Water Temperature of the Madison River in Grayling, MT

Current Water Temperature

56.3°F

Measurement Time: Friday, June 26, 2026, 1:45 PM MDT

Temperature Locations

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Local Points of Interest

Hebgen Lake; West Yellowstone, MT

Madison River

Station Name: Madison River bl Hebgen Lake nr Grayling MT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 6,503 feet

Nearest Address:
8998 Hebgen Lake Rd
Grayling, MT 59758
Gallatin County

GPS Coordinates: 44.86639167, -111.3387806

Nearby Water Temperatures

Madison River, Cameron, MT (12 mi)
Madison River, West Yellowstone, MT (19.6 mi)
Gibbon River, Yellowstone National Park, WY (28.1 mi)
Firehole River, Yellowstone National Park, WY (28.9 mi)
Yellowstone River, Corwin Springs, MT (31.6 mi)
Tantalus Creek, Yellowstone National Park, WY (32 mi)
Madison River, Ennis, MT (32.4 mi)
Boiling River Hot Springs, Yellowstone National Park, WY (32.8 mi)
Firehole River, Yellowstone National Park, WY (37.9 mi)
Madison River, Norris, MT (45.4 mi)
Lamar River, Yellowstone National Park, WY (46.4 mi)
Snake River, Flagg Ranch, WY (62.5 mi)
Ruby River, Twin Bridges, MT (65.5 mi)
Jefferson River, Twin Bridges, MT (70.6 mi)
Big Hole River, Glen, MT (71.3 mi)

Weather for Grayling, Montana

Current Weather

66.4°F
Partly cloudy
Partly cloudy
66.4°F
54.6°F
1%
S 9.6 mph
11.1 mph
52.5°F
38.8°F
0 in
50%
9 mi
1012 mbar
0.2

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 72°F
L: 43°F
Moderate rain
Sat
H: 53°F
L: 41°F
Moderate rain
Sun
H: 47°F
L: 32°F
Moderate rain
Mon
H: 47°F
L: 32°F
Patchy rain nearby
Tue
H: 63°F
L: 28°F

Air Quality

AQI: 1 - Good
PM2.5: 5 μg/m3
PM10: 15.5 μg/m3
Carbon Monoxide: 99 μg/m3
Nitrogen Dioxide: 0.4 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 104 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:28 PM
Sunset: 9:16 PM
Daylight: 15 hrs 35 mins
Moonrise: 7:00 PM
Moon Transit: 11:13 PM
Moonset: 2:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%

Best Times for Fishing or Hunting

Major Periods

7:22 AM - 9:52 AM
12:00 AM - 12:00 AM

Minor Periods

6:30 PM - 8:00 PM
2:17 AM - 3:47 AM

Action Rating: 2 out of 5

Winter Weather Advisory issued June 25 at 11:54PM MDT until June 29 at 12:00PM MDT by NWS Great Falls MT

Effective: Thu June 25, 2026, 11:54 PM
Expires: Fri June 26, 2026, 3:00 PM

* WHAT...Periods of wet snow expected. Total snow accumulations up to 4 inches above 6500 feet. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains, Northwest Beaverhead County, and Ruby Mountains and Southern Beaverhead Mountains. * WHEN...From midnight Saturday Night to noon MDT Monday. Snow levels will be lowest during the overnight and early morning hours. * IMPACTS...Plan on cold and wet backcountry conditions with a heightened hypothermia risk for those not properly dressed. Wet snow may down trees and block access to forest roadways. * ADDITIONAL DETAILS...Campers should be aware that it only takes a few inches of snow to damage tents and other recreational items.

Monitor the latest forecasts for updates on this situation. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.


Winter Weather Advisory issued June 26 at 12:29PM MDT until June 29 at 12:00PM MDT by NWS Great Falls MT

Effective: Fri June 26, 2026, 12:29 PM
Expires: Sat June 27, 2026, 6:00 AM

* WHAT...Periods of wet snow expected. Total snow accumulations up to 4 inches above 6500 feet, with localized amounts in excess of 8 inches near highest peaks. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains, Northwest Beaverhead County, and Ruby Mountains and Southern Beaverhead Mountains. * WHEN...From 6 PM Saturday to noon MDT Monday. * IMPACTS...Plan on cold and wet backcountry conditions with a heightened hypothermia risk for those not properly dressed. Wet snow may down trees and block access to forest roadways. * ADDITIONAL DETAILS...Campers should be aware that it only takes a few inches of snow to damage tents and other recreational items.

