Water Temperature of Keweenaw Bay Near Jacobsville, MI

Current Water Temperature

54.3°F

Measurement Time: Wednesday, October 8, 2025, 7:20 AM EDT

Temperature Locations

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Local Points of Interest

Keweenaw Peninsula; Torch Lake Township, MI

Keweenaw Bay

Station Name: South Entry Buoy, South Keweenaw Peninsula, MI
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 587 feet

Nearest Address:
Offshore
Jacobsville, MI
Houghton County

GPS Coordinates: 46.969, -88.398

Nearby Water Temperatures

Pilgrim River, Houghton, MI (10.7 mi)
Falls River, L'Anse, MI (16.3 mi)
Sturgeon River, Pelkie, MI (20.9 mi)
Lake Superior, Calumet, MI (23 mi)
Salmon Trout River, Champion, MI (27.8 mi)
East Branch Salmon Trout River, Powell, MI (28.7 mi)
Middle Branch Escanaba River, , MI (40.5 mi)
Middle Branch Escanaba River, Humboldt, MI (41.4 mi)
Lake Superior, Marquette, MI (56.4 mi)
West Branch Ontonagon River, Bergland, MI (60.4 mi)
Lake Superior, Lake Superior, MI (70.3 mi)
Presque Isle River, Tula, MI (71.5 mi)
Washington Creek, Windigo, MI (74.5 mi)
Lake Superior, Isle Royale, MI (79.9 mi)
Popple River, Fence, WI (83.3 mi)

Weather Near Jacobsville, Michigan

Current Weather

8.1°F
Mist
Mist
-12.9°F
9°F
69%
NW 23.7 mph
27.6 mph
-10°F
4.7°F
0.03 in
60%
0 mi
1009 mbar
0

Five Day Weather Forecast

Light snow
Mon
H: 8°F
L: -0°F
Overcast
Tue
H: 10°F
L: 2°F
Overcast
Wed
H: 18°F
L: 6°F
Blizzard
Thu
H: 21°F
L: -1°F
Moderate or heavy snow showers
Fri
H: 23°F
L: -9°F

Air Quality

AQI: 1 - Good
PM2.5: 1.43 μg/m3
PM10: 1.53 μg/m3
Carbon Monoxide: 155.83 μg/m3
Nitrogen Dioxide: 1.43 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 8:32 AM
Sun Transit: 1:04 PM
Sunset: 5:37 PM
Daylight: 9 hrs 5 mins
Moonrise: 9:20 AM
Moon Transit: 1:52 PM
Moonset: 6:35 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
1:22 PM - 3:52 PM

Minor Periods

6:05 PM - 7:35 PM
8:50 AM - 10:20 AM

Action Rating: 5 out of 5

Cold Weather Advisory issued January 18 at 9:06PM EST until January 19 at 12:00PM EST by NWS Marquette MI

Effective: Sun January 18, 2026, 9:06 PM
Expires: Mon January 19, 2026, 7:00 AM

* WHAT...Very cold wind chills as low as 25 below expected. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...From 4 AM to noon EST Monday. * IMPACTS...The dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 15 minutes.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Winter Storm Warning issued January 18 at 9:02PM EST until January 19 at 10:00AM EST by NWS Marquette MI

Effective: Sun January 18, 2026, 9:02 PM
Expires: Mon January 19, 2026, 5:15 AM

* WHAT...Moderate to heavy snowfall and blowing snow expected. Total snow accumulations between 2 and 5 inches. Winds gusting as high as 40 mph. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...Until 10 AM EST Monday. * IMPACTS...Plan on slippery road conditions and very difficult to near impossible travel at times. Widespread blowing snow will significantly reduce visibility. The hazardous conditions will impact the Monday morning commute. * ADDITIONAL DETAILS...Windchills will fall into the -15F to -25F range by Monday morning.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages.


