South Chicago, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for South Chicago, IL in one place.
Sunny, with a high near 58. Southwest wind 5 to 10 mph.
Local Weather Overview
This forecast page for South Chicago, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 17, 2026 12:26 PM CDT.
The active forecast window currently covers Oct 17 to Oct 23, 2026 for South Chicago, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 17 to Oct 23, 2026
- Latest sync
- Oct 17, 2026 12:26 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in South Chicago
Friday looks like the warmest upcoming period in South Chicago at 74 degrees F.
Tonight is the coolest period ahead with temperatures near 39 degrees F.
The strongest winds are forecast for Sunday at about 10 to 15 mph SSW.
The forecast from Oct 17 through Oct 23 stays mostly dry.
Forecast Details
- Last updated
- Oct 17, 2026 12:26 PM 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
Clear, with a low around 39. Southwest wind 5 to 10 mph.
Sunny. High near 62, with temperatures falling to around 60 in the afternoon. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Clear, with a low around 44. South southwest wind 5 to 10 mph.
Sunny, with a high near 67. South wind 0 to 5 mph.
Mostly clear, with a low around 47.
Sunny, with a high near 68.
Mostly clear, with a low around 50.
Sunny, with a high near 71.
Mostly clear, with a low around 51.
Sunny, with a high near 73.
Mostly clear, with a low around 54.
Mostly sunny, with a high near 74.
Partly cloudy, with a low around 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 17
|
Sunny
|
58°F |
5 to 10 mph
SW
|
|
Tonight
Oct 17
|
Clear
|
39°F |
5 to 10 mph
SW
|
|
Sunday
Oct 18
|
Sunny
|
62°F |
10 to 15 mph
SSW
|
|
Sunday Night
Oct 18
|
Clear
|
44°F |
5 to 10 mph
SSW
|
|
Monday
Oct 19
|
Sunny
|
67°F |
0 to 5 mph
S
|
|
Monday Night
Oct 19
|
Mostly Clear
|
47°F |
0 mph
|
|
Tuesday
Oct 20
|
Sunny
|
68°F |
0 to 5 mph
ESE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
50°F |
0 to 5 mph
ESE
|
|
Wednesday
Oct 21
|
Sunny
|
71°F |
0 to 5 mph
SE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
51°F |
0 to 5 mph
SSE
|
|
Thursday
Oct 22
|
Sunny
|
73°F |
0 to 5 mph
SSE
|
|
Thursday Night
Oct 22
|
Mostly Clear
|
54°F |
0 to 5 mph
ESE
|
|
Friday
Oct 23
|
Mostly Sunny
|
74°F |
0 to 5 mph
ESE
|
|
Friday Night
Oct 23
|
Partly Cloudy
|
54°F |
5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Chicago.