Water Temperature of the Madison River in Grayling, MT

Current Water Temperature

58.3°F

Measurement Time: Friday, July 10, 2026, 2:45 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

66.7°F
Partly Cloudy
Partly Cloudy
66.7°F
55.8°F
1%
NNE 2.2 mph
2.3 mph
55.8°F
35.7°F
0 in
0%
9 mi
1022 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 79°F
L: 44°F
Sunny
Sat
H: 84°F
L: 46°F
Sunny
Sun
H: 91°F
L: 51°F
Sunny
Mon
H: 90°F
L: 50°F
Sunny
Tue
H: 85°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 2.9 μg/m3
PM10: 5.5 μg/m3
Carbon Monoxide: 97 μg/m3
Nitrogen Dioxide: 2.2 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 91 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:30 PM
Sunset: 9:12 PM
Daylight: 15 hrs 22 mins
Moonrise: 1:42 AM
Moon Transit: 9:39 AM
Moonset: 5:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

6:41 PM - 9:11 PM
9:09 AM - 11:39 AM

Minor Periods

5:21 PM - 6:51 PM
1:12 AM - 2:42 AM

Action Rating: 3 out of 5

Fire Weather Watch issued July 10 at 10:34AM MDT until July 12 at 9:00PM MDT by NWS Missoula MT

Effective: Fri July 10, 2026, 10:34 AM
Expires: Fri July 10, 2026, 6:45 PM

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING DUE TO WIND AND LOW RELATIVE HUMIDITY FOR DEERLODGE/WEST BEAVERHEAD AND EAST BEAVERHEAD... The National Weather Service in Missoula MT has issued a Fire Weather Watch. * AFFECTED AREA...Fire Weather Zones 110 and 111. * TIMING...From Sunday afternoon through Sunday evening. * WINDS...Southwest winds 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...Relative Humidity between 8 to 15 percent in the lower elevations of Zone 111 (East Beaverhead); 10 to 15 percent for Zone 110 (Deerlodge/West Beaverhead) * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

Please advise the appropriate officials or fire crews in the field of this Fire Weather Watch.


Special Weather Statement issued July 10 at 5:43PM MDT by NWS Great Falls MT

Effective: Fri July 10, 2026, 5:43 PM
Expires: Fri July 10, 2026, 6:30 PM

At 539 PM MDT, radar indicated thunderstorms along a line extending from 7 miles west of Lima to 8 miles north of Kilgore. Movement was northeast at 20 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Monida Pass reported a 46 mph gust at 530 pm. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Henrys Lake, Lima, Monida, Dell, Bannack Pass, Red Rock Pass, Lakeview, and Snowline.

If outdoors, consider seeking shelter inside a building. Cloud to ground lightning is occurring with these storms. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle.
Friday, July 10, 2026

Weather Forecast

Sunny
79.1°F
43.8°F
62.2°F
38%
0 in
1%
0%
13.2 mph
10.3


Air Quality

AQI: 1 - Good
PM2.5: 3.88 μg/m3
PM10: 6.93 μg/m3
Carbon Monoxide: 101.38 μg/m3
Nitrogen Dioxide: 4.01 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 92.58 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:30 PM
Sunset: 9:12 PM
Daylight: 15 hrs 22 mins
Moonrise: 1:42 AM
Moon Transit: 9:39 AM
Moonset: 5:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

6:41 PM - 9:11 PM
9:09 AM - 11:39 AM

Minor Periods

5:21 PM - 6:51 PM
1:12 AM - 2:42 AM

Action Rating: 3 out of 5

Saturday, July 11, 2026

Weather Forecast

Sunny
83.7°F
46.4°F
65.4°F
33%
0 in
1%
0%
13 mph
11


Air Quality

AQI: 1 - Good
PM2.5: 3.96 μg/m3
PM10: 9.75 μg/m3
Carbon Monoxide: 95.38 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 0.27 μg/m3
Ozone: 91.75 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:30 PM
Sunset: 9:11 PM
Daylight: 15 hrs 21 mins
Moonrise: 2:24 AM
Moon Transit: 10:42 AM
Moonset: 7:09 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

7:46 PM - 10:16 PM
10:12 AM - 12:42 AM

Minor Periods

6:39 PM - 8:09 PM
1:54 AM - 3:24 AM

Action Rating: 2 out of 5

Sunday, July 12, 2026

Weather Forecast

Sunny
91.2°F
50.6°F
69.9°F
24%
0 in
1%
0%
15.9 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 3.87 μg/m3
PM10: 11.31 μg/m3
Carbon Monoxide: 92.29 μg/m3
Nitrogen Dioxide: 3.25 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 85.63 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:31 PM
Sunset: 9:11 PM
Daylight: 15 hrs 20 mins
Moonrise: 3:19 AM
Moon Transit: 11:48 AM
Moonset: 8:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

8:53 PM - 11:23 PM
11:18 AM - 1:48 PM

Minor Periods

7:47 PM - 9:17 PM
2:49 AM - 4:19 AM

Action Rating: 4 out of 5

Monday, July 13, 2026

Weather Forecast

Sunny
90.1°F
50.2°F
70.5°F
33%
0 in
1%
0%
6.5 mph
11.1


Air Quality

AQI: 1 - Good
PM2.5: 4.49 μg/m3
PM10: 7.3 μg/m3
Carbon Monoxide: 96.88 μg/m3
Nitrogen Dioxide: 3.04 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 84.5 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:31 PM
Sunset: 9:10 PM
Daylight: 15 hrs 18 mins
Moonrise: 4:30 AM
Moon Transit: 12:55 AM
Moonset: 9:10 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:25 AM - 2:55 PM

Minor Periods

8:40 PM - 10:10 PM
4:00 AM - 5:30 AM

Action Rating: 5 out of 5

Tuesday, July 14, 2026

Weather Forecast

Sunny
85.4°F
51.3°F
67.9°F
45%
0.01 in
17%
0%
9.2 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 5.45 μg/m3
PM10: 8.65 μg/m3
Carbon Monoxide: 98.99 μg/m3
Nitrogen Dioxide: 4.58 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 81.58 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:31 PM
Sunset: 9:09 PM
Daylight: 15 hrs 17 mins
Moonrise: 5:52 AM
Moon Transit: 1:58 PM
Moonset: 9:50 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:28 PM - 3:58 PM

Minor Periods

9:20 PM - 10:50 PM
5:22 AM - 6:52 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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