Madison County, IL Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Madison County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 84. Northwest wind 2 to 6 mph.
County Weather Overview
This county weather page brings together forecast coverage for Madison County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 17 of 17 mapped cities in Madison County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 11 to Oct 16, 2026
- Latest sync
- Oct 10, 2026 2:40 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Madison County
Columbus Day looks like the warmest upcoming period in Madison County at 94 degrees F.
Thursday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Friday at about 10 to 16 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 10, 2026 2:40 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 62. South wind around 3 mph.
Sunny, with a high near 94.
Mostly clear, with a low around 70.
Sunny, with a high near 91.
A chance of showers and thunderstorms after 1am. Mostly clear, with a low around 63. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Oct 11
|
Mostly Sunny
|
84°F |
2 to 6 mph
NW
|
|
Sunday Night
Oct 11
|
Mostly Clear
|
62°F |
3 mph
S
|
|
Columbus Day
Oct 12
|
Sunny
|
94°F |
3 to 12 mph
SW
|
|
Monday Night
Oct 12
|
Mostly Clear
|
70°F |
7 to 10 mph
SW
|
|
Tuesday
Oct 13
|
Sunny
|
91°F |
10 mph
W
|
|
Tuesday Night
Oct 13
|
Mostly Clear then Chance Showers And Thunderstorms
|
63°F |
8 mph
NE
|
|
Wednesday
Oct 14
|
Chance Showers And Thunderstorms
|
81°F |
9 mph
E
|
|
Wednesday Night
Oct 14
|
Chance Showers And Thunderstorms
|
62°F |
10 mph
SE
|
|
Thursday
Oct 15
|
Chance Showers And Thunderstorms
|
80°F |
12 mph
S
|
|
Thursday Night
Oct 15
|
Chance Showers And Thunderstorms
|
57°F |
7 to 10 mph
W
|
|
Friday
Oct 16
|
Chance Showers And Thunderstorms
|
71°F |
10 to 16 mph
NW
|
Major City Forecasts
Live forecast snapshots for major cities across Madison County.
Coverage
Forecast coverage currently spans 17 of 17 mapped cities in Madison County.
Largest mapped city population in this region: 29,251.
