South Chicago Heights, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for South Chicago Heights, IL in one place.
Sunny, with a high near 72. North northeast wind 0 to 5 mph.
Local Weather Overview
This forecast page for South Chicago Heights, 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 20, 2026 9:45 PM CDT.
The active forecast window currently covers Oct 22 to Oct 27, 2026 for South Chicago Heights, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 22 to Oct 27, 2026
- Latest sync
- Oct 20, 2026 9:45 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in South Chicago Heights
Sunday looks like the warmest upcoming period in South Chicago Heights at 74 degrees F.
Thursday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Saturday at about 5 to 10 mph SSE.
The forecast from Oct 22 through Oct 27 stays mostly dry.
Forecast Details
- Last updated
- Oct 20, 2026 9:45 PM CDT
- Coverage
- 6 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
Mostly clear, with a low around 47. East wind 0 to 5 mph.
Sunny, with a high near 70.
Mostly clear, with a low around 47.
Mostly sunny, with a high near 72.
Partly cloudy, with a low around 52.
Mostly sunny, with a high near 74.
Mostly cloudy, with a low around 52.
Partly sunny, with a high near 67.
Mostly cloudy, with a low around 48.
Mostly sunny, with a high near 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 22
|
Sunny
|
72°F |
0 to 5 mph
NNE
|
|
Thursday Night
Oct 22
|
Mostly Clear
|
47°F |
0 to 5 mph
E
|
|
Friday
Oct 23
|
Sunny
|
70°F |
0 to 5 mph
SE
|
|
Friday Night
Oct 23
|
Mostly Clear
|
47°F |
5 mph
SE
|
|
Saturday
Oct 24
|
Mostly Sunny
|
72°F |
5 to 10 mph
SSE
|
|
Saturday Night
Oct 24
|
Partly Cloudy
|
52°F |
5 mph
S
|
|
Sunday
Oct 25
|
Mostly Sunny
|
74°F |
5 mph
SSW
|
|
Sunday Night
Oct 25
|
Mostly Cloudy
|
52°F |
5 mph
SW
|
|
Monday
Oct 26
|
Partly Sunny
|
67°F |
5 mph
WSW
|
|
Monday Night
Oct 26
|
Mostly Cloudy
|
48°F |
5 mph
N
|
|
Tuesday
Oct 27
|
Mostly Sunny
|
60°F |
5 to 10 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Chicago Heights.