Macon County, IL Weather Forecast
County weather hub
Clear
Compare major city weather across Macon County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Clear, with a low around 45. Southwest wind around 3 mph.
County Weather Overview
This county weather page brings together forecast coverage for Macon County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 9 of 9 mapped cities in Macon County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 11 to May 17, 2026
- Latest sync
- May 11, 2026 7:11 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Macon County
Sunday looks like the warmest upcoming period in Macon County at 83 degrees F.
Overnight is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Wednesday at about 10 to 22 mph NW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- May 11, 2026 7:11 AM 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
Sunny, with a high near 71. West wind 5 to 12 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 46. East northeast wind 5 to 9 mph, with gusts as high as 17 mph.
Sunny, with a high near 79. South wind 9 to 21 mph, with gusts as high as 35 mph.
Showers and thunderstorms likely between 7pm and 1am. Partly cloudy, with a low around 54. West wind 8 to 17 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunny, with a high near 71. Northwest wind 10 to 22 mph, with gusts as high as 30 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 45. North northeast wind 3 to 17 mph, with gusts as high as 24 mph.
Sunny, with a high near 70.
A slight chance of rain showers after 1am. Mostly clear, with a low around 52.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 75.
A chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 61.
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
A 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 63.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 11
|
Clear
|
45°F |
3 mph
SW
|
|
Monday
May 11
|
Sunny
|
71°F |
5 to 12 mph
W
|
|
Monday Night
May 11
|
Mostly Clear
|
46°F |
5 to 9 mph
ENE
|
|
Tuesday
May 12
|
Sunny
|
79°F |
9 to 21 mph
S
|
|
Tuesday Night
May 12
|
Showers And Thunderstorms Likely
|
54°F |
8 to 17 mph
W
|
|
Wednesday
May 13
|
Sunny
|
71°F |
10 to 22 mph
NW
|
|
Wednesday Night
May 13
|
Mostly Clear
|
45°F |
3 to 17 mph
NNE
|
|
Thursday
May 14
|
Sunny
|
70°F |
5 mph
ENE
|
|
Thursday Night
May 14
|
Mostly Clear then Slight Chance Rain Showers
|
52°F |
5 to 14 mph
SSE
|
|
Friday
May 15
|
Chance Showers And Thunderstorms
|
75°F |
15 to 21 mph
S
|
|
Friday Night
May 15
|
Chance Showers And Thunderstorms
|
61°F |
10 to 17 mph
SSW
|
|
Saturday
May 16
|
Chance Showers And Thunderstorms
|
82°F |
14 mph
SW
|
|
Saturday Night
May 16
|
Chance Showers And Thunderstorms
|
63°F |
10 mph
S
|
|
Sunday
May 17
|
Slight Chance Showers And Thunderstorms
|
83°F |
10 to 17 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Macon County.
Coverage
Forecast coverage currently spans 9 of 9 mapped cities in Macon County.
Largest mapped city population in this region: 70,007.
