Water Temperature of the South Branch Au Sable River in Grayling, MI

Current Water Temperature

60.1°F

Measurement Time: Thursday, June 25, 2026, 10:30 AM EDT

Temperature Locations

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Local Points of Interest

Au Sable State Forest-Grayling Unit; Luzerne, MI

South Branch Au Sable River

Station Name: SOUTH BRANCH AU SABLE RIVER NEAR LUZERNE, MI
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,070 feet

Nearest Address:
7801 Old M-72
Grayling, MI 49738
Crawford County

GPS Coordinates: 44.61473849, -84.455575

Nearby Water Temperatures

North Branch Au Sable River, Grayling, MI (7.3 mi)
Au Sable River, Luzerne, MI (9.1 mi)
Au Sable River, Mio, MI (16.3 mi)
Manistee River, Grayling, MI (20 mi)
Au Sable River, Curran, MI (30.4 mi)
Au Sable River, Glennie, MI (32.3 mi)
Au Sable River, South Branch, MI (37.6 mi)
Au Sable River, Glennie, MI (40 mi)
Rifle River, Sterling, MI (43.2 mi)
Au Sable River, Oscoda, MI (44.6 mi)
Au Sable River, Oscoda, MI (51.8 mi)
Thunder Bay River, Alpena, MI (59.1 mi)
Manistee River, Mesick, MI (62.5 mi)
Little Traverse Bay, Petoskey, MI (62.7 mi)
Lake Huron, Alpena, MI (63.6 mi)

Weather for Grayling, Michigan

Current Weather

61.2°F
Overcast
Overcast
61.2°F
65°F
94%
WNW 3.4 mph
4.2 mph
64.7°F
58.3°F
0.06 in
100%
9 mi
1012 mbar
4

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 70°F
L: 54°F
Patchy rain nearby
Fri
H: 71°F
L: 52°F
Sunny
Sat
H: 80°F
L: 52°F
Sunny
Sun
H: 81°F
L: 54°F
Patchy rain nearby
Mon
H: 84°F
L: 57°F

Air Quality

PM2.5: 2.9 μg/m3
PM10: 3 μg/m3
Carbon Monoxide: 113 μg/m3
Nitrogen Dioxide: 0.5 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 93 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:40 PM
Sunset: 9:27 PM
Daylight: 15 hrs 33 mins
Moonrise: 6:02 PM
Moon Transit: 10:33 PM
Moonset: 2:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

10:25 AM - 12:55 AM
12:00 AM - 12:00 AM

Minor Periods

5:32 PM - 7:02 PM
2:01 AM - 3:31 AM

Action Rating: 2 out of 5

Flood Advisory issued June 25 at 10:35AM EDT until June 25 at 12:45PM EDT by NWS Gaylord MI

Effective: Thu June 25, 2026, 10:35 AM
Expires: Thu June 25, 2026, 12:45 PM

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northern Michigan, including the following counties, Antrim, Crawford, Kalkaska and Otsego. * WHEN...Until 1245 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1035 AM EDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1.5 and 2.5 inches of rain have fallen. - Additional rainfall amounts up to 0.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Mancelona, Antrim, Waters, Otsego Lake State Park, Rapid City and Blue Lake Township. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.


Flood Advisory issued June 25 at 10:20AM EDT until June 25 at 1:30PM EDT by NWS Gaylord MI

Effective: Thu June 25, 2026, 10:20 AM
Expires: Thu June 25, 2026, 1:30 PM

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northern Michigan, including the following counties, Montmorency and Otsego. * WHEN...Until 130 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1020 AM EDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 1.5 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Lewiston and Chester Township. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.


Flood Advisory issued June 25 at 11:58AM EDT until June 25 at 3:00PM EDT by NWS Gaylord MI

Effective: Thu June 25, 2026, 11:58 AM
Expires: Thu June 25, 2026, 3:00 PM

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northern Michigan, including the following counties, Alcona, Alpena and Montmorency. * WHEN...Until 300 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1158 AM EDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2.5 inches of rain have fallen. - Additional rainfall amounts up to 0.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Lockwood Lake and Loud Township. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.


Flood Advisory issued June 25 at 10:16AM EDT until June 25 at 12:30PM EDT by NWS Gaylord MI

Effective: Thu June 25, 2026, 10:16 AM
Expires: Thu June 25, 2026, 12:30 PM

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northern Michigan, including the following counties, Alcona and Alpena. * WHEN...Until 1230 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 1016 AM EDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1.5 and 2.5 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Hubbard Lake and Curran. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.


