Chatham, IL Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Chatham, IL in one place.
A slight chance of rain showers after 10am. Mostly cloudy, with a high near 48. North northwest wind 12 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Chatham, 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: Nov 11, 2026 10:21 AM CST.
The active forecast window currently covers Nov 12 to Nov 17, 2026 for Chatham, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 12 to Nov 17, 2026
- Latest sync
- Nov 11, 2026 10:21 AM CST
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Chatham
Tuesday looks like the warmest upcoming period in Chatham at 52 degrees F.
Friday Night is the coolest period ahead with temperatures near 23 degrees F.
The strongest winds are forecast for Thursday at about 12 to 17 mph NNW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Nov 11, 2026 10:21 AM CST
- 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
Partly cloudy, with a low around 29. North northwest wind 7 to 14 mph, with gusts as high as 20 mph.
Sunny. High near 44, with temperatures falling to around 39 in the afternoon. Northwest wind 7 to 13 mph, with gusts as high as 17 mph.
Mostly clear, with a low around 23. North northwest wind 1 to 5 mph.
Sunny, with a high near 46. North wind around 2 mph.
Mostly clear, with a low around 24.
Sunny, with a high near 48.
Partly cloudy, with a low around 26.
Sunny, with a high near 49.
Mostly clear, with a low around 27.
Sunny, with a high near 52.
Mostly clear, with a low around 29.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Nov 12
|
Slight Chance Rain Showers
|
48°F |
12 to 17 mph
NNW
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
29°F |
7 to 14 mph
NNW
|
|
Friday
Nov 13
|
Sunny
|
44°F |
7 to 13 mph
NW
|
|
Friday Night
Nov 13
|
Mostly Clear
|
23°F |
1 to 5 mph
NNW
|
|
Saturday
Nov 14
|
Sunny
|
46°F |
2 mph
N
|
|
Saturday Night
Nov 14
|
Mostly Clear
|
24°F |
1 mph
NNE
|
|
Sunday
Nov 15
|
Sunny
|
48°F |
2 mph
E
|
|
Sunday Night
Nov 15
|
Partly Cloudy
|
26°F |
2 mph
E
|
|
Monday
Nov 16
|
Sunny
|
49°F |
3 mph
E
|
|
Monday Night
Nov 16
|
Mostly Clear
|
27°F |
2 mph
E
|
|
Tuesday
Nov 17
|
Sunny
|
52°F |
1 to 5 mph
SE
|
|
Tuesday Night
Nov 17
|
Mostly Clear
|
29°F |
3 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chatham.