Water Temperature of the Thunder Bay River in Alpena, MI

Current Water Temperature

52.5°F

Measurement Time: Wednesday, May 20, 2026, 3:18 PM EDT

Temperature Locations

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Local Points of Interest

North River Front Park; South River Front Park; Thunder Bay; Lake Huron

Thunder Bay River

Station Name: Alpena
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 577 feet

Sensor Depth: -15 feet

Nearest Address:
160 E Fletcher St
Alpena, MI 49707
Alpena County

GPS Coordinates: 45.063000, -83.428600

Nearby Water Temperatures

Lake Huron, Alpena, MI (9.3 mi)
Lake Huron, Alpena, MI (34.9 mi)
Au Sable River, Curran, MI (37 mi)
Au Sable River, Glennie, MI (39.2 mi)
Au Sable River, Oscoda, MI (41.4 mi)
Au Sable River, Oscoda, MI (43.3 mi)
Au Sable River, Glennie, MI (43.8 mi)
Au Sable River, South Branch, MI (43.8 mi)
Au Sable River, Mio, MI (44.3 mi)
Au Sable River, Luzerne, MI (50 mi)
North Branch Au Sable River, Grayling, MI (54.1 mi)
South Branch Au Sable River, Grayling, MI (59.1 mi)
Lake Huron, Bois Blanc Island, MI (59.9 mi)
Lake Huron, De Tour Village, MI (68.1 mi)
Lake Huron, Port Austin, MI (73.3 mi)

Weather for Alpena, Michigan

Current Weather

50.8°F
Sunny
Sunny
46°F
50.8°F
48%
NNW 13.9 mph
17.8 mph
46°F
32°F
0 in
0%
6 mi
1025 mbar
6.7

Five Day Weather Forecast

Sunny
Wed
H: 51°F
L: 38°F
Sunny
Thu
H: 48°F
L: 36°F
Partly Cloudy
Fri
H: 49°F
L: 39°F
Partly Cloudy
Sat
H: 53°F
L: 42°F
Overcast
Sun
H: 54°F
L: 45°F

Air Quality

PM2.5: 1.25 μg/m3
PM10: 1.35 μg/m3
Carbon Monoxide: 120.85 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:30 PM
Sunset: 9:02 PM
Daylight: 15 hrs 3 mins
Moonrise: 9:27 AM
Moon Transit: 5:37 PM
Moonset: 12:54 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

5:32 AM - 8:02 AM
5:07 PM - 7:37 PM

Minor Periods

8:57 AM - 10:27 AM
12:24 AM - 1:54 AM

Action Rating: 3 out of 5

Freeze Watch issued May 19 at 2:00PM EDT until May 21 at 9:00AM EDT by NWS Gaylord MI

Effective: Tue May 19, 2026, 2:00 PM
Expires: Wed May 20, 2026, 6:00 PM

* WHAT...Sub-freezing temperatures as low as 28 possible. * WHERE...Most of Northern Lower Michigan. * WHEN...From late Wednesday night through Thursday morning. * IMPACTS...Frost and freeze conditions could damage or kill crops and other sensitive vegetation. * ADDITIONAL DETAILS...Temperatures may be closer to the mid 30s near the Lake Michigan and Huron shorelines.

Take steps now to protect tender plants from the cold.


Freeze Watch issued May 20 at 2:32AM EDT until May 21 at 9:00AM EDT by NWS Gaylord MI

Effective: Wed May 20, 2026, 2:32 AM
Expires: Wed May 20, 2026, 2:45 PM

* WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...A portion of Northern Lower Michigan. * WHEN...From late tonight through Thursday morning. * IMPACTS...Frost and freeze conditions could damage or kill crops and other sensitive vegetation. * ADDITIONAL DETAILS...Coldest temperatures are expected across interior Northern Lower Michigan. Temperatures may be closer to the mid 30s near the Lake Michigan and Huron shorelines.

Take steps now to protect tender plants from the cold.


Frost Advisory issued May 20 at 1:35PM EDT until May 21 at 9:00AM EDT by NWS Gaylord MI

Effective: Wed May 20, 2026, 1:35 PM
Expires: Thu May 21, 2026, 9:00 AM

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...A portion of Northern Lower Michigan. * WHEN...From 1 AM to 9 AM EDT Thursday. * 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.


