Bannockburn, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Bannockburn, IL in one place.
Mostly sunny, with a high near 50.
Local Weather Overview
This forecast page for Bannockburn, 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 16, 2026 10:50 AM CDT.
The active forecast window currently covers Apr 19 to Apr 22, 2026 for Bannockburn, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 19 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 10:50 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Bannockburn
Tuesday looks like the warmest upcoming period in Bannockburn at 72 degrees F.
Sunday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Sunday at about 10 to 15 mph WNW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 10:50 AM CDT
- Coverage
- 4 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Areas of frost after 5am. Partly cloudy, with a low around 34.
Areas of frost before 7am. Sunny, with a high near 57.
Partly cloudy, with a low around 46.
Mostly sunny, with a high near 72.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 49.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 67.
A chance of rain showers after 7pm. Partly cloudy, with a low around 46.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Mostly Sunny
|
50°F |
10 to 15 mph
WNW
|
|
Sunday Night
Apr 19
|
Partly Cloudy then Areas Of Frost
|
34°F |
5 to 10 mph
NW
|
|
Monday
Apr 20
|
Areas Of Frost then Sunny
|
57°F |
5 to 10 mph
ESE
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
46°F |
10 to 15 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
72°F |
15 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy then Slight Chance Rain Showers
|
49°F |
10 to 15 mph
WSW
|
|
Wednesday
Apr 22
|
Slight Chance Rain Showers then Mostly Sunny
|
67°F |
10 mph
SSW
|
|
Wednesday Night
Apr 22
|
Chance Rain Showers
|
46°F |
10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Bannockburn.