Water Temperature of the Madison River in Grayling, MT
Current Water Temperature
Measurement Time: Wednesday, May 21, 2025, 1:45 AM MDT
Temperature Locations
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Local Points of Interest
Hebgen Lake; West Yellowstone, MTSponsored Content
Station Name: Madison River bl Hebgen Lake nr Grayling MT
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 6,503 feet / 1,982 meters
Nearest Address:
8998 Hebgen Lake Rd
Grayling, MT 59758
Gallatin County
GPS Coordinates: 44.86639167, -111.3387806
Nearby Water Temperatures
Madison River, Cameron, MT (12.0 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 (32.0 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

Humidity: 87%
Feels Like: 36.9°F
Wind: SW 2.2 mph
Wind Gusts: 2.6 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0.8
Five Day Weather Forecast

Wed
H: 52°F
L: 22°F

Thu
H: 57°F
L: 29°F

Fri
H: 61°F
L: 31°F

Sat
H: 65°F
L: 41°F

Sun
H: 71°F
L: 41°F
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:22 PM
Sunset: 8:55 PM
Daylight: 15 hrs 5 mins
Moon Transit: 8:32 AM
Moonset: 2:22 PM
Moon Phase: Last Quarter
Moon Illumination: 22.6%
Best Times for Fishing or Hunting
Major Periods
8:02 AM - 10:32 AM12:00 AM - 12:00 AM
Minor Periods
1:52 PM - 3:22 PM2:26 AM - 3:56 AM
Action Rating: 2 out of 5
Frost Advisory issued May 21 at 1:12AM MDT until May 21 at 10:00AM MDT by NWS Pocatello ID
Effective: Wed May 21, 2025, 1:12 AM
Expires: Wed May 21, 2025, 10:00 AM
* WHAT...Temperatures below 37 could harm sensitive outdoor vegetation. * WHERE...Eastern Magic Valley, Shoshone/Lava Beds, Arco/Mud Lake Desert, Lower Snake River Plain, and Upper Snake River Plain. * WHEN...Until 10 AM MDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Take steps now to protect tender plants from the cold.
Weather Forecast
Average Temperature: 38.8°F
Average Humidity: 70%
Wind: 11.2 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 4.31 μg/m3
Sulphur Dioxide: 0.19 μg/m3
Ozone: 94.38 μg/m3
Astronomical
Sun Transit: 1:22 PM
Sunset: 8:55 PM
Daylight: 15 hrs 5 mins
Moon Transit: 8:32 AM
Moonset: 2:22 PM
Moon Phase: Last Quarter
Moon Illumination: 22.6%
Best Times for Fishing or Hunting
Major Periods
8:02 AM - 10:32 AM12:00 AM - 12:00 AM
Minor Periods
1:52 PM - 3:22 PM2:26 AM - 3:56 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 40.6°F
Average Humidity: 68%
Wind: 15.9 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:22 PM
Sunset: 8:56 PM
Daylight: 15 hrs 6 mins
Moon Transit: 10:46 AM
Moonset: 3:39 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.9%
Best Times for Fishing or Hunting
Major Periods
10:16 AM - 12:46 AM10:16 AM - 12:46 AM
Minor Periods
3:09 PM - 4:39 PM2:46 AM - 4:16 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 47.2°F
Average Humidity: 61%
Wind: 11.2 mph
UV Index: 3
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:22 PM
Sunset: 8:57 PM
Daylight: 15 hrs 8 mins
Moon Transit: 10:09 AM
Moonset: 4:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.0%
Best Times for Fishing or Hunting
Major Periods
7:08 PM - 9:38 PM9:39 AM - 12:09 AM
Minor Periods
4:29 PM - 5:59 PM3:05 AM - 4:35 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 52.8°F
Average Humidity: 54%
Wind: 13.6 mph
UV Index: 4
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:22 PM
Sunset: 8:58 PM
Daylight: 15 hrs 10 mins
Moon Transit: 11:01 AM
Moonset: 6:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.4%
Best Times for Fishing or Hunting
Major Periods
8:01 PM - 10:31 PM10:31 AM - 1:01 PM
Minor Periods
5:53 PM - 7:23 PM3:27 AM - 4:57 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 55.8°F
Average Humidity: 51%
Wind: 4.9 mph
UV Index: 4
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:22 PM
Sunset: 8:59 PM
Daylight: 15 hrs 12 mins
Moon Transit: 11:57 AM
Moonset: 7:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%
Best Times for Fishing or Hunting
Major Periods
8:59 PM - 11:29 PM11:27 AM - 1:57 PM
Minor Periods
7:19 PM - 8:49 PM3:54 AM - 5:24 AM
Action Rating: 5 out of 5