Lacon, IL Weather Forecast
Local 7-day forecast
Scattered Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Lacon, IL in one place.
Isolated rain showers between 8am and 9am, then scattered showers and thunderstorms. Mostly sunny, with a high near 89. Southwest wind 1 to 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Lacon, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 16, 2026 10:42 PM CDT.
The active forecast window currently covers Jul 17 to Jul 23, 2026 for Lacon, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 16, 2026 10:42 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lacon
Saturday looks like the warmest upcoming period in Lacon at 91 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Tuesday at about 7 to 14 mph NW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 16, 2026 10:42 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Scattered showers and thunderstorms before 10pm. Partly cloudy, with a low around 73. Southwest wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Sunny, with a high near 91. Heat index values as high as 101. West wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. North wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 85. East northeast wind around 5 mph.
Mostly clear, with a low around 67. Southeast wind around 2 mph.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 87.
Mostly clear, with a low around 62.
Sunny, with a high near 80.
Mostly clear, with a low around 60.
Mostly sunny, with a high near 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 17
|
Scattered Showers And Thunderstorms
|
89°F |
1 to 6 mph
SW
|
|
Friday Night
Jul 17
|
Scattered Showers And Thunderstorms then Partly Cloudy
|
73°F |
6 mph
SW
|
|
Saturday
Jul 18
|
Sunny then Chance Showers And Thunderstorms
|
91°F |
6 to 10 mph
W
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
67°F |
3 to 7 mph
N
|
|
Sunday
Jul 19
|
Sunny
|
85°F |
5 mph
ENE
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
67°F |
2 mph
SE
|
|
Monday
Jul 20
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
3 to 10 mph
SSW
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
72°F |
6 to 9 mph
WSW
|
|
Tuesday
Jul 21
|
Slight Chance Showers And Thunderstorms then Sunny
|
87°F |
7 to 14 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
62°F |
5 to 13 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
80°F |
8 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
60°F |
1 to 6 mph
ENE
|
|
Thursday
Jul 23
|
Mostly Sunny
|
80°F |
1 to 5 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lacon.