Winter Weather Advisory issued January 18 at 9:02PM EST until January 19 at 10:00AM EST by NWS Marquette MI

Effective: Sun January 18, 2026, 9:02 PM
Expires: Mon January 19, 2026, 5:15 AM

* WHAT...Moderate snowfall and blowing snow expected. Total snow accumulations between 1 and 4 inches. Winds gusting as high as 35 mph. * WHERE...Baraga County. * WHEN...From midnight tonight to 10 AM EST Monday. * IMPACTS...Plan on slippery road conditions and very difficult travel at times. Areas of blowing snow will significantly reduce visibility. The hazardous conditions will impact the Monday morning commute. * ADDITIONAL DETAILS...Expect wind chills in the -15F to -25F range Monday morning.

Slow down and use caution while traveling.
Monday, January 19, 2026

Weather Forecast

Light snow
7.5°F
-0°F
5.7°F
80%
0.85 in
63%
59%
23.7 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 1.41 μg/m3
PM10: 1.51 μg/m3
Carbon Monoxide: 158.79 μg/m3
Nitrogen Dioxide: 1.38 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 69.76 μg/m3

Astronomical

Sunrise: 8:32 AM
Sun Transit: 1:04 PM
Sunset: 5:37 PM
Daylight: 9 hrs 5 mins
Moonrise: 9:20 AM
Moon Transit: 1:52 PM
Moonset: 6:35 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
1:22 PM - 3:52 PM

Minor Periods

6:05 PM - 7:35 PM
8:50 AM - 10:20 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Overcast
9.5°F
1.9°F
5°F
75%
0 in
0%
4%
16.1 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.67 μg/m3
PM10: 1.76 μg/m3
Carbon Monoxide: 153.31 μg/m3
Nitrogen Dioxide: 1.64 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 75.32 μg/m3

Astronomical

Sunrise: 8:31 AM
Sun Transit: 1:04 PM
Sunset: 5:39 PM
Daylight: 9 hrs 7 mins
Moonrise: 9:42 AM
Moon Transit: 2:39 PM
Moonset: 7:48 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
2:09 PM - 4:39 PM

Minor Periods

7:18 PM - 8:48 PM
9:12 AM - 10:42 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Overcast
17.6°F
6.3°F
11.9°F
78%
0 in
0%
0%
15 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 4.9 μg/m3
Carbon Monoxide: 160.55 μg/m3
Nitrogen Dioxide: 4.1 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 70.12 μg/m3

Astronomical

Sunrise: 8:30 AM
Sun Transit: 1:04 PM
Sunset: 5:40 PM
Daylight: 9 hrs 10 mins
Moonrise: 10:01 AM
Moon Transit: 3:25 PM
Moonset: 9:02 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

2:46 AM - 5:16 AM
2:55 PM - 5:25 PM

Minor Periods

8:32 PM - 10:02 PM
9:31 AM - 11:01 AM

Action Rating: 3 out of 5

Thursday, January 22, 2026

Weather Forecast

Blizzard
21.2°F
-0.9°F
8.9°F
86%
0.17 in
81%
52%
19.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.67 μg/m3
PM10: 1.76 μg/m3
Carbon Monoxide: 161.17 μg/m3
Nitrogen Dioxide: 1.63 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 70.24 μg/m3

Astronomical

Sunrise: 8:30 AM
Sun Transit: 1:05 PM
Sunset: 5:42 PM
Daylight: 9 hrs 12 mins
Moonrise: 10:18 AM
Moon Transit: 12:00 AM
Moonset: 10:16 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

9:46 PM - 11:16 PM
9:48 AM - 11:18 AM

Action Rating: 2 out of 5

Friday, January 23, 2026

Weather Forecast

Moderate or heavy snow showers
22.8°F
-9.4°F
6.5°F
90%
0.11 in
67%
66%
17.7 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.09 μg/m3
PM10: 1.16 μg/m3
Carbon Monoxide: 158.06 μg/m3
Nitrogen Dioxide: 1.19 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 64.46 μg/m3

Astronomical

Sunrise: 8:29 AM
Sun Transit: 1:05 PM
Sunset: 5:43 PM
Daylight: 9 hrs 14 mins
Moonrise: 10:34 AM
Moon Transit: 9:54 AM
Moonset: 11:30 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

9:24 AM - 11:54 AM
9:24 AM - 11:54 AM

Minor Periods

12:00 AM - 12:00 AM
10:04 AM - 11:34 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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