Loading lake details...
Loading lake details...

Grand Marais, MI · Alger County
Right Now
Clear
Water
69°
Wind
4 mph
WNW
Gusts
7 mph
Pressure
29.88
steady
Forecast - Sun, Jun 21
High / Low
63° / 45°
Wind
4 mph
gusts 11 mph
Precip
44%
UV
7
Sunrise
9:50 AM
Sunset
1:41 AM
Every forecast metric for the week ahead — plus AI-picked best days for fishing, boating, swimming, and paddling.
Instant recommendations based on wind, precip, pressure, solunar, and temperature.
Best for Fishing
Sat, Sat, Jun 27
Sat, Jun 27 scores 70/100 — Solunar 3/5, Wind 4 mph.
Best for Boating
Tue, Tue, Jun 23
Tue, Jun 23 scores 90/100 — Wind 7 mph, Rain 0%.
Best for Swimming
Sat, Sat, Jun 27
Sat, Jun 27 scores 70/100 — Air 65°F, Rain 0%.
Best for Paddling
Tue, Tue, Jun 23
Tue, Jun 23 scores 85/100 — Wind 7 mph, Rain 0%.
Ask the AI assistant about this week:
Swipe to see all 9 days
| Metric | Sun21 | Mon22 | Tue23 | Wed24 | Thu25 | Fri26 | Sat27 | Sun28 | Mon29 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Rain | Partly Cloudy | Partly Cloudy | Drizzle | Drizzle | Drizzle | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| High / Low | 63°/45° | 55°/44° | 61°/46° | 61°/51° | 59°/51° | 61°/48° | 65°/49° | 70°/53° | 76°/53° |
| Precip | 44% | 0% | 0% | 65% | 67% | 44% | 0% | 0% | 52% |
| Wind | 7 mphgust 11 | 9 mphgust 17 | 7 mphgust 13 | 8 mphgust 16 | 7 mphgust 13 | 7 mphgust 13 | 4 mphgust 12 | 8 mphgust 15 | 12 mphgust 21 |
| Pressure | 29.95" stable | 30.07" rising | 30.18" rising | 30.04" falling | 29.93" falling | 29.99" rising | 30.01" rising | 30.03" rising | 30.06" rising |
| UV Index | 7 | 5 | 5 | 4 | 4 | 6 | 6 | 6 | 7 |
| Sunrise | 9:50 AM | 9:50 AM | 9:51 AM | 9:51 AM | 9:51 AM | 9:52 AM | 9:52 AM | 9:53 AM | 9:53 AM |
| Sunset | 1:41 AM | 1:41 AM | 1:41 AM | 1:41 AM | 1:42 AM | 1:42 AM | 1:41 AM | 1:41 AM | 1:41 AM |
| Bite Rating | 3/5first quarter | 2/5first quarter | 2/5first quarter | 3/5first quarter | 3/5waxing gibbous | 2/5waxing gibbous | 3/5waxing gibbous | 2/5waxing gibbous | 5/5FULL |
Today Read
Grand Sable LakeWind read
Calm
4 mph avg
Water read
69°
Warm-water bite
Air range
45° / 63°
today
Precip
44%
watch timing
Today's forecast for Grand Sable Lake has calm wind, 45F to 63F air temperatures, 44% chance of precipitation, and 69F water.
AI read · today
Active temps make wind edges, shallow cover, and feeding windows more important. The planning constraint is finding the right window.
Reads 9 live data sources for this lake — tap a stat or ask anything to see its work.
Fishing Forecast
first quarter
Major
11:14 PM - 1:44 AM
Minor
5:11 PM - 6:41 PM
Detailed temperature readings across your lake.
No credit card required for preview
Fish Species
5Water Temperature History
Current
69°
Jun 28
Low
32°
Feb 16
Average
52°
Last 12 Months
Warmest avg: July (70°F)
Coolest avg: March (38°F)
Rapid warming: May → June (+15°F)
Sharpest cooling: September → October (-13°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
4am - 3am
Peak Wind
7 mph
5pm
Peak Gust
11 mph
highest gust
Pressure
29.93 inHg
rising
Visibility
14 mi
8% clouds
Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days
Pressure stability helps plan windows
Tap chart points for pressure details
Nearby Lakes
Fishing Forecast
3/5first quarter
Water at 69°F -- warm-water species active.
Fish Species
5Nearby Lakes
FAQ
Grand Sable Lake covers 630.00 acres (0.98 square miles) with a maximum depth of 25.91 meters (~85 feet).
Grand Sable Lake is located in Grand Marais, Alger County, MI. It is accessible to the public for outdoor activities.