Water Temperature of the Madison River in Grayling, MT

Current Water Temperature

35.2°F

Measurement Time: Saturday, January 24, 2026, 5:45 PM MST

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

10.8°F
Overcast
Overcast
-0.5°F
10.8°F
84%
SW 3.1 mph
6.6 mph
-0.5°F
5.3°F
0 in
100%
1 mi
1022 mbar
0

Five Day Weather Forecast

Partly Cloudy
Sun
H: 18°F
L: 1°F
Cloudy
Mon
H: 21°F
L: -1°F
Partly Cloudy
Tue
H: 31°F
L: 3°F
Partly Cloudy
Wed
H: 30°F
L: -1°F
Partly Cloudy
Thu
H: 30°F
L: 1°F

Air Quality

AQI: 1 - Good
PM2.5: 6.45 μg/m3
PM10: 6.95 μg/m3
Carbon Monoxide: 174.85 μg/m3
Nitrogen Dioxide: 4.85 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:37 AM
Sunset: 5:24 PM
Daylight: 9 hrs 32 mins
Moonrise: 10:49 AM
Moon Transit: 6:05 PM
Moonset: 12:20 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
5:35 PM - 8:05 PM

Minor Periods

10:19 AM - 11:49 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, January 25, 2026

Weather Forecast

Partly Cloudy
18.3°F
1.4°F
9.5°F
69%
0 in
0%
0%
7.2 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 4.49 μg/m3
PM10: 4.91 μg/m3
Carbon Monoxide: 158.65 μg/m3
Nitrogen Dioxide: 4.15 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 86.4 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:37 AM
Sunset: 5:24 PM
Daylight: 9 hrs 32 mins
Moonrise: 10:49 AM
Moon Transit: 6:05 PM
Moonset: 12:20 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
5:35 PM - 8:05 PM

Minor Periods

10:19 AM - 11:49 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, January 26, 2026

Weather Forecast

Cloudy
21.2°F
-0.6°F
8.7°F
81%
0 in
0%
0%
7.2 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.88 μg/m3
PM10: 4.13 μg/m3
Carbon Monoxide: 161.25 μg/m3
Nitrogen Dioxide: 3.37 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 94.56 μg/m3

Astronomical

Sunrise: 7:51 AM
Sun Transit: 12:37 AM
Sunset: 5:25 PM
Daylight: 9 hrs 34 mins
Moonrise: 11:15 AM
Moon Transit: 7:00 PM
Moonset: 1:38 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

3:04 AM - 5:34 AM
6:30 PM - 9:00 PM

Minor Periods

10:45 AM - 12:15 AM
1:08 AM - 2:38 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Partly Cloudy
31.3°F
2.7°F
14.6°F
86%
0 in
0%
0%
4.3 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 4.94 μg/m3
PM10: 5.95 μg/m3
Carbon Monoxide: 155.61 μg/m3
Nitrogen Dioxide: 3.09 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 89.52 μg/m3

Astronomical

Sunrise: 7:50 AM
Sun Transit: 12:38 AM
Sunset: 5:27 PM
Daylight: 9 hrs 37 mins
Moonrise: 11:49 AM
Moon Transit: 7:57 PM
Moonset: 2:59 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

4:00 AM - 6:30 AM
7:27 PM - 9:57 PM

Minor Periods

11:19 AM - 12:49 AM
2:29 AM - 3:59 AM

Action Rating: 2 out of 5

Wednesday, January 28, 2026

Weather Forecast

Partly Cloudy
30.2°F
-1°F
10.4°F
86%
0 in
0%
0%
5.1 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 5.53 μg/m3
PM10: 6.17 μg/m3
Carbon Monoxide: 140.92 μg/m3
Nitrogen Dioxide: 3.89 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 88.68 μg/m3

Astronomical

Sunrise: 7:49 AM
Sun Transit: 12:38 AM
Sunset: 5:28 PM
Daylight: 9 hrs 39 mins
Moonrise: 12:35 AM
Moon Transit: 9:00 PM
Moonset: 4:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

5:00 AM - 7:30 AM
8:30 PM - 11:00 PM

Minor Periods

12:05 AM - 1:35 PM
3:49 AM - 5:19 AM

Action Rating: 3 out of 5

Thursday, January 29, 2026

Weather Forecast

Partly Cloudy
29.9°F
1.4°F
10.1°F
90%
0 in
0%
5%
3.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.24 μg/m3
PM10: 4.57 μg/m3
Carbon Monoxide: 158.45 μg/m3
Nitrogen Dioxide: 4.67 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 91.38 μg/m3

Astronomical

Sunrise: 7:48 AM
Sun Transit: 12:38 AM
Sunset: 5:29 PM
Daylight: 9 hrs 42 mins
Moonrise: 1:34 PM
Moon Transit: 10:05 PM
Moonset: 5:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

6:04 AM - 8:34 AM
12:00 AM - 12:00 AM

Minor Periods

1:04 PM - 2:34 PM
5:01 AM - 6:31 AM

Action Rating: 2 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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