Cooper, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Cooper, IL in one place.
Mostly cloudy, with a high near 81. East wind 6 to 10 mph, with gusts as high as 17 mph.
Local Weather Overview
This forecast page for Cooper, 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: May 28, 2026 6:51 PM CDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Cooper, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 28, 2026 6:51 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Cooper
Monday looks like the warmest upcoming period in Cooper at 84 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Saturday at about 6 to 10 mph E.
The forecast from May 30 through Jun 3 stays mostly dry.
Forecast Details
- Last updated
- May 28, 2026 6:51 PM CDT
- Coverage
- 5 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
Mostly cloudy, with a low around 58. East wind around 10 mph, with gusts as high as 20 mph.
Partly sunny, with a high near 80. East southeast wind 5 to 8 mph, with gusts as high as 17 mph.
Partly cloudy, with a low around 57.
Mostly sunny, with a high near 84.
Mostly clear, with a low around 57.
Sunny, with a high near 83.
Mostly clear, with a low around 55.
Sunny, with a high near 82.
Mostly clear, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Mostly Cloudy
|
81°F |
6 to 10 mph
E
|
|
Saturday Night
May 30
|
Mostly Cloudy
|
58°F |
10 mph
E
|
|
Sunday
May 31
|
Partly Sunny
|
80°F |
5 to 8 mph
ESE
|
|
Sunday Night
May 31
|
Partly Cloudy
|
57°F |
5 mph
E
|
|
Monday
Jun 1
|
Mostly Sunny
|
84°F |
2 to 6 mph
ENE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
57°F |
6 mph
ENE
|
|
Tuesday
Jun 2
|
Sunny
|
83°F |
8 mph
E
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
55°F |
7 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
82°F |
6 to 9 mph
SE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
56°F |
3 to 7 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cooper.