Weather for Grand Marais, Minnesota
Current Weather
48.9°F
Sunny
47.9°F
62.6°F
97%
NW 3.6 mph
7.5 mph
62.6°F
55.3°F
0 in
0%
6 mi
1016 mbar
0.1
Five Day Weather Forecast
Tue
H: 67°F
L: 57°F
Wed
H: 64°F
L: 55°F
Thu
H: 66°F
L: 54°F
Fri
H: 63°F
L: 54°F
Sat
H: 71°F
L: 55°F
Air Quality
AQI:
1 - Good
PM2.5:
5.6 μg/m3
PM10:
6 μg/m3
Carbon Monoxide: 116 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 63 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 63 μg/m3
Astronomical
Sunrise: 5:11 AM
Sun Transit: 1:06 PM
Sunset: 9:01 PM
Daylight: 15 hrs 50 mins
Sun Transit: 1:06 PM
Sunset: 9:01 PM
Daylight: 15 hrs 50 mins
Moonrise: 12:58 AM
Moon Transit: 6:35 AM
Moonset: 1:29 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%
Moon Transit: 6:35 AM
Moonset: 1:29 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%
Best Times for Fishing or Hunting
Major Periods
6:05 AM - 8:35 AM6:26 PM - 8:56 PM
Minor Periods
12:59 AM - 2:29 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Marine Weather Statement issued July 7 at 3:02AM CDT by NWS Duluth MN
Effective: Tue July 7, 2026, 3:02 AM
Expires: Tue July 7, 2026, 5:00 AM
The areas affected include... Chequamegon Bay-Bayfield to Oak Point WI... Duluth MN to Port Wing WI... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Oak Point to Saxon Harbor WI... Outer Apostle Islands Beyond 5 NM from Mainland... Port Wing to Sand Island WI... Sand Island to Bayfield WI... Silver Bay Harbor to Two Harbors MN... Taconite Harbor to Silver Bay Harbor MN... Two Harbors to Duluth MN... At 301 AM CDT, observation stations in the Twin Ports reported a gust front, producing winds to around 30 to 34 knots. This gust front was located along a line extending from 7 nm east of Silver Bay Marina and Ore Dock to 8 nm south of Superior Harbor, moving east at 30 knots.
Mariners can expect gusty winds to 30 knots and locally higher waves Boaters should seek safe harbor immediately until these storms pass.
Tuesday, July 7, 2026
Weather Forecast
Sunny
66.5°F
57°F
62.1°F
82%
0.01 in
26%
0%
8.7 mph
6.3
Air Quality
AQI:
1 - Good
PM2.5:
3.78 μg/m3
PM10:
4 μg/m3
Carbon Monoxide: 116.71 μg/m3
Nitrogen Dioxide: 1.63 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 80.58 μg/m3
Nitrogen Dioxide: 1.63 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 80.58 μg/m3
Astronomical
Sunrise: 5:11 AM
Sun Transit: 1:06 PM
Sunset: 9:01 PM
Daylight: 15 hrs 50 mins
Sun Transit: 1:06 PM
Sunset: 9:01 PM
Daylight: 15 hrs 50 mins
Moonrise: 12:58 AM
Moon Transit: 6:35 AM
Moonset: 1:29 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%
Moon Transit: 6:35 AM
Moonset: 1:29 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%
Best Times for Fishing or Hunting
Major Periods
6:05 AM - 8:35 AM6:26 PM - 8:56 PM
Minor Periods
12:59 AM - 2:29 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Wednesday, July 8, 2026
Weather Forecast
Patchy rain nearby
64.2°F
55°F
59.2°F
87%
0.02 in
52%
0%
5.8 mph
6.4
Air Quality
AQI:
1 - Good
PM2.5:
5.87 μg/m3
PM10:
6.83 μg/m3
Carbon Monoxide: 102.83 μg/m3
Nitrogen Dioxide: 1.43 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 70.46 μg/m3
