
Lake Decatur
Decatur, IL · Macon County
Right Now
Mostly Clear
Water
74°
Wind
10 mph
S
Gusts
19 mph
Pressure
29.99
falling
Forecast - Fri, Jun 5
High / Low
82° / 65°
Wind
12 mph
gusts 26 mph
Precip
59%
UV
5
Sunrise
10:28 AM
Sunset
1:20 AM
Today Read
Lake DecaturWind read
Moderate
12 mph avg
Water read
74°
Warm-water bite
Air range
65° / 82°
today
Precip
59%
watch timing
Today's forecast for Lake Decatur has moderate wind, 65F to 82F air temperatures, 59% chance of precipitation, and 74F water.
Ask what to do at Lake Decatur today.
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 pattern for Largemouth bass / Smallmouth bass
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. Wind is not the main constraint, so timing and presentation can drive the plan. With a weak solunar score, favor stable weather windows.
Uses this lake data
Trip read from the AI planner
Short window onlyFishing Forecast
waning gibbous
Major
9:22 AM - 11:52 AM
Minor
5:00 AM - 5:00 AM
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Detailed temperature readings across your lake.
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Fish Species
9Water Temperature History
Current
81°
Jun 14
Low
33°
Nov 30
Average
57°
Last 12 Months
Warmest avg: June (72°F)
Coolest avg: January (33°F)
Rapid warming: April → May (+11°F)
Sharpest cooling: September → October (-11°F)
Weather Forecast
Wind speed, gusts, and pressure trends for trip timing.
Hourly Wind Forecast
Swipe days or tap points
5
12am - 11pm
Peak Wind
17 mph
12pm
Peak Gust
26 mph
highest gust
Pressure
30.01 inHg
steady
Visibility
14 mi
20% 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
Tap chart points for pressure details
Nearby Lakes
Fishing Forecast
2/5waning gibbous
Water at 74°F -- warm-water species active.
Fish Species
9Nearby Lakes
FAQ
About Lake Decatur
Lake Decatur covers 2905.00 acres (4.54 square miles) with a maximum depth of 6.71 meters (~22 feet).
Lake Decatur is located in Decatur, Macon County, IL. It is accessible to the public for outdoor activities.