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

Current Water Temperature

41.5°F

Measurement Time: Tuesday, March 24, 2026, 5:15 PM MDT

Temperature Locations

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Local Points of Interest

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

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

35.2°F
Overcast
Overcast
24.6°F
35.2°F
99%
SSW 8.7 mph
16.5 mph
24.6°F
35.1°F
0 in
92%
6 mi
1015 mbar
0

Five Day Weather Forecast

Overcast
Wed
H: 43°F
L: 32°F
Overcast
Thu
H: 31°F
L: 20°F
Partly Cloudy
Fri
H: 37°F
L: 16°F
Partly Cloudy
Sat
H: 48°F
L: 29°F
Sunny
Sun
H: 50°F
L: 31°F

Air Quality

PM2.5: 4.05 μg/m3
PM10: 6.25 μg/m3
Carbon Monoxide: 114.85 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 81 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:00 AM
Sunset: 7:41 PM
Daylight: 12 hrs 26 mins
Moonrise: 11:19 AM
Moon Transit: 7:47 PM
Moonset: 3:16 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
7:17 PM - 9:47 PM

Minor Periods

10:49 AM - 12:19 AM
2:46 AM - 4:16 AM

Action Rating: 3 out of 5

Red Flag Warning issued March 24 at 12:10PM MDT until March 25 at 9:00PM MDT by NWS Billings MT

Effective: Tue March 24, 2026, 12:10 PM
Expires: Wed March 25, 2026, 12:15 PM

The National Weather Service in Billings has issued a Red Flag Warning...which is in effect from noon to 9 PM MDT Wednesday. The Fire Weather Watch is no longer in effect. * IMPACTS: Low humidities, unseasonably warm temperatures, strong gusty winds, and wind shift with a cold front will create erratic fire behavior and the potential for new fire starts. * AFFECTED AREA: In North Central WY Fire Zone...274. In South Central MT Fire Zones...126...127...128...129. For Zones 126, 127, and 129, the worst conditions will impact the lower elevations where grasses remain dead or dry. * COUNTIES AFFECTED: In Central MT...Golden Valley...Musselshell. In North Central WY...Sheridan. In South Central MT...Big Horn...Carbon...Park...Stillwater Sweet Grass...Yellowstone. * COLD FRONT: The front will move in from the north, with passage timing forecast between 3 PM and 9 PM MDT Wednesday. Expect the the southern districts to see frontal arrival latest. This will bring an end to the gusty conditions and shift winds from the west to the north-northeast. Light showers are possible behind the front, although the chance of a wetting rain is low. * WIND: West 15 to 25 mph with gusts up to 45 mph. * HUMIDITY: As low as 15 percent. In Sheridan County, as low as 8 percent. * TEMPERATURES: Up to 82 degrees.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.


Red Flag Warning issued March 24 at 12:10PM MDT until March 25 at 9:00PM MDT by NWS Billings MT

Effective: Tue March 24, 2026, 12:10 PM
Expires: Wed March 25, 2026, 12:15 PM

The National Weather Service in Billings has issued a Red Flag Warning...which is in effect from noon to 9 PM MDT Wednesday. The Fire Weather Watch is no longer in effect. * IMPACTS: Low humidities, unseasonably warm temperatures, strong gusty winds, and wind shift with a cold front will create erratic fire behavior and the potential for new fire starts. * AFFECTED AREA: In South Central MT Fire Zones...123...124...125. For Zone 123, the worst conditions will impact the lower elevations where grasses remain dead or dry. * COUNTIES AFFECTED: In Central MT...Wheatland. In South Central MT...Park...Stillwater...Sweet Grass. In Southwest MT...Gallatin. * COLD FRONT: The front will move in from the north, with passage timing forecast between 3 PM and 9 PM MDT Wednesday. Expect the districts along the Beartooth Foothills to see frontal arrival the latest. This will bring an end to the gusty conditions and shift winds from the west to the north-northeast. Light showers are possible behind the front, although the chance of a wetting rain is low. * WIND: West 25 to 35 mph with gusts up to 60 mph. Strongest from Livingston to Big Timber and north through Harlowton. * HUMIDITY: As low as 15 percent. * TEMPERATURES: Up to 75 degrees.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.


Wednesday, March 25, 2026

Weather Forecast

Overcast
43.2°F
31.5°F
36.4°F
89%
0 in
0%
0%
21.5 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 4.16 μg/m3
PM10: 6.29 μg/m3
Carbon Monoxide: 113.77 μg/m3
Nitrogen Dioxide: 1.43 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 90.96 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:00 AM
Sunset: 7:41 PM
Daylight: 12 hrs 26 mins
Moonrise: 11:19 AM
Moon Transit: 7:47 PM
Moonset: 3:16 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
7:17 PM - 9:47 PM

Minor Periods

10:49 AM - 12:19 AM
2:46 AM - 4:16 AM

Action Rating: 3 out of 5

Thursday, March 26, 2026

Weather Forecast

Overcast
30.7°F
19.8°F
26.6°F
69%
0 in
0%
0%
20.6 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 3.09 μg/m3
PM10: 6.42 μg/m3
Carbon Monoxide: 120.17 μg/m3
Nitrogen Dioxide: 1.53 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 99.16 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 12:00 AM
Sunset: 7:42 PM
Daylight: 12 hrs 29 mins
Moonrise: 12:32 AM
Moon Transit: 8:47 PM
Moonset: 4:09 AM
Moon Phase: First Quarter
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
8:17 PM - 10:47 PM

Minor Periods

12:02 AM - 1:32 PM
3:39 AM - 5:09 AM

Action Rating: 3 out of 5

Friday, March 27, 2026

Weather Forecast

Partly Cloudy
36.7°F
16°F
26.3°F
52%
0 in
0%
0%
12.3 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 2.13 μg/m3
PM10: 3.5 μg/m3
Carbon Monoxide: 136.07 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 121.68 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 12:00 AM
Sunset: 7:43 PM
Daylight: 12 hrs 32 mins
Moonrise: 1:49 PM
Moon Transit: 9:42 PM
Moonset: 4:50 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

5:55 AM - 8:25 AM
9:12 PM - 11:42 PM

Minor Periods

1:19 PM - 2:49 PM
4:20 AM - 5:50 AM

Action Rating: 2 out of 5

Saturday, March 28, 2026

Weather Forecast

Partly Cloudy
47.7°F
28.6°F
37.2°F
40%
0 in
0%
0%
12.1 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 1.62 μg/m3
PM10: 2.54 μg/m3
Carbon Monoxide: 147.62 μg/m3
Nitrogen Dioxide: 2.02 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 110.92 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 1:26 PM
Sunset: 7:44 PM
Daylight: 12 hrs 35 mins
Moonrise: 3:06 PM
Moon Transit: 10:33 PM
Moonset: 5:20 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

6:49 AM - 9:19 AM
12:00 AM - 12:00 AM

Minor Periods

2:36 PM - 4:06 PM
4:50 AM - 6:20 AM

Action Rating: 3 out of 5

Sunday, March 29, 2026

Weather Forecast

Sunny
49.7°F
31.3°F
37.7°F
47%
0 in
0%
0%
20.1 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 1:26 PM
Sunset: 7:46 PM
Daylight: 12 hrs 38 mins
Moonrise: 4:21 PM
Moon Transit: 11:20 PM
Moonset: 5:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%

Best Times for Fishing or Hunting

Major Periods

7:38 AM - 10:08 AM
12:00 AM - 12:00 AM

Minor Periods

3:51 PM - 5:21 PM
5:14 AM - 6:44 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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