Monitor the latest forecasts for updates on this situation. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.
Friday, June 26, 2026

Weather Forecast

Patchy rain nearby
72.1°F
42.5°F
55.7°F
60%
0.01 in
17%
0%
17.9 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 6.12 μg/m3
PM10: 11.25 μg/m3
Carbon Monoxide: 111.92 μg/m3
Nitrogen Dioxide: 3.38 μg/m3
Sulphur Dioxide: 0.24 μg/m3
Ozone: 87.63 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:28 PM
Sunset: 9:16 PM
Daylight: 15 hrs 35 mins
Moonrise: 7:00 PM
Moon Transit: 11:13 PM
Moonset: 2:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%

Best Times for Fishing or Hunting

Major Periods

7:22 AM - 9:52 AM
12:00 AM - 12:00 AM

Minor Periods

6:30 PM - 8:00 PM
2:17 AM - 3:47 AM

Action Rating: 2 out of 5

Saturday, June 27, 2026

Weather Forecast

Moderate rain
52.7°F
40.7°F
45.8°F
86%
0.54 in
86%
0%
6.9 mph
5.9


Air Quality

AQI: 1 - Good
PM2.5: 2.53 μg/m3
PM10: 6.99 μg/m3
Carbon Monoxide: 100.08 μg/m3
Nitrogen Dioxide: 1.17 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 85.29 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:28 PM
Sunset: 9:16 PM
Daylight: 15 hrs 35 mins
Moonrise: 8:01 PM
Moon Transit: 12:00 AM
Moonset: 3:21 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:11 AM - 10:41 AM

Minor Periods

7:31 PM - 9:01 PM
2:51 AM - 4:21 AM

Action Rating: 3 out of 5

Sunday, June 28, 2026

Weather Forecast

Moderate rain
47.1°F
31.7°F
39.6°F
92%
0.31 in
90%
0%
9.4 mph
2.8


Air Quality

AQI: 1 - Good
PM2.5: 1.6 μg/m3
PM10: 6.26 μg/m3
Carbon Monoxide: 95.25 μg/m3
Nitrogen Dioxide: 1.17 μg/m3
Sulphur Dioxide: 0.11 μg/m3
Ozone: 75.71 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:28 PM
Sunset: 9:15 PM
Daylight: 15 hrs 34 mins
Moonrise: 8:55 PM
Moon Transit: 12:03 AM
Moonset: 4:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:02 AM - 11:32 AM

Minor Periods

8:25 PM - 9:55 PM
3:34 AM - 5:04 AM

Action Rating: 2 out of 5

Monday, June 29, 2026

Weather Forecast

Moderate rain
46.6°F
31.6°F
38.5°F
98%
0.59 in
95%
84%
6.3 mph
5.4


Air Quality

AQI: 1 - Good
PM2.5: 2.82 μg/m3
PM10: 13.18 μg/m3
Carbon Monoxide: 92.15 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 73.63 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:28 PM
Sunset: 9:15 PM
Daylight: 15 hrs 33 mins
Moonrise: 9:40 PM
Moon Transit: 12:54 AM
Moonset: 4:56 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:24 AM - 2:54 AM
9:53 AM - 12:23 AM

Minor Periods

9:10 PM - 10:40 PM
4:26 AM - 5:56 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Patchy rain nearby
63.1°F
28.2°F
44.1°F
82%
0.19 in
76%
0%
5.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.77 μg/m3
PM10: 26.31 μg/m3
Carbon Monoxide: 99 μg/m3
Nitrogen Dioxide: 4.1 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:29 PM
Sunset: 9:15 PM
Daylight: 15 hrs 33 mins
Moonrise: 10:18 PM
Moon Transit: 1:46 AM
Moonset: 5:55 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

1:16 AM - 3:46 AM
10:44 AM - 1:14 PM

Minor Periods

9:48 PM - 11:18 PM
5:25 AM - 6:55 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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