Water Temperature of the Madison River in Grayling, MT

Current Water Temperature

38.3°F

Measurement Time: Tuesday, April 7, 2026, 8:45 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

27.4°F
Clear
Clear
19°F
27.4°F
71%
WNW 4.5 mph
9.4 mph
19°F
18.9°F
0 in
0%
6 mi
1013 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 50°F
L: 21°F
Sunny
Thu
H: 53°F
L: 28°F
Cloudy
Fri
H: 56°F
L: 30°F
Patchy rain nearby
Sat
H: 58°F
L: 32°F
Patchy rain nearby
Sun
H: 51°F
L: 31°F

Air Quality

AQI: 1 - Good
PM2.5: 4.25 μg/m3
PM10: 5.25 μg/m3
Carbon Monoxide: 116.85 μg/m3
Nitrogen Dioxide: 1.35 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 129 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:27 PM
Sunset: 8:02 PM
Daylight: 13 hrs 9 mins
Moonrise: 2:21 AM
Moon Transit: 6:18 AM
Moonset: 10:18 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:48 AM - 8:18 AM
3:17 PM - 5:47 PM

Minor Periods

9:48 AM - 11:18 AM
1:51 AM - 3:21 AM

Action Rating: 2 out of 5

High Wind Warning issued April 7 at 1:00PM MDT until April 7 at 9:00PM MDT by NWS Great Falls MT

Effective: Tue April 7, 2026, 1:00 PM
Expires: Tue April 7, 2026, 9:00 PM

* WHAT...Southwest to west winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Beaverhead and Western Madison below 6000ft and Northwest Beaverhead County. * WHEN...Until 9 PM MDT this evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.

People are urged to secure loose objects that could be blown around or damaged by the wind.


High Wind Warning issued April 7 at 1:00PM MDT until April 7 at 9:00PM MDT by NWS Great Falls MT

Effective: Tue April 7, 2026, 1:00 PM
Expires: Tue April 7, 2026, 9:00 PM

* WHAT...Southwest to west winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Madison River Valley. * WHEN...Until 9 PM MDT this evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.

People are urged to secure loose objects that could be blown around or damaged by the wind.


Wind Advisory issued April 7 at 2:52AM MDT until April 7 at 9:00PM MDT by NWS Pocatello ID

Effective: Tue April 7, 2026, 2:52 AM
Expires: Tue April 7, 2026, 9:00 PM

* WHAT...Southwest wind 30 to 35 mph with gusts up to 50 mph expected. * WHERE...Arco/Mud Lake Desert, Lower Snake River Plain, and Upper Snake River Plain. * WHEN...From noon today to 9 PM MDT this evening. * IMPACTS...Gusty wind could make driving difficult, especially for high profile vehicles. Unsecured objects may be blown around.

Wind this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Wednesday, April 8, 2026

Weather Forecast

Sunny
49.5°F
21°F
35.3°F
55%
0 in
0%
0%
11.2 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 3.33 μg/m3
PM10: 4.75 μg/m3
Carbon Monoxide: 125.53 μg/m3
Nitrogen Dioxide: 1.58 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 126.16 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:27 PM
Sunset: 8:02 PM
Daylight: 13 hrs 9 mins
Moonrise: 2:21 AM
Moon Transit: 6:18 AM
Moonset: 10:18 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:48 AM - 8:18 AM
3:17 PM - 5:47 PM

Minor Periods

9:48 AM - 11:18 AM
1:51 AM - 3:21 AM

Action Rating: 2 out of 5

Thursday, April 9, 2026

Weather Forecast

Sunny
53.1°F
28°F
39.4°F
49%
0 in
0%
0%
7.6 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 3.27 μg/m3
PM10: 5.15 μg/m3
Carbon Monoxide: 131.17 μg/m3
Nitrogen Dioxide: 2.65 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 113.6 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:26 PM
Sunset: 8:03 PM
Daylight: 13 hrs 12 mins
Moonrise: 3:07 AM
Moon Transit: 7:10 AM
Moonset: 11:17 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
4:08 PM - 6:38 PM

Minor Periods

10:47 AM - 12:17 AM
2:37 AM - 4:07 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Cloudy
55.8°F
30.4°F
43.6°F
55%
0 in
0%
0%
9.8 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 3.45 μg/m3
PM10: 5.32 μg/m3
Carbon Monoxide: 134.01 μg/m3
Nitrogen Dioxide: 3.99 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 108.6 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:26 PM
Sunset: 8:05 PM
Daylight: 13 hrs 15 mins
Moonrise: 3:44 AM
Moon Transit: 8:00 AM
Moonset: 12:23 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

7:30 AM - 10:00 AM
4:58 PM - 7:28 PM

Minor Periods

11:53 AM - 1:23 PM
3:14 AM - 4:44 AM

Action Rating: 2 out of 5

Saturday, April 11, 2026

Weather Forecast

Patchy rain nearby
57.9°F
32°F
44.9°F
55%
0.01 in
89%
0%
16.3 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 8.43 μg/m3
PM10: 31.27 μg/m3
Carbon Monoxide: 143.61 μg/m3
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 115.12 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:26 PM
Sunset: 8:06 PM
Daylight: 13 hrs 18 mins
Moonrise: 4:15 AM
Moon Transit: 8:49 AM
Moonset: 1:32 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

8:19 AM - 10:49 AM
5:46 PM - 8:16 PM

Minor Periods

1:02 PM - 2:32 PM
3:45 AM - 5:15 AM

Action Rating: 3 out of 5

Sunday, April 12, 2026

Weather Forecast

Patchy rain nearby
51.3°F
30.5°F
39.7°F
72%
0.03 in
84%
0%
10.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.02 μg/m3
PM10: 9.87 μg/m3
Carbon Monoxide: 139.16 μg/m3
Nitrogen Dioxide: 2.13 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 100.85 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:26 PM
Sunset: 8:07 PM
Daylight: 13 hrs 21 mins
Moonrise: 4:39 AM
Moon Transit: 9:36 AM
Moonset: 2:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

6:33 PM - 9:03 PM
9:06 AM - 11:36 AM

Minor Periods

2:13 PM - 3:43 PM
4:09 AM - 5:39 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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