Water Temperature of the Madison River in Grayling, MT
Current Water Temperature
34.7°F
Measurement Time: Wednesday, December 31, 2025, 11:45 PM MST
Temperature Locations
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Local Points of Interest
Hebgen Lake; West Yellowstone, MTMadison 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
21.5°F

Partly Cloudy
13°F
21.5°F
60%
SE 2.2 mph
4.7 mph
13°F
9°F
0 in
53%
6 mi
1020 mbar
0
Five Day Weather Forecast

Thu
H: 31°F
L: 20°F

Fri
H: 32°F
L: 23°F

Sat
H: 34°F
L: 19°F

Sun
H: 35°F
L: 17°F

Mon
H: 33°F
L: 26°F
Air Quality
AQI:
1 - Good
PM2.5:
5.05 μg/m3
PM10:
5.85 μg/m3
Carbon Monoxide: 155.85 μg/m3
Nitrogen Dioxide: 4.55 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 85 μg/m3
Nitrogen Dioxide: 4.55 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 85 μg/m3
Astronomical
Sunrise: 8:03 AM
Sun Transit: 12:29 AM
Sunset: 4:55 PM
Daylight: 8 hrs 52 mins
Sun Transit: 12:29 AM
Sunset: 4:55 PM
Daylight: 8 hrs 52 mins
Moonrise: 2:49 PM
Moon Transit: 11:18 PM
Moonset: 6:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%
Moon Transit: 11:18 PM
Moonset: 6:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%
Best Times for Fishing or Hunting
Major Periods
7:16 AM - 9:46 AM12:00 AM - 12:00 AM
Minor Periods
2:19 PM - 3:49 PM6:09 AM - 7:39 AM
Action Rating: 3 out of 5
Thursday, January 1, 2026
Weather Forecast
Moderate or heavy snow showers
30.9°F
20.3°F
25.2°F
77%
0.2 in
72%
14%
5.1 mph
0.2
Air Quality
AQI:
1 - Good
PM2.5:
4.8 μg/m3
PM10:
5.28 μg/m3
Carbon Monoxide: 148.01 μg/m3
Nitrogen Dioxide: 4.37 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 85.4 μg/m3
Nitrogen Dioxide: 4.37 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 85.4 μg/m3
Astronomical
Sunrise: 8:03 AM
Sun Transit: 12:29 AM
Sunset: 4:55 PM
Daylight: 8 hrs 52 mins
Sun Transit: 12:29 AM
Sunset: 4:55 PM
Daylight: 8 hrs 52 mins
Moonrise: 2:49 PM
Moon Transit: 11:18 PM
Moonset: 6:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%
Moon Transit: 11:18 PM
Moonset: 6:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%
Best Times for Fishing or Hunting
Major Periods
7:16 AM - 9:46 AM12:00 AM - 12:00 AM
Minor Periods
2:19 PM - 3:49 PM6:09 AM - 7:39 AM
Action Rating: 3 out of 5
Friday, January 2, 2026
Weather Forecast
Moderate or heavy snow showers
32°F
22.5°F
25.8°F
95%
0.26 in
68%
20%
7.6 mph
0.2
Air Quality
AQI:
1 - Good
PM2.5:
4.21 μg/m3
PM10:
4.43 μg/m3
Carbon Monoxide: 168.33 μg/m3
Nitrogen Dioxide: 5.5 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 70.36 μg/m3
Nitrogen Dioxide: 5.5 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 70.36 μg/m3
Astronomical
Sunrise: 8:03 AM
Sun Transit: 12:29 AM
Sunset: 4:56 PM
Daylight: 8 hrs 53 mins
Sun Transit: 12:29 AM
Sunset: 4:56 PM
Daylight: 8 hrs 53 mins
Moonrise: 3:56 PM
Moon Transit: 12:00 AM
Moonset: 7:49 AM
Moon Phase: Full
