Chatham, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Chatham, IL in one place.
Showers and thunderstorms. Mostly cloudy, with a high near 64. Northwest wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
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: Apr 9, 2026 2:27 PM CDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Chatham, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 2:27 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Chatham
Tuesday looks like the warmest upcoming period in Chatham at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Sunday at about 14 to 23 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 2:27 PM CDT
- Coverage
- 6 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
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 44. Northeast wind around 9 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers. Mostly cloudy, with a high near 66. East southeast wind around 12 mph, with gusts as high as 17 mph. Chance of precipitation is 30%.
A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 57. South southeast wind 10 to 14 mph, with gusts as high as 22 mph.
A chance of rain showers after 1pm. Mostly cloudy, with a high near 77. South wind 14 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
A chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 63.
Showers and thunderstorms likely. Partly sunny, with a high near 78.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Showers And Thunderstorms
|
64°F |
13 mph
NW
|
|
Friday Night
Apr 10
|
Mostly Cloudy then Slight Chance Rain Showers
|
44°F |
9 mph
NE
|
|
Saturday
Apr 11
|
Chance Rain Showers
|
66°F |
12 mph
ESE
|
|
Saturday Night
Apr 11
|
Slight Chance Rain Showers then Mostly Cloudy
|
57°F |
10 to 14 mph
SSE
|
|
Sunday
Apr 12
|
Mostly Cloudy then Chance Rain Showers
|
77°F |
14 to 23 mph
S
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely
|
61°F |
20 mph
SSW
|
|
Monday
Apr 13
|
Showers And Thunderstorms Likely
|
82°F |
16 to 20 mph
SSW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
65°F |
17 mph
SSW
|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
83°F |
15 to 21 mph
SSW
|
|
Tuesday Night
Apr 14
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
63°F |
17 mph
SSW
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
78°F |
16 to 21 mph
SSW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
54°F |
10 to 16 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chatham.