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Buffalo Grove, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Buffalo Grove, a village in Lake County, Illinois.

This Afternoon
69°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy, with a high near 69. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Buffalo Grove

WhenTempForecastWindPrecip
This Afternoon 69°F Showers And Thunderstorms Likely 5 mph E 70%
Tonight 63°F Showers And Thunderstorms 5 to 10 mph ENE 100%
Sunday 66°F Showers And Thunderstorms 10 to 15 mph NE 87%
Sunday Night 56°F Slight Chance Rain Showers then Mostly Cloudy 15 mph NE 19%
Monday 64°F Chance Rain Showers 15 mph ENE 33%
Monday Night 53°F Slight Chance Rain Showers 10 to 15 mph ENE 21%
Tuesday 63°F Slight Chance Rain Showers 10 to 15 mph NE 21%
Tuesday Night 53°F Mostly Cloudy then Slight Chance Rain Showers 5 to 15 mph NE 15%
Wednesday 64°F Slight Chance Rain Showers 5 to 10 mph NE 17%
Wednesday Night 53°F Mostly Cloudy 5 to 10 mph NE 7%
Thursday 66°F Partly Sunny 5 mph NE 3%
Thursday Night 54°F Mostly Cloudy 0 to 5 mph NE 13%
Friday 70°F Partly Sunny 0 to 5 mph NE 12%
Friday Night 55°F Partly Cloudy 0 to 5 mph NE 3%

Forecast source: National Weather Service (api.weather.gov) for Buffalo Grove (42.166, -87.962). Updated through the day.

Growing snapshot for Buffalo Grove

Last spring frost
Apr 19
First fall frost
Oct 26
Growing season
190 days
Hardiness zone
6a

More local growing data for Buffalo Grove: nearby ZIP 60089 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Chicago Palwaukee Ap, Il (4.4 mi from Buffalo Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.