Flood Advisory issued June 25 at 10:25AM EDT until June 25 at 1:30PM EDT by NWS Gaylord MI

Effective: Thu June 25, 2026, 10:25 AM
Expires: Thu June 25, 2026, 1:30 PM

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northern Michigan, including the following counties, Alcona and Alpena. * WHEN...Until 130 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1025 AM EDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Ossineke, The Town Of Hubbard Lake, Ossineke Township and Devils Lake. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.


Thursday, June 25, 2026

Weather Forecast

Patchy rain nearby
70.3°F
54°F
61.4°F
85%
0.11 in
71%
0%
7.2 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 3.8 μg/m3
PM10: 3.89 μg/m3
Carbon Monoxide: 117.42 μg/m3
Nitrogen Dioxide: 2.06 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 72.5 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:40 PM
Sunset: 9:27 PM
Daylight: 15 hrs 33 mins
Moonrise: 6:02 PM
Moon Transit: 10:33 PM
Moonset: 2:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

10:25 AM - 12:55 AM
12:00 AM - 12:00 AM

Minor Periods

5:32 PM - 7:02 PM
2:01 AM - 3:31 AM

Action Rating: 2 out of 5

Friday, June 26, 2026

Weather Forecast

Patchy rain nearby
71.3°F
51.8°F
60.6°F
81%
0 in
21%
0%
6.5 mph
6.7


Air Quality

AQI: 1 - Good
PM2.5: 3.2 μg/m3
PM10: 3.29 μg/m3
Carbon Monoxide: 112.38 μg/m3
Nitrogen Dioxide: 2.07 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 71.29 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:40 PM
Sunset: 9:27 PM
Daylight: 15 hrs 33 mins
Moonrise: 7:07 PM
Moon Transit: 11:21 PM
Moonset: 2:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%

Best Times for Fishing or Hunting

Major Periods

11:13 AM - 1:43 PM
12:00 AM - 12:00 AM

Minor Periods

6:37 PM - 8:07 PM
2:28 AM - 3:58 AM

Action Rating: 2 out of 5

Saturday, June 27, 2026

Weather Forecast

Sunny
79.8°F
51.5°F
64.6°F
70%
0 in
8%
0%
6.5 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 3.88 μg/m3
PM10: 4.01 μg/m3
Carbon Monoxide: 104.67 μg/m3
Nitrogen Dioxide: 2.46 μg/m3
Sulphur Dioxide: 0.22 μg/m3
Ozone: 65.33 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:41 PM
Sunset: 9:27 PM
Daylight: 15 hrs 32 mins
Moonrise: 8:08 PM
Moon Transit: 12:00 AM
Moonset: 3:32 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:02 AM - 2:32 PM

Minor Periods

7:38 PM - 9:08 PM
3:02 AM - 4:32 AM

Action Rating: 3 out of 5

Sunday, June 28, 2026

Weather Forecast

Sunny
80.8°F
53.8°F
67°F
64%
0 in
4%
0%
8.3 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 3.27 μg/m3
PM10: 3.4 μg/m3
Carbon Monoxide: 97.24 μg/m3
Nitrogen Dioxide: 1.24 μg/m3
Sulphur Dioxide: 0.44 μg/m3
Ozone: 74.52 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:41 PM
Sunset: 9:27 PM
Daylight: 15 hrs 32 mins
Moonrise: 9:03 PM
Moon Transit: 12:12 AM
Moonset: 4:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:53 AM - 3:23 PM

Minor Periods

8:33 PM - 10:03 PM
3:44 AM - 5:14 AM

Action Rating: 2 out of 5

Monday, June 29, 2026

Weather Forecast

Patchy rain nearby
83.7°F
57.2°F
71°F
67%
0.02 in
36%
0%
11.4 mph
0.8


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:41 PM
Sunset: 9:27 PM
Daylight: 15 hrs 31 mins
Moonrise: 9:49 PM
Moon Transit: 1:03 AM
Moonset: 5:05 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 AM
1:45 PM - 4:15 PM

Minor Periods

9:19 PM - 10:49 PM
4:35 AM - 6:05 AM

Action Rating: 5 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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