Water Temperature of the Firehole River in Yellowstone National Park, WY

Current Water Temperature

52.0°F

Measurement Time: Saturday, June 6, 2026, 8:00 PM MDT

Temperature Locations

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Local Points of Interest

Old Faithful; Alta, WY

Firehole River

Station Name: Firehole River at Old Faithful, YNP
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 7,372 feet

Nearest Address:
Mallard Lake Trail
Yellowstone National Park, WY 82190
Teton County

GPS Coordinates: 44.4593333, -110.8222722

Nearby Water Temperatures

Firehole River, Yellowstone National Park, WY (11.3 mi)
Gibbon River, Yellowstone National Park, WY (12.7 mi)
Madison River, West Yellowstone, MT (18.2 mi)
Tantalus Creek, Yellowstone National Park, WY (19.6 mi)
Snake River, Flagg Ranch, WY (26.1 mi)
Boiling River Hot Springs, Yellowstone National Park, WY (36.9 mi)
Madison River, Grayling, MT (37.9 mi)
Lamar River, Yellowstone National Park, WY (38.6 mi)
Snake River, Moran, WY (43.1 mi)
Yellowstone River, Corwin Springs, MT (45.1 mi)
Buffalo Fork River, Moran, WY (46.9 mi)
Madison River, Cameron, MT (47.6 mi)
Blackrock Creek, Moran, WY (55.2 mi)
Snake River, Moose, WY (55.9 mi)
Fish Creek, Wilson, WY (66.3 mi)

Weather for Yellowstone National Park, Wyoming

Current Weather

43.6°F
Clear
Clear
39.9°F
43.6°F
63%
SSW 6 mph
12.7 mph
40.1°F
32.9°F
0 in
11%
6 mi
1004 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 54°F
L: 34°F
Patchy rain nearby
Mon
H: 58°F
L: 33°F
Moderate rain
Tue
H: 46°F
L: 33°F
Moderate rain
Wed
H: 45°F
L: 29°F
Patchy rain nearby
Thu
H: 52°F
L: 24°F

Air Quality

AQI: 1 - Good
PM2.5: 4.6 μg/m3
PM10: 23.8 μg/m3
Carbon Monoxide: 105 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:22 PM
Sunset: 9:05 PM
Daylight: 15 hrs 26 mins
Moonrise: 1:23 AM
Moon Transit: 6:51 AM
Moonset: 12:31 AM
Moon Phase: Last Quarter
Moon Illumination: 42.6%

Best Times for Fishing or Hunting

Major Periods

6:21 AM - 8:51 AM
3:51 PM - 6:21 PM

Minor Periods

12:01 AM - 1:31 PM
12:53 AM - 2:23 AM

Action Rating: 2 out of 5

Wind Advisory issued June 6 at 12:15PM MDT until June 7 at 9:00PM MDT by NWS Pocatello ID

Effective: Sat June 6, 2026, 12:15 PM
Expires: Sun June 7, 2026, 6:00 AM

* WHAT...Southwest winds 25 to 35 mph with gusts up to 50 mph expected. Gusts up to 55 mph are possible across portions of the Snake Plain. * WHERE...Beaverhead - Lemhi Highlands, Centennial Mountains - Island Park, Eastern Magic Valley, Shoshone/Lava Beds, Arco/Mud Lake Desert, Lower Snake River Plain, and Upper Snake River Plain. * WHEN...From 6 AM to 9 PM MDT Sunday. * IMPACTS...Gusty winds could make driving difficult, especially for high profile vehicles. Unsecured objects may be blown around. Strong winds and rough waves on area lakes will create hazardous conditions for small craft.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft.
Sunday, June 7, 2026

Weather Forecast

Sunny
53.5°F
34.2°F
46.1°F
51%
0 in
73%
0%
24.2 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 4.05 μg/m3
PM10: 14.72 μg/m3
Carbon Monoxide: 102.46 μg/m3
Nitrogen Dioxide: 0.78 μg/m3
Sulphur Dioxide: 0.21 μg/m3
Ozone: 105.21 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:22 PM
Sunset: 9:05 PM
Daylight: 15 hrs 26 mins
Moonrise: 1:23 AM
Moon Transit: 6:51 AM
Moonset: 12:31 AM
Moon Phase: Last Quarter
Moon Illumination: 42.6%

Best Times for Fishing or Hunting

Major Periods

6:21 AM - 8:51 AM
3:51 PM - 6:21 PM

Minor Periods

12:01 AM - 1:31 PM
12:53 AM - 2:23 AM

Action Rating: 2 out of 5

Monday, June 8, 2026

Weather Forecast

Patchy rain nearby
57.5°F
33.1°F
45.9°F
39%
0.01 in
73%
0%
18.1 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 2.69 μg/m3
PM10: 6.65 μg/m3
Carbon Monoxide: 99.08 μg/m3
Nitrogen Dioxide: 1.18 μg/m3
Sulphur Dioxide: 0.27 μg/m3
Ozone: 110.25 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:22 PM
Sunset: 9:06 PM
Daylight: 15 hrs 27 mins
Moonrise: 1:42 AM
Moon Transit: 7:34 AM
Moonset: 1:40 PM
Moon Phase: Last Quarter
Moon Illumination: 31.6%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

1:10 PM - 2:40 PM
1:12 AM - 2:42 AM

Action Rating: 2 out of 5

Tuesday, June 9, 2026

Weather Forecast

Moderate rain
46°F
32.8°F
41°F
83%
0.55 in
92%
0%
20.6 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 2.77 μg/m3
PM10: 6.29 μg/m3
Carbon Monoxide: 102.42 μg/m3
Nitrogen Dioxide: 1.23 μg/m3
Sulphur Dioxide: 0.12 μg/m3
Ozone: 77.75 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:22 PM
Sunset: 9:07 PM
Daylight: 15 hrs 28 mins
Moonrise: 2:01 AM
Moon Transit: 4:27 AM
Moonset: 2:52 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
3:57 AM - 6:27 AM

Minor Periods

2:22 PM - 3:52 PM
1:31 AM - 3:01 AM

Action Rating: 2 out of 5

Wednesday, June 10, 2026

Weather Forecast

Moderate rain
45.3°F
28.7°F
36.2°F
77%
0.32 in
86%
79%
17.7 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 1.04 μg/m3
PM10: 3.99 μg/m3
Carbon Monoxide: 103.18 μg/m3
Nitrogen Dioxide: 1.08 μg/m3
Sulphur Dioxide: 0.09 μg/m3
Ozone: 66.42 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:22 PM
Sunset: 9:07 PM
Daylight: 15 hrs 29 mins
Moonrise: 2:21 AM
Moon Transit: 9:05 AM
Moonset: 4:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:35 AM - 11:05 AM
6:08 PM - 8:38 PM

Minor Periods

3:37 PM - 5:07 PM
1:51 AM - 3:21 AM

Action Rating: 3 out of 5

Thursday, June 11, 2026

Weather Forecast

Patchy rain nearby
51.7°F
23.6°F
36.9°F
69%
0 in
73%
2%
13.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 0.57 μg/m3
PM10: 0.73 μg/m3
Carbon Monoxide: 110.71 μg/m3
Nitrogen Dioxide: 2.54 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 74.14 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:23 PM
Sunset: 9:08 PM
Daylight: 15 hrs 30 mins
Moonrise: 2:44 AM
Moon Transit: 9:56 AM
Moonset: 5:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

7:01 PM - 9:31 PM
9:26 AM - 11:56 AM

Minor Periods

4:56 PM - 6:26 PM
2:14 AM - 3:44 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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