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

Current Water Temperature

45.1°F

Measurement Time: Friday, November 14, 2025, 8:00 PM MST

Temperature Locations

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Local Points of Interest

Old Faithful; Alta, WY

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Firehole River

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

Elevation Above Sea Level: 7,372 feet / 2,247 meters

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

39°F
Overcast
Conditions: Overcast
Humidity: 76%
Feels Like: 29.8°F
Wind: WSW 17.7 mph
Wind Gusts: 20.3 mph
Pressure: 30.1 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 1 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Sat
H: 36°F
L: 30°F
Mist
Sun
H: 41°F
L: 27°F
Moderate or heavy snow showers
Mon
H: 35°F
L: 27°F
Light snow
Tue
H: 35°F
L: 23°F
Mist
Wed
H: 33°F
L: 20°F

Air Quality

AQI: 1 - Good
PM2.5: 4.38 μg/m3
PM10: 9.88 μg/m3
Carbon Monoxide: 118.68 μg/m3
Nitrogen Dioxide: 2.18 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 78 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:07 AM
Sunset: 4:56 PM
Daylight: 9 hrs 36 mins
Moonrise: 2:48 AM
Moon Transit: 8:52 AM
Moonset: 2:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

8:22 AM - 10:52 AM
5:51 PM - 8:21 PM

Minor Periods

2:16 PM - 3:46 PM
2:18 AM - 3:48 AM

Action Rating: 2 out of 5

Saturday, November 15, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 33.8°F
Average Humidity: 97%
Chance of Rain: 0%
Wind: 18.1 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 3.96 μg/m3
PM10: 7.79 μg/m3
Carbon Monoxide: 116.48 μg/m3
Nitrogen Dioxide: 1.86 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 81.24 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:07 AM
Sunset: 4:56 PM
Daylight: 9 hrs 36 mins
Moonrise: 2:48 AM
Moon Transit: 8:52 AM
Moonset: 2:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

8:22 AM - 10:52 AM
5:51 PM - 8:21 PM

Minor Periods

2:16 PM - 3:46 PM
2:18 AM - 3:48 AM

Action Rating: 2 out of 5

Sunday, November 16, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 33°F
Average Humidity: 94%
Chance of Rain: 88%
Wind: 5.4 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 3.25 μg/m3
PM10: 4.24 μg/m3
Carbon Monoxide: 115.52 μg/m3
Nitrogen Dioxide: 2.38 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 81.88 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:08 AM
Sunset: 4:55 PM
Daylight: 9 hrs 33 mins
Moonrise: 3:52 AM
Moon Transit: 9:32 AM
Moonset: 3:02 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

6:31 PM - 9:01 PM
9:02 AM - 11:32 AM

Minor Periods

2:32 PM - 4:02 PM
3:22 AM - 4:52 AM

Action Rating: 2 out of 5

Monday, November 17, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 31°F
Average Humidity: 93%
Chance of Rain: 62%
Wind: 9.8 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.06 μg/m3
PM10: 1.62 μg/m3
Carbon Monoxide: 126.28 μg/m3
Nitrogen Dioxide: 2.35 μg/m3
Sulphur Dioxide: 0.86 μg/m3
Ozone: 78.2 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:08 AM
Sunset: 4:54 PM
Daylight: 9 hrs 31 mins
Moonrise: 4:56 AM
Moon Transit: 10:13 AM
Moonset: 3:21 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

7:12 PM - 9:42 PM
9:43 AM - 12:13 AM

Minor Periods

2:51 PM - 4:21 PM
4:26 AM - 5:56 AM

Action Rating: 2 out of 5

Tuesday, November 18, 2025

Weather Forecast

Conditions: Light snow
Average Temperature: 30.4°F
Average Humidity: 89%
Chance of Rain: 85%
Wind: 6.9 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 1.55 μg/m3
PM10: 3.71 μg/m3
Carbon Monoxide: 126.28 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 77.8 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:08 AM
Sunset: 4:53 PM
Daylight: 9 hrs 29 mins
Moonrise: 6:01 AM
Moon Transit: 10:55 AM
Moonset: 3:42 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

7:56 PM - 10:26 PM
10:25 AM - 12:55 AM

Minor Periods

3:12 PM - 4:42 PM
5:31 AM - 7:01 AM

Action Rating: 4 out of 5

Wednesday, November 19, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 25.3°F
Average Humidity: 93%
Chance of Rain: 64%
Wind: 9.8 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 2.67 μg/m3
PM10: 5.45 μg/m3
Carbon Monoxide: 136.68 μg/m3
Nitrogen Dioxide: 5.62 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 77.77 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:08 AM
Sunset: 4:52 PM
Daylight: 9 hrs 27 mins
Moonrise: 7:07 AM
Moon Transit: 11:41 AM
Moonset: 4:08 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

8:42 PM - 11:12 PM
11:11 AM - 1:41 PM

Minor Periods

3:38 PM - 5:08 PM
6:37 AM - 8:07 AM

Action Rating: 4 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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