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Long Lake
72°F
Long Lake
Union, MI · Cass County
72°F water241 acres42 ft deep
Right Now
87°
Clear
Water
72°
Wind
4 mph
NW
Gusts
8 mph
Pressure
29.98
steady
LakeMonster planner
Plan Long Lake
Long Lake
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. The planning constraint is finding the right window.
Best first move
Scout the first break or defined cover closest to a feeding flat.
keep shade, oxygen, and a nearby depth change in the plan A workable forecast window starts near 6am with about 3 mph wind.
8 lake data sources in this readSee dataHideLatest source updated Jul 16, 6:45 AM EDT
- Current water temp
- 72°F
- Water temp history
- 479 readings
- Hourly weather
- 224 hours
- Solunar timing
- 3/5
- Satellite imagery
- 186 captures
- Thermal imagery
- 749 captures
- Map structure
- available
- Nearby lakes
- 3 options
The quick read is a planning aid, not a safety or access determination. The assistant will state uncertainty when the page does not contain a specific observation.
Forecast - Thu, Jul 16
High / Low
90° / 69°
Wind
3 mph
gusts 10 mph
Precip
0%
UV
7
Sunrise
6:22 AM
Sunset
9:15 PM
7-Day Weather Outlook
Every forecast metric for the week ahead, plus best days for fishing, boating, swimming, and paddling.
9 day forecast
Best Days This Week
Quick recommendations based on wind, precip, pressure, solunar, and temperature.
Best for Fishing
Thu, Jul 23
62/100
Thu, Jul 23 scores 62/100: Solunar 3/5, Wind 5 mph.
Best for Boating
Thu, Jul 16
90/100
Thu, Jul 16 scores 90/100: Wind 5 mph, Rain 0%.
Best for Swimming
Thu, Jul 23
80/100
Thu, Jul 23 scores 80/100: Air 77°F, Rain 0%.
Best for Paddling
Thu, Jul 16
85/100
Thu, Jul 16 scores 85/100: Wind 5 mph, Rain 0%.
Temperature Range
High Low
Precip & Wind
Rain % Wind mph
Daily Breakdown
Swipe to see all 9 days
| Metric | Thu16 | Fri17 | Sat18 | Sun19 | Mon20 | Tue21 | Wed22 | Thu23 | Fri24 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Partly Cloudy | Thunderstorms | Drizzle | Mostly Clear | Drizzle | Drizzle | Mostly Clear | Partly Cloudy | Partly Cloudy |
| High / Low | 90°/69° | 88°/67° | 86°/70° | 83°/63° | 86°/64° | 85°/70° | 75°/60° | 77°/58° | 77°/62° |
| Precip | 0% | 53% | 49% | 0% | 35% | 70% | 0% | 0% | 0% |
| Wind | 5 mphgust 10 | 8 mphgust 16 | 14 mphgust 26 | 6 mphgust 13 | 9 mphgust 20 | 12 mphgust 22 | 10 mphgust 21 | 5 mphgust 8 | 5 mphgust 11 |
| Pressure | 30.02" stable | 29.99" falling | 29.84" falling | 29.91" rising | 29.85" falling | 29.78" falling | 29.96" rising | 30.07" rising | 30.00" falling |
| UV Index | 7 | 8 | 7 | 8 | 7 | 7 | 9 | 6 | 6 |
| Sunrise | 6:22 AM | 6:23 AM | 6:24 AM | 6:25 AM | 6:26 AM | 6:27 AM | 6:27 AM | 6:28 AM | 6:29 AM |
| Sunset | 9:15 PM | 9:15 PM | 9:14 PM | 9:13 PM | 9:12 PM | 9:12 PM | 9:11 PM | 9:10 PM | 9:09 PM |
| Bite Rating | 3/5NEW | 2/5waxing crescent | 2/5waxing crescent | 2/5waxing crescent | 3/5waxing crescent | 2/5first quarter | 2/5first quarter | 3/5first quarter | 2/5waxing gibbous |
Today Read
Long LakeWind read
Calm
3 mph avg
Water read
72°
Warm-water bite
Air range
69° / 90°
today
Precip
0%
low concern
Today's forecast for Long Lake has calm wind, 69F to 90F air temperatures, 0% chance of precipitation, and 72F water.
Fishing Forecast
NEW
3/5
Major
3:34 PM - 6:04 PM
Minor
8:27 AM - 9:57 AM
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July 12, 2026
Water Temperature History
Current
73°
Jul 26
Low
33°
Feb 8
Average
58°
Last 12 Months
Warmest avg: June (77°F)
Coolest avg: February (36°F)
Rapid warming: April → May (+12°F)
Sharpest cooling: October → November (-17°F)
Weather Forecast
Wind speed, gusts, and pressure trends for trip timing.
7 day view
Hourly Wind Forecast
Swipe days or tap points
16
12am - 11pm
Wind SpeedWind Gust
Tap pointsPeak Wind
5 mph
9am
Peak Gust
10 mph
highest gust
Pressure
30.01 inHg
rising
Visibility
10 mi
19% clouds
Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days
Daily Pressure Forecast
Pressure stability helps plan windows
Pressure
Tap for detailsTap chart points for pressure details
Nearby Lakes
Fishing Forecast
3/5NEW
Major3:34 PM - 6:04 PM
Minor8:27 AM - 9:57 AM
Water at 72°F -- warm-water species active.
Nearby Lakes
Lake facts
About Long Lake
Direct answers from the lake profile and latest available condition data. Verify access, regulations, weather alerts, and safety conditions with local authorities.
The latest available LakeMonster reading for Long Lake, updated Jul 16, 2026, shows 72°F surface water temperature, clear, 4 mph wind. Conditions can vary across the lake and change quickly, so check local weather, access notices, and on-water observations before acting.
Long Lake has 241 acres and a reported maximum depth of about 42 feet based on the latest lake profile available to LakeMonster.
Long Lake is listed in Union, Cass County, MI. Check the responsible local or state agency for current access rules, permits, closures, and boating restrictions.