Lake Catherine, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Catherine, IL in one place.
Mostly sunny, with a high near 80. South wind 5 to 10 mph.
Local Weather Overview
This forecast page for Lake Catherine, 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: Jul 24, 2026 2:02 PM CDT.
The active forecast window currently covers Jul 24 to Jul 30, 2026 for Lake Catherine, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 30, 2026
- Latest sync
- Jul 24, 2026 2:02 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake Catherine
Monday looks like the warmest upcoming period in Lake Catherine at 92 degrees F.
Tonight is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Monday at about 5 to 15 mph WSW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 24, 2026 2:02 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 59. South southwest wind 0 to 10 mph.
Partly sunny, with a high near 82. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Partly cloudy, with a low around 71. Southwest wind 5 to 10 mph.
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. West southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 63.
Sunny, with a high near 86.
A slight chance of showers and thunderstorms between 7pm and 1am. Mostly clear, with a low around 63.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 88.
A chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 24
|
Mostly Sunny
|
80°F |
5 to 10 mph
S
|
|
Tonight
Jul 24
|
Mostly Clear
|
59°F |
0 to 10 mph
SSW
|
|
Saturday
Jul 25
|
Partly Sunny
|
82°F |
5 to 10 mph
SW
|
|
Saturday Night
Jul 25
|
Partly Cloudy
|
71°F |
5 to 10 mph
SW
|
|
Sunday
Jul 26
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
5 to 10 mph
WSW
|
|
Sunday Night
Jul 26
|
Chance Showers And Thunderstorms
|
72°F |
5 to 10 mph
SW
|
|
Monday
Jul 27
|
Chance Showers And Thunderstorms
|
92°F |
5 to 15 mph
WSW
|
|
Monday Night
Jul 27
|
Slight Chance Showers And Thunderstorms
|
68°F |
5 to 15 mph
WNW
|
|
Tuesday
Jul 28
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
5 to 10 mph
N
|
|
Tuesday Night
Jul 28
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
63°F |
0 to 10 mph
NNE
|
|
Wednesday
Jul 29
|
Sunny
|
86°F |
0 to 5 mph
NE
|
|
Wednesday Night
Jul 29
|
Slight Chance Showers And Thunderstorms
|
63°F |
0 to 5 mph
NNE
|
|
Thursday
Jul 30
|
Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
0 to 5 mph
WSW
|
|
Thursday Night
Jul 30
|
Chance Showers And Thunderstorms
|
65°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Catherine.