Cooper, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Cooper, IL in one place.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 76.
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: Apr 10, 2026 11:40 AM CDT.
The active forecast window currently covers Apr 15 to Apr 16, 2026 for Cooper, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 11:40 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Cooper
Thursday looks like the warmest upcoming period in Cooper at 78 degrees F.
Thursday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Wednesday at about 16 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 11:40 AM CDT
- Coverage
- 2 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 chance of showers and thunderstorms. Partly cloudy, with a low around 55.
A chance of rain showers. Mostly sunny, with a high near 78.
A chance of rain showers. Partly cloudy, with a low around 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 15
|
Chance Showers And Thunderstorms
|
76°F |
16 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
55°F |
8 to 13 mph
SW
|
|
Thursday
Apr 16
|
Chance Rain Showers
|
78°F |
8 to 13 mph
S
|
|
Thursday Night
Apr 16
|
Chance Rain Showers
|
54°F |
10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cooper.