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

Graceville, MN · Big Stone County
Right Now
Mostly Clear
Water
78°
Wind
13 mph
W
Gusts
22 mph
Pressure
29.70
steady
Forecast - Fri, Jun 12
High / Low
78° / 57°
Wind
12 mph
gusts 33 mph
Precip
29%
UV
7
Sunrise
10:36 AM
Sunset
2:15 AM
Today Read
Lannon LakeWind read
Moderate
12 mph avg
Water read
78°
Warm-water bite
Air range
57° / 78°
today
Precip
29%
low concern
Today's forecast for Lannon Lake has moderate wind, 57F to 78F air temperatures, 29% chance of precipitation, and 78F water.
The planner reads this page's water temp, forecast, fish species, solunar timing, reports, and imagery context so you can decide what to throw, when to go, and when to move.
Today's AI read
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. Wind matters today; use it only where control stays safe. With a weak solunar score, favor stable weather windows.
Uses this lake data
Trip read from the AI planner
Short window onlyFishing Forecast
waning crescent
Major
3:23 PM - 5:53 PM
Minor
7:39 AM - 9:09 AM
Detailed temperature readings across your lake.
No credit card required for preview
Water Temperature History
Current
77°
Jun 21
Low
32°
Mar 8
Average
58°
Last 12 Months
Warmest avg: June (75°F)
Coolest avg: March (41°F)
Rapid warming: April → May (+14°F)
Sharpest cooling: September → October (-16°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
5am - 4am
Peak Wind
19 mph
8pm
Peak Gust
33 mph
highest gust
Pressure
29.76 inHg
rising
Visibility
13 mi
11% 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
2/5waning crescent
Water at 78°F -- warm-water species active.
Nearby Lakes
FAQ
Lannon Lake covers 197.00 acres (0.31 square miles)
Lannon Lake is located in Graceville, Big Stone County, MN. It is accessible to the public for outdoor activities.