Nitrogen Dioxide: 1.43 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 70.46 μg/m3
Astronomical
Sunrise: 5:12 AM
Sun Transit: 1:06 PM
Sunset: 9:00 PM
Daylight: 15 hrs 48 mins
Sun Transit: 1:06 PM
Sunset: 9:00 PM
Daylight: 15 hrs 48 mins
Moonrise: 12:16 AM
Moon Transit: 7:22 AM
Moonset: 2:48 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%
Moon Transit: 7:22 AM
Moonset: 2:48 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%
Best Times for Fishing or Hunting
Major Periods
6:52 AM - 9:22 AM7:15 PM - 9:45 PM
Minor Periods
2:18 PM - 3:48 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Thursday, July 9, 2026
Weather Forecast
Patchy rain nearby
65.7°F
54.2°F
59.6°F
81%
0.01 in
33%
0%
7.2 mph
6.6
Air Quality
AQI:
1 - Good
PM2.5:
3.52 μg/m3
PM10:
4.28 μg/m3
Carbon Monoxide: 123.25 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 61 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 61 μg/m3
Astronomical
Sunrise: 5:13 AM
Sun Transit: 1:06 PM
Sunset: 9:00 PM
Daylight: 15 hrs 47 mins
Sun Transit: 1:06 PM
Sunset: 9:00 PM
Daylight: 15 hrs 47 mins
Moonrise: 12:37 AM
Moon Transit: 8:14 AM
Moonset: 4:11 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%
Moon Transit: 8:14 AM
Moonset: 4:11 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%
Best Times for Fishing or Hunting
Major Periods
7:44 AM - 10:14 AM8:09 PM - 10:39 PM
Minor Periods
3:41 PM - 5:11 PM12:07 AM - 1:37 AM
Action Rating: 2 out of 5
Friday, July 10, 2026
Weather Forecast
Partly Cloudy
63.2°F
54.2°F
57.8°F
68%
0.02 in
36%
0%
5.1 mph
8
Air Quality
AQI:
1 - Good
PM2.5:
3.55 μg/m3
PM10:
3.9 μg/m3
Carbon Monoxide: 155.25 μg/m3
Nitrogen Dioxide: 1.92 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 80.67 μg/m3
Nitrogen Dioxide: 1.92 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 80.67 μg/m3
Astronomical
Sunrise: 5:14 AM
Sun Transit: 1:06 PM
Sunset: 8:59 PM
Daylight: 15 hrs 46 mins
Sun Transit: 1:06 PM
Sunset: 8:59 PM
Daylight: 15 hrs 46 mins
Moonrise: 1:04 AM
Moon Transit: 9:11 AM
Moonset: 5:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%
Moon Transit: 9:11 AM
Moonset: 5:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%
Best Times for Fishing or Hunting
Major Periods
8:41 AM - 11:11 AM9:09 PM - 11:39 PM
Minor Periods
5:06 PM - 6:36 PM12:34 AM - 2:04 AM
Action Rating: 3 out of 5
Saturday, July 11, 2026
Weather Forecast
Sunny
71.3°F
55.3°F
63.8°F
73%
0.02 in
36%
0%
8.5 mph
6
Air Quality
AQI:
1 - Good
PM2.5:
2.7 μg/m3
PM10:
2.99 μg/m3
Carbon Monoxide: 161.75 μg/m3
Nitrogen Dioxide: 1.05 μg/m3
Sulphur Dioxide: 0.34 μg/m3
Ozone: 90.5 μg/m3
Nitrogen Dioxide: 1.05 μg/m3
Sulphur Dioxide: 0.34 μg/m3
Ozone: 90.5 μg/m3
Astronomical
Sunrise: 5:15 AM
Sun Transit: 1:06 PM
Sunset: 8:59 PM
Daylight: 15 hrs 44 mins
Sun Transit: 1:06 PM
Sunset: 8:59 PM
Daylight: 15 hrs 44 mins
Moonrise: 1:42 AM
Moon Transit: 10:14 AM
Moonset: 6:57 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%
Moon Transit: 10:14 AM
Moonset: 6:57 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:44 AM - 12:14 AM
Minor Periods
6:27 PM - 7:57 PM1:12 AM - 2:42 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.