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Deerfield, IL Weather & Growing Conditions

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

This Afternoon
67°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy, with a high near 67. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Deerfield

WhenTempForecastWindPrecip
This Afternoon 67°F Showers And Thunderstorms Likely 5 mph E 72%
Tonight 63°F Showers And Thunderstorms 5 to 10 mph E 100%
Sunday 66°F Showers And Thunderstorms 10 to 20 mph NNE 87%
Sunday Night 56°F Slight Chance Rain Showers then Mostly Cloudy 15 mph ENE 18%
Monday 65°F Chance Rain Showers 15 mph ENE 32%
Monday Night 53°F Slight Chance Rain Showers 10 to 15 mph ENE 18%
Tuesday 63°F Slight Chance Rain Showers 15 mph NE 20%
Tuesday Night 54°F Slight Chance Rain Showers 10 to 15 mph NE 15%
Wednesday 64°F Slight Chance Rain Showers 10 mph NE 17%
Wednesday Night 54°F Mostly Cloudy 5 to 10 mph NE 8%
Thursday 66°F Partly Sunny 5 to 10 mph NE 3%
Thursday Night 55°F Mostly Cloudy 0 to 5 mph NE 13%
Friday 69°F Partly Sunny 0 to 5 mph NE 13%
Friday Night 55°F Partly Cloudy 0 to 5 mph NE 3%

Forecast source: National Weather Service (api.weather.gov) for Deerfield (42.166, -87.852). Updated through the day.

Growing snapshot for Deerfield

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

More local growing data for Deerfield: nearby ZIP 60015 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Chicago Palwaukee Ap, Il (3.9 mi from Deerfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.