National Weather Service Forecast for: Buffalo Grove IL
Issued by: National Weather Service Chicago, IL
Updated: 1:21 pm CDT Oct 6, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 72. South southwest wind around 15 mph, with gusts as high as 25 mph.
Sunny
 Tonight

Tonight: Mostly clear, with a low around 55. West southwest wind around 10 mph, with gusts as high as 20 mph.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 76. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunny
 Wednesday
Night
Wednesday Night: Increasing clouds, with a low around 52. West wind around 5 mph, with gusts as high as 10 mph.
Increasing
Clouds
 Thursday

Thursday: Mostly sunny, with a high near 68. Northwest wind 5 to 10 mph.
Mostly Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 48.
Mostly Clear
 Friday

Friday: Mostly sunny, with a high near 69.
Mostly Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 57.
Partly Cloudy
 Saturday

Saturday: Sunny, with a high near 79.
Sunny
Hi 72 °F Lo 55 °F Hi 76 °F Lo 52 °F Hi 68 °F Lo 48 °F Hi 69 °F Lo 57 °F Hi 79 °F

 

This Afternoon
 
 Sunny, with a high near 72. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
 
 Mostly clear, with a low around 55. West southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday
 
 Sunny, with a high near 76. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
 
 Increasing clouds, with a low around 52. West wind around 5 mph, with gusts as high as 10 mph.
Thursday
 
 Mostly sunny, with a high near 68. Northwest wind 5 to 10 mph.
Thursday Night
 
 Mostly clear, with a low around 48.
Friday
 
 Mostly sunny, with a high near 69.
Friday Night
 
 Partly cloudy, with a low around 57.
Saturday
 
 Sunny, with a high near 79.
Saturday Night
 
 Partly cloudy, with a low around 60.
Sunday
 
 Mostly sunny, with a high near 76.
Sunday Night
 
 Partly cloudy, with a low around 56.
Columbus Day
 
 Mostly sunny, with a high near 73.

 

Forecast from NOAA-NWS for Buffalo Grove IL.