McLean County, IL Weather Forecast
County weather hub
Mostly Cloudy
Compare major city weather across McLean County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly cloudy, with a low around 59. Southeast wind around 6 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
- May 29 to Jun 5, 2026
- Latest sync
- May 29, 2026 8:32 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in McLean County
Friday looks like the warmest upcoming period in McLean County at 86 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Friday at about 10 to 15 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- May 29, 2026 8:32 PM CDT
- Coverage
- 8 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 sunny, with a high near 83. East wind 6 to 14 mph, with gusts as high as 20 mph.
Mostly cloudy, with a low around 56. East wind around 14 mph, with gusts as high as 22 mph.
Partly sunny, with a high near 79. East southeast wind 8 to 12 mph, with gusts as high as 18 mph.
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. East wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 83. Northeast wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 56. Northeast wind 8 to 12 mph, with gusts as high as 16 mph.
Sunny, with a high near 82.
Mostly clear, with a low around 55.
Sunny, with a high near 83.
Mostly clear, with a low around 59.
Mostly sunny, with a high near 85.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 63.
A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
May 29
|
Mostly Cloudy
|
59°F |
6 mph
SE
|
|
Saturday
May 30
|
Partly Sunny
|
83°F |
6 to 14 mph
E
|
|
Saturday Night
May 30
|
Mostly Cloudy
|
56°F |
14 mph
E
|
|
Sunday
May 31
|
Partly Sunny
|
79°F |
8 to 12 mph
ESE
|
|
Sunday Night
May 31
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
58°F |
7 mph
E
|
|
Monday
Jun 1
|
Chance Showers And Thunderstorms then Mostly Sunny
|
83°F |
7 mph
NE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
56°F |
8 to 12 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
82°F |
8 to 12 mph
ENE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
55°F |
6 to 10 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
83°F |
8 mph
SE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
59°F |
7 mph
S
|
|
Thursday
Jun 4
|
Mostly Sunny
|
85°F |
8 to 14 mph
SSW
|
|
Thursday Night
Jun 4
|
Partly Cloudy then Slight Chance Rain Showers
|
63°F |
9 to 13 mph
SSW
|
|
Friday
Jun 5
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
86°F |
10 to 15 mph
SW
|
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.
