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

Current Water Temperature

45.9°F

Measurement Time: Tuesday, October 21, 2025, 1:00 PM MDT

Temperature Locations

View Nearby Locations     View All Wyoming Locations     View Locations Near Me

Local Points of Interest

Old Faithful; Alta, WY

Sponsored Content

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

28.9°F
Clear
Conditions: Clear
Humidity: 89%
Feels Like: 24°F
Wind: SSW 4.5 mph
Wind Gusts: 9.4 mph
Pressure: 30.33 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Tue
H: 40°F
L: 27°F
Sunny
Wed
H: 47°F
L: 27°F
Sunny
Thu
H: 45°F
L: 35°F
Partly Cloudy
Fri
H: 47°F
L: 31°F
Patchy rain nearby
Sat
H: 46°F
L: 30°F

Air Quality

AQI: 1 - Good
PM2.5: 2.38 μg/m3
PM10: 3.78 μg/m3
Carbon Monoxide: 115.68 μg/m3
Nitrogen Dioxide: 2.58 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 92 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 1:07 PM
Sunset: 6:29 PM
Daylight: 10 hrs 42 mins
Moonrise: 8:05 AM
Moon Transit: 1:14 PM
Moonset: 6:15 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:44 AM - 3:14 PM

Minor Periods

5:45 PM - 7:15 PM
7:35 AM - 9:05 AM

Action Rating: 4 out of 5

Tuesday, October 21, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 32.3°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 10.5 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 2.11 μg/m3
PM10: 3.31 μg/m3
Carbon Monoxide: 120.04 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 88.96 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 1:07 PM
Sunset: 6:29 PM
Daylight: 10 hrs 42 mins
Moonrise: 8:05 AM
Moon Transit: 1:14 PM
Moonset: 6:15 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:44 AM - 3:14 PM

Minor Periods

5:45 PM - 7:15 PM
7:35 AM - 9:05 AM

Action Rating: 4 out of 5

Wednesday, October 22, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 36.7°F
Average Humidity: 58%
Chance of Rain: 0%
Wind: 8.1 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 2.21 μg/m3
PM10: 3.41 μg/m3
Carbon Monoxide: 115.32 μg/m3
Nitrogen Dioxide: 2.11 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 7:48 AM
Sun Transit: 1:07 PM
Sunset: 6:27 PM
Daylight: 10 hrs 39 mins
Moonrise: 9:10 AM
Moon Transit: 1:57 PM
Moonset: 6:38 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:27 PM - 3:57 PM

Minor Periods

6:08 PM - 7:38 PM
8:40 AM - 10:10 AM

Action Rating: 4 out of 5

Thursday, October 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 38.4°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 2.19 μg/m3
PM10: 2.87 μg/m3
Carbon Monoxide: 112.96 μg/m3
Nitrogen Dioxide: 2.31 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 101.4 μg/m3

Astronomical

Sunrise: 7:49 AM
Sun Transit: 1:07 PM
Sunset: 6:25 PM
Daylight: 10 hrs 36 mins
Moonrise: 10:17 AM
Moon Transit: 2:43 PM
Moonset: 7:05 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:13 PM - 4:43 PM

Minor Periods

6:35 PM - 8:05 PM
9:47 AM - 11:17 AM

Action Rating: 4 out of 5

Friday, October 24, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 37.2°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 11 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 5.57 μg/m3
Carbon Monoxide: 126.32 μg/m3
Nitrogen Dioxide: 2.64 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 99.72 μg/m3

Astronomical

Sunrise: 7:51 AM
Sun Transit: 1:07 PM
Sunset: 6:24 PM
Daylight: 10 hrs 33 mins
Moonrise: 11:21 AM
Moon Transit: 3:32 PM
Moonset: 7:39 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:02 PM - 5:32 PM

Minor Periods

7:09 PM - 8:39 PM
10:51 AM - 12:21 AM

Action Rating: 2 out of 5

Saturday, October 25, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 36.4°F
Average Humidity: 64%
Chance of Rain: 88%
Wind: 20.1 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 2.75 μg/m3
PM10: 4.39 μg/m3
Carbon Monoxide: 125.52 μg/m3
Nitrogen Dioxide: 1.72 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 101 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 1:07 PM
Sunset: 6:22 PM
Daylight: 10 hrs 30 mins
Moonrise: 12:23 AM
Moon Transit: 4:23 PM
Moonset: 8:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 12.2%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
3:53 PM - 6:23 PM

Minor Periods

7:53 PM - 9:23 PM
11:53 AM - 1:23 PM

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.

Webcams Near Yellowstone National Park, WY

Sponsored Content