McLean County, IL Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across McLean County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 83. South wind 5 to 10 mph.
County Weather Overview
This county weather page brings together forecast coverage for McLean County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in McLean County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 2:04 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in McLean County
Tuesday looks like the warmest upcoming period in McLean County at 93 degrees F.
Saturday Night is the coolest period ahead with temperatures near 68 degrees F.
The strongest winds are forecast for Sunday at about 14 to 17 mph S.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 28, 2026 2:04 AM CDT
- Coverage
- 6 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
Partly cloudy, with a low around 68. South southeast wind 8 to 13 mph, with gusts as high as 20 mph.
Mostly sunny, with a high near 89. South wind 14 to 17 mph, with gusts as high as 24 mph.
Mostly clear, with a low around 73. South southwest wind around 15 mph, with gusts as high as 24 mph.
Mostly sunny, with a high near 92.
Partly cloudy, with a low around 75.
Mostly sunny, with a high near 93.
Mostly clear, with a low around 73.
Sunny, with a high near 92.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 73.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 91.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
83°F |
5 to 10 mph
S
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
68°F |
8 to 13 mph
SSE
|
|
Sunday
Aug 30
|
Mostly Sunny
|
89°F |
14 to 17 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
73°F |
15 mph
SSW
|
|
Monday
Aug 31
|
Mostly Sunny
|
92°F |
12 to 15 mph
SSW
|
|
Monday Night
Aug 31
|
Partly Cloudy
|
75°F |
9 to 13 mph
SSW
|
|
Tuesday
Sep 1
|
Mostly Sunny
|
93°F |
12 mph
SW
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
73°F |
8 mph
SSW
|
|
Wednesday
Sep 2
|
Sunny
|
92°F |
10 mph
SW
|
|
Wednesday Night
Sep 2
|
Partly Cloudy then Slight Chance Rain Showers
|
73°F |
8 mph
SSW
|
|
Thursday
Sep 3
|
Slight Chance Showers And Thunderstorms
|
91°F |
9 mph
SSW
|
Major City Forecasts
Live forecast snapshots for major cities across McLean County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in McLean County.
Largest mapped city population in this region: 77,132.
