Chatham, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Chatham, IL in one place.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 87.
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: Jun 5, 2026 2:45 AM CDT.
The active forecast window currently covers Jun 9 to Jun 11, 2026 for Chatham, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 11, 2026
- Latest sync
- Jun 5, 2026 2:45 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Chatham
Thursday looks like the warmest upcoming period in Chatham at 93 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 10 mph S.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 5, 2026 2:45 AM CDT
- Coverage
- 3 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
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
A chance of showers and thunderstorms. Partly cloudy, with a low around 72.
A slight chance of rain showers before 7am. Partly sunny, with a high near 93.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Chance Showers And Thunderstorms
|
87°F |
5 to 10 mph
S
|
|
Tuesday Night
Jun 9
|
Chance Showers And Thunderstorms
|
69°F |
5 to 10 mph
S
|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms
|
90°F |
5 to 10 mph
S
|
|
Wednesday Night
Jun 10
|
Chance Showers And Thunderstorms
|
72°F |
5 to 10 mph
SSE
|
|
Thursday
Jun 11
|
Slight Chance Rain Showers then Partly Sunny
|
93°F |
5 to 10 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chatham.