Freeze Warning issued May 20 at 1:35PM EDT until May 21 at 9:00AM EDT by NWS Gaylord MI

Effective: Wed May 20, 2026, 1:35 PM
Expires: Thu May 21, 2026, 9:00 AM

* WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Crawford, Kalkaska, Montmorency, Oscoda, and Otsego Counties. * WHEN...From 1 AM to 9 AM EDT Thursday. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation. * ADDITIONAL DETAILS...Coldest temperatures will be in the high valleys and other typically cold locations. The duration of temperatures at or below freezing will likely be between 2 and 4 hours.

Take steps now to protect tender plants from the cold.
Wednesday, May 20, 2026

Weather Forecast

Sunny
51.3°F
38.1°F
45.6°F
63%
0 in
0%
0%
14.3 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 1.08 μg/m3
PM10: 1.11 μg/m3
Carbon Monoxide: 120.45 μg/m3
Nitrogen Dioxide: 1.53 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 75.64 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:30 PM
Sunset: 9:02 PM
Daylight: 15 hrs 3 mins
Moonrise: 9:27 AM
Moon Transit: 5:37 PM
Moonset: 12:54 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

5:32 AM - 8:02 AM
5:07 PM - 7:37 PM

Minor Periods

8:57 AM - 10:27 AM
12:24 AM - 1:54 AM

Action Rating: 3 out of 5

Thursday, May 21, 2026

Weather Forecast

Sunny
47.7°F
35.9°F
41.9°F
67%
0 in
0%
0%
9.2 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 2.07 μg/m3
PM10: 2.43 μg/m3
Carbon Monoxide: 119.17 μg/m3
Nitrogen Dioxide: 1.89 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 71.28 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:30 PM
Sunset: 9:03 PM
Daylight: 15 hrs 5 mins
Moonrise: 10:49 AM
Moon Transit: 6:33 PM
Moonset: 1:33 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

6:31 AM - 9:01 AM
6:03 PM - 8:33 PM

Minor Periods

10:19 AM - 11:49 AM
1:03 AM - 2:33 AM

Action Rating: 2 out of 5

Friday, May 22, 2026

Weather Forecast

Partly Cloudy
49.3°F
39°F
44.4°F
64%
0 in
0%
0%
8.7 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 3.43 μg/m3
PM10: 3.84 μg/m3
Carbon Monoxide: 135.66 μg/m3
Nitrogen Dioxide: 2.19 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 70.8 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:30 PM
Sunset: 9:04 PM
Daylight: 15 hrs 7 mins
Moonrise: 12:07 AM
Moon Transit: 7:24 PM
Moonset: 2:03 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

7:24 AM - 9:54 AM
6:54 PM - 9:24 PM

Minor Periods

11:37 AM - 1:07 PM
1:33 AM - 3:03 AM

Action Rating: 3 out of 5

Saturday, May 23, 2026

Weather Forecast

Partly Cloudy
52.7°F
42.3°F
46.5°F
78%
0 in
0%
0%
14.8 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 3.86 μg/m3
PM10: 4.22 μg/m3
Carbon Monoxide: 145.23 μg/m3
Nitrogen Dioxide: 2.74 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 75.08 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:30 PM
Sunset: 9:05 PM
Daylight: 15 hrs 9 mins
Moonrise: 1:21 PM
Moon Transit: 8:10 PM
Moonset: 2:27 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

8:12 AM - 10:42 AM
7:40 PM - 10:10 PM

Minor Periods

12:51 AM - 2:21 PM
1:57 AM - 3:27 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Overcast
53.5°F
44.8°F
48.3°F
93%
0 in
0%
0%
9.8 mph
2


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: 5:56 AM
Sun Transit: 1:30 PM
Sunset: 9:06 PM
Daylight: 15 hrs 11 mins
Moonrise: 2:32 PM
Moon Transit: 8:54 PM
Moonset: 2:46 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

8:56 AM - 11:26 AM
8:24 PM - 10:54 PM

Minor Periods

2:02 PM - 3:32 PM
2:16 AM - 3:46 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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