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

Current Water Temperature

36.9°F 2.7°C
Frigid Dangerously Cold
36.9°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Severe hypothermia and cold water shock risk. Unprotected swimming causes rapid loss of dexterity in under 5 minutes.

Measurement Time: Saturday, November 14, 2026, 3:15 PM MST

Temperature Locations

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Local Points of Interest

Yellowstone River; Buffalo Ford, WY; Tower Junction, WY; Cody, WY

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Lamar River

Station Name: Lamar River nr Tower Ranger Station YNP
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 6,024 feet

Nearest Address:
Tower Ranger Station
Yellowstone National Park, WY 82190
Park County

GPS Coordinates: 44.92817778, -110.3942694

Nearby Water Temperatures

Boiling River Hot Springs, Yellowstone National Park, WY (15 mi)
Tantalus Creek, Yellowstone National Park, WY (20.7 mi)
Yellowstone River, Corwin Springs, MT (23.3 mi)
Gibbon River, Yellowstone National Park, WY (30.3 mi)
Firehole River, Yellowstone National Park, WY (31.3 mi)
Madison River, West Yellowstone, MT (38 mi)
Firehole River, Yellowstone National Park, WY (38.6 mi)
West Rosebud Creek, Roscoe, MT (40.7 mi)
Madison River, Grayling, MT (46.4 mi)
Madison River, Cameron, MT (58.1 mi)
Snake River, Flagg Ranch, WY (58.9 mi)
Madison River, Ennis, MT (69.5 mi)
Madison River, Norris, MT (71.8 mi)
Snake River, Moran, WY (74.5 mi)
Buffalo Fork River, Moran, WY (75.4 mi)

Weather for Yellowstone National Park, Wyoming

Current Weather

35.6°F
Overcast
Conditions: Overcast
Humidity: 78%
Feels Like: 30°F
Wind: W 3.2 mph
Wind Gusts: 5.6 mph
Pressure: 30.05 in
Precipitation: 0 in
Cloud Cover: 91%
Visibility: 11.7 mi
UV Index: 0

Five-Day Weather Forecast

Overcast
Sat
H: 52°F
L: 33°F
Overcast
Sun
H: 48°F
L: 26°F
Overcast
Mon
H: 52°F
L: 34°F
Heavy Snow
Tue
H: 53°F
L: 31°F
Moderate Snow
Wed
H: 32°F
L: 15°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

Ozone (O3)
65 μg/m³
Photochemical
NO2
0.9 μg/m³
Nitrogen Dioxide
SO2
0 μg/m³
Sulfur Dioxide
CO
116 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 36m daylight
Sunrise 7:18 AM
Solar Noon 12:06 PM
Sunset 4:54 PM
Moon
Waxing Crescent • 21%
Moonrise 12:15 PM
Transit 4:35 PM
Moonset 9:03 PM

Best Times for Fishing or Hunting

Major Periods

3:41 AM - 6:11 AM
4:05 PM - 6:35 PM

Minor Periods

11:45 AM - 1:15 PM
8:33 PM - 10:03 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 39.7°F
Average Humidity: 56%
Chance of Rain: 1%
Wind: 11.4 mph
UV Index: 3

Air Quality

EPA Index 1 • Good
PM2.5
5.4 μg/m³
Good
PM10
6 μg/m³
Good
Ozone (O3)
89.1 μg/m³
Photochemical
NO2
0.5 μg/m³
Nitrogen Dioxide
SO2
0.2 μg/m³
Sulfur Dioxide
CO
118.4 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 36m daylight
Sunrise 7:18 AM
Solar Noon 12:06 PM
Sunset 4:54 PM
Moon
Waxing Crescent • 21%
Moonrise 12:15 PM
Transit 4:35 PM
Moonset 9:03 PM

Best Times for Fishing or Hunting

Major Periods

3:41 AM - 6:11 AM
4:05 PM - 6:35 PM

Minor Periods

11:45 AM - 1:15 PM
8:33 PM - 10:03 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 35.6°F
Average Humidity: 51%
Chance of Rain: 0%
Wind: 8.9 mph
UV Index: 3

Air Quality

EPA Index 1 • Good
PM2.5
1.1 μg/m³
Good
PM10
2 μg/m³
Good
Ozone (O3)
75.5 μg/m³
Photochemical
NO2
0.4 μg/m³
Nitrogen Dioxide
SO2
0.1 μg/m³
Sulfur Dioxide
CO
111.2 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 34m daylight
Sunrise 7:19 AM
Solar Noon 12:06 PM
Sunset 4:53 PM
Moon
Waxing Crescent • 31%
Moonrise 12:43 PM
Transit 5:22 PM
Moonset 10:09 PM

Best Times for Fishing or Hunting

Major Periods

4:30 AM - 7:00 AM
4:52 PM - 7:22 PM

Minor Periods

12:13 PM - 1:43 PM
9:39 PM - 11:09 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 40.1°F
Average Humidity: 45%
Chance of Rain: 1%
Wind: 8.5 mph
UV Index: 2.7

Air Quality

EPA Index 1 • Good
PM2.5
2.7 μg/m³
Good
PM10
3.7 μg/m³
Good
Ozone (O3)
88.3 μg/m³
Photochemical
NO2
0.6 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
109.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 31m daylight
Sunrise 7:20 AM
Solar Noon 12:06 PM
Sunset 4:52 PM
Moon
First Quarter • 42%
Moonrise 1:06 PM
Transit 6:06 PM
Moonset 11:15 PM

Best Times for Fishing or Hunting

Major Periods

5:14 AM - 7:44 AM
5:36 PM - 8:06 PM

Minor Periods

12:36 PM - 2:06 PM
10:45 PM - 12:15 AM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Heavy Snow
Average Temperature: 40.5°F
Average Humidity: 63%
Chance of Rain: 78%
Wind: 8.2 mph
UV Index: 2.4

Air Quality

EPA Index 1 • Good
PM2.5
3.6 μg/m³
Good
PM10
6.7 μg/m³
Good
Ozone (O3)
89.3 μg/m³
Photochemical
NO2
0.8 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
112.3 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 29m daylight
Sunrise 7:22 AM
Solar Noon 12:06 PM
Sunset 4:51 PM
Moon
First Quarter • 54%
Moonrise 1:26 PM
Transit 6:49 PM
Moonset 1:52 AM

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
6:19 PM - 8:49 PM

Minor Periods

1:22 AM - 2:52 AM
12:56 PM - 2:26 PM
Action Rating:
Fair Action 2/5
Wednesday, November 18, 2026

Weather Forecast

Conditions: Moderate Snow
Average Temperature: 25.3°F
Average Humidity: 88%
Chance of Rain: 59%
Wind: 11.6 mph
UV Index: 2.3

Air Quality

EPA Index 1 • Good
PM2.5
1.3 μg/m³
Good
PM10
1.9 μg/m³
Good
Ozone (O3)
83.4 μg/m³
Photochemical
NO2
0.9 μg/m³
Nitrogen Dioxide
SO2
0.2 μg/m³
Sulfur Dioxide
CO
123.7 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 27m daylight
Sunrise 7:23 AM
Solar Noon 12:06 PM
Sunset 4:50 PM
Moon
First Quarter • 65%
Moonrise 1:45 PM
Transit 7:31 PM
Moonset 12:23 AM

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
7:01 PM - 9:31 PM

Minor Periods

1:15 PM - 2:45 PM
11:53 PM - 1:23 AM
Action Rating:
Fair Action 2/5
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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