McCullom Lake, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for McCullom Lake, IL in one place.
Sunny, with a high near 83. East northeast wind 0 to 5 mph.
Local Weather Overview
This forecast page for McCullom 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: Jul 17, 2026 3:22 PM CDT.
The active forecast window currently covers Jul 19 to Jul 23, 2026 for McCullom Lake, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 19 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 3:22 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in McCullom Lake
Monday looks like the warmest upcoming period in McCullom Lake at 87 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Monday at about 5 to 15 mph SSW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 3:22 PM CDT
- Coverage
- 5 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
Partly cloudy, with a low around 64.
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 87.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 69.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 84.
Mostly clear, with a low around 60.
Sunny, with a high near 79.
Mostly clear, with a low around 58.
Sunny, with a high near 80.
Partly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Jul 19
|
Sunny
|
83°F |
0 to 5 mph
ENE
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
64°F |
5 mph
SE
|
|
Monday
Jul 20
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
87°F |
5 to 15 mph
SSW
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
69°F |
10 to 15 mph
WSW
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms then Mostly Sunny
|
84°F |
10 to 15 mph
WNW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
60°F |
5 to 15 mph
NNW
|
|
Wednesday
Jul 22
|
Sunny
|
79°F |
5 to 10 mph
NNW
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
58°F |
0 to 10 mph
NNW
|
|
Thursday
Jul 23
|
Sunny
|
80°F |
0 to 5 mph
W
|
|
Thursday Night
Jul 23
|
Partly Cloudy
|
60°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around McCullom Lake.