Lee County, IL Weather Forecast
County weather hub
Mostly Clear
Compare major city weather across Lee County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly clear, with a low around 60. South wind around 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Lee County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Lee County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 29 to Sep 4, 2026
- Latest sync
- Aug 29, 2026 5:53 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Lee County
Monday looks like the warmest upcoming period in Lee County at 90 degrees F.
Overnight is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Sunday at about 10 to 15 mph SSW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 29, 2026 5:53 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers between 3pm and 4pm. Mostly cloudy, with a high near 80. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 67. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 10am. Partly sunny, with a high near 86. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Partly cloudy, with a low around 69. South wind around 10 mph, with gusts as high as 20 mph.
Partly sunny, with a high near 90.
Partly cloudy, with a low around 72.
Mostly sunny, with a high near 90.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 90.
A chance of showers and thunderstorms after 7pm. Mostly clear, with a low around 70.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68.
A chance of showers and thunderstorms before 7am. Partly sunny, with a high near 86.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Aug 29
|
Mostly Clear
|
60°F |
5 mph
S
|
|
Saturday
Aug 29
|
Mostly Cloudy then Slight Chance Rain Showers
|
80°F |
5 to 10 mph
SSW
|
|
Saturday Night
Aug 29
|
Mostly Cloudy then Slight Chance Rain Showers
|
67°F |
10 mph
S
|
|
Sunday
Aug 30
|
Slight Chance Rain Showers then Partly Sunny
|
86°F |
10 to 15 mph
SSW
|
|
Sunday Night
Aug 30
|
Partly Cloudy
|
69°F |
10 mph
S
|
|
Monday
Aug 31
|
Partly Sunny
|
90°F |
10 mph
SSW
|
|
Monday Night
Aug 31
|
Partly Cloudy
|
72°F |
5 to 10 mph
SSW
|
|
Tuesday
Sep 1
|
Mostly Sunny
|
90°F |
5 mph
SSW
|
|
Tuesday Night
Sep 1
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
72°F |
5 mph
SSW
|
|
Wednesday
Sep 2
|
Slight Chance Showers And Thunderstorms then Sunny
|
90°F |
5 to 10 mph
SW
|
|
Wednesday Night
Sep 2
|
Chance Showers And Thunderstorms
|
70°F |
5 mph
WNW
|
|
Thursday
Sep 3
|
Chance Showers And Thunderstorms
|
88°F |
5 mph
SE
|
|
Thursday Night
Sep 3
|
Slight Chance Showers And Thunderstorms
|
68°F |
5 mph
ESE
|
|
Friday
Sep 4
|
Chance Showers And Thunderstorms then Partly Sunny
|
86°F |
5 mph
SSE
|
Major City Forecasts
Live forecast snapshots for major cities across Lee County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Lee County.
Largest mapped city population in this region: 14,927.
