Clear Lake, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy then Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Clear Lake, IL in one place.
A slight chance of rain showers after 1pm. Mostly cloudy, with a high near 68. East southeast wind around 10 mph, with gusts as high as 17 mph. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Clear Lake, 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 5:43 AM CDT.
The active forecast window currently covers Apr 11 to Apr 16, 2026 for Clear Lake, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 11 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 5:43 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Clear Lake
Tuesday looks like the warmest upcoming period in Clear Lake at 84 degrees F.
Saturday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Sunday at about 12 to 21 mph S.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 5:43 AM 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 before 7pm. Mostly cloudy, with a low around 58. South southeast wind 9 to 13 mph, with gusts as high as 22 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. South wind 12 to 21 mph, with gusts as high as 35 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. South southwest wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 84.
Showers and thunderstorms likely. Mostly cloudy, with a low around 64.
Showers and thunderstorms likely. Partly sunny, with a high near 79.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
A chance of rain showers. Mostly sunny, with a high near 79.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Mostly Cloudy then Slight Chance Rain Showers
|
68°F |
10 mph
ESE
|
|
Saturday Night
Apr 11
|
Slight Chance Rain Showers then Mostly Cloudy
|
58°F |
9 to 13 mph
SSE
|
|
Sunday
Apr 12
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
80°F |
12 to 21 mph
S
|
|
Sunday Night
Apr 12
|
Chance Showers And Thunderstorms
|
64°F |
15 to 18 mph
SSW
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
83°F |
16 mph
SSW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
67°F |
15 mph
SSW
|
|
Tuesday
Apr 14
|
Slight Chance Showers And Thunderstorms
|
84°F |
13 to 17 mph
SSW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms Likely
|
64°F |
16 mph
SSW
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
79°F |
15 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
58°F |
8 to 12 mph
SW
|
|
Thursday
Apr 16
|
Chance Rain Showers
|
79°F |
8 to 12 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Clear Lake.