Moon Illumination: 99.2%
Moon Transit: 12:00 AM
Moonset: 7:49 AM
Moon Phase: Full
Moon Illumination: 99.2%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM8:23 AM - 10:53 AM
Minor Periods
3:26 PM - 4:56 PM7:19 AM - 8:49 AM
Action Rating: 5 out of 5
Saturday, January 3, 2026
Weather Forecast
Overcast
33.6°F
19.2°F
25.7°F
95%
0 in
0%
0%
7.6 mph
0.2
Air Quality
AQI:
1 - Good
PM2.5:
1.28 μg/m3
PM10:
1.31 μg/m3
Carbon Monoxide: 144.21 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 68.4 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 68.4 μg/m3
Astronomical
Sunrise: 8:03 AM
Sun Transit: 12:30 AM
Sunset: 4:57 PM
Daylight: 8 hrs 54 mins
Sun Transit: 12:30 AM
Sunset: 4:57 PM
Daylight: 8 hrs 54 mins
Moonrise: 5:15 PM
Moon Transit: 12:24 AM
Moonset: 8:44 AM
Moon Phase: Full
Moon Illumination: 99.9%
Moon Transit: 12:24 AM
Moonset: 8:44 AM
Moon Phase: Full
Moon Illumination: 99.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:28 AM - 11:58 AM
Minor Periods
4:45 PM - 6:15 PM8:14 AM - 9:44 AM
Action Rating: 5 out of 5
Sunday, January 4, 2026
Weather Forecast
Mist
35.1°F
17.2°F
25.1°F
95%
0.04 in
86%
16%
6.7 mph
0.2
Air Quality
AQI:
1 - Good
PM2.5:
1.97 μg/m3
PM10:
2.06 μg/m3
Carbon Monoxide: 131.36 μg/m3
Nitrogen Dioxide: 2.39 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 83.24 μg/m3
Nitrogen Dioxide: 2.39 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 83.24 μg/m3
Astronomical
Sunrise: 8:03 AM
Sun Transit: 12:30 AM
Sunset: 4:58 PM
Daylight: 8 hrs 55 mins
Sun Transit: 12:30 AM
Sunset: 4:58 PM
Daylight: 8 hrs 55 mins
Moonrise: 6:38 PM
Moon Transit: 1:27 AM
Moonset: 9:25 AM
Moon Phase: Full
Moon Illumination: 98.1%
Moon Transit: 1:27 AM
Moonset: 9:25 AM
Moon Phase: Full
Moon Illumination: 98.1%
Best Times for Fishing or Hunting
Major Periods
12:57 AM - 3:27 AM10:30 AM - 1:00 PM
Minor Periods
6:08 PM - 7:38 PM8:55 AM - 10:25 AM
Action Rating: 3 out of 5
Monday, January 5, 2026
Weather Forecast
Heavy snow
33.1°F
25.6°F
27.9°F
97%
0.22 in
69%
62%
9.2 mph
0
Air Quality
AQI:
1 - Good
PM2.5:
1.45 μg/m3
PM10:
1.49 μg/m3
Carbon Monoxide: 137.43 μg/m3
Nitrogen Dioxide: 2.82 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 78.38 μg/m3
Nitrogen Dioxide: 2.82 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 78.38 μg/m3
Astronomical
Sunrise: 8:03 AM
Sun Transit: 12:30 AM
Sunset: 4:59 PM
Daylight: 8 hrs 56 mins
Sun Transit: 12:30 AM
Sunset: 4:59 PM
Daylight: 8 hrs 56 mins
Moonrise: 7:58 PM
Moon Transit: 2:25 AM
Moonset: 9:56 AM
Moon Phase: Full
Moon Illumination: 93.7%
Moon Transit: 2:25 AM
Moonset: 9:56 AM
Moon Phase: Full
Moon Illumination: 93.7%
Best Times for Fishing or Hunting
Major Periods
1:55 AM - 4:25 AM11:24 AM - 1:54 PM
Minor Periods
7:28 PM - 8:58 PM9:26 AM - 10:56 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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