79.67 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:28 PM
Sunset: 9:08 PM
Daylight: 15 hrs 19 mins
Moonrise: 4:27 AM
Moon Transit: 12:52 AM
Moonset: 9:08 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:22 AM - 2:52 PM

Minor Periods

8:38 PM - 10:08 PM
3:57 AM - 5:27 AM

Action Rating: 5 out of 5

Tuesday, July 14, 2026

Weather Forecast

Sunny
92.5°F
46.6°F
68.2°F
46%
0 in
4%
0%
8.5 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 4.57 μg/m3
PM10: 7 μg/m3
Carbon Monoxide: 96.79 μg/m3
Nitrogen Dioxide: 4.24 μg/m3
Sulphur Dioxide: 0.36 μg/m3
Ozone: 77.25 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:28 PM
Sunset: 9:07 PM
Daylight: 15 hrs 17 mins
Moonrise: 5:48 AM
Moon Transit: 1:56 PM
Moonset: 9:48 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:26 PM - 3:56 PM

Minor Periods

9:18 PM - 10:48 PM
5:18 AM - 6:48 AM

Action Rating: 4 out of 5

Wednesday, July 15, 2026

Weather Forecast

Partly Cloudy
85.1°F
47.4°F
65.5°F
60%
0.13 in
57%
0%
9.8 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 3.95 μg/m3
PM10: 5.57 μg/m3
Carbon Monoxide: 99.67 μg/m3
Nitrogen Dioxide: 3.94 μg/m3
Sulphur Dioxide: 0.24 μg/m3
Ozone: 79.54 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:28 PM
Sunset: 9:06 PM
Daylight: 15 hrs 16 mins
Moonrise: 7:13 AM
Moon Transit: 2:54 PM
Moonset: 10:18 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:24 PM - 4:54 PM

Minor Periods

9:48 PM - 11:18 PM
6:43 AM - 8:13 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
85.7°F
45.3°F
62.5°F
71%
0.08 in
57%
0%
8.7 mph
10.3


Air Quality

AQI: 1 - Good
PM2.5: 2.75 μg/m3
PM10: 4 μg/m3
Carbon Monoxide: 98.61 μg/m3
Nitrogen Dioxide: 3.84 μg/m3
Sulphur Dioxide: 0.13 μg/m3
Ozone: 80.54 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:28 PM
Sunset: 9:06 PM
Daylight: 15 hrs 14 mins
Moonrise: 8:36 AM
Moon Transit: 3:46 PM
Moonset: 10:42 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:16 PM - 5:46 PM

Minor Periods

10:12 PM - 11:42 PM
8:06 AM - 9:36 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
88.6°F
45°F
63.2°F
68%
0.05 in
57%
0%
13.4 mph
10.9


Air Quality

AQI: 1 - Good
PM2.5: 2.69 μg/m3
PM10: 3.49 μg/m3
Carbon Monoxide: 108.43 μg/m3
Nitrogen Dioxide: 8.37 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 47.57 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:29 PM
Sunset: 9:05 PM
Daylight: 15 hrs 12 mins
Moonrise: 9:54 AM
Moon Transit: 4:35 PM
Moonset: 11:02 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
4:05 PM - 6:35 PM

Minor Periods

12:00 AM - 12:00 AM
9:24 AM - 10:54 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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