Cary, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cary, a village in Mchenry County, Illinois.
This Afternoon
70°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a high near 70. East wind 10 to 15 mph. Chance of precipitation is 40%.
7-day forecast for Cary
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Chance Rain Showers | 10 to 15 mph E | 38% |
| Tonight | 61°F | Slight Chance Rain Showers then Showers And Thunderstorms Likely | 10 mph E | 64% |
| Saturday | 75°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph SE | 94% |
| Saturday Night | 62°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NE | 80% |
| Sunday | 67°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 74% |
| Sunday Night | 54°F | Chance Rain Showers | 15 mph ENE | 48% |
| Monday | 63°F | Chance Rain Showers | 15 mph ENE | 41% |
| Monday Night | 50°F | Chance Rain Showers | 5 to 15 mph ENE | 40% |
| Tuesday | 61°F | Slight Chance Rain Showers | 10 to 15 mph NE | 20% |
| Tuesday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 15% |
| Wednesday | 64°F | Partly Sunny | 5 to 10 mph NE | 10% |
| Wednesday Night | 50°F | Mostly Cloudy | 0 to 5 mph NNE | 4% |
| Thursday | 67°F | Partly Sunny | 0 to 5 mph NNE | 5% |
| Thursday Night | 51°F | Mostly Cloudy | 0 to 5 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Cary (42.212, -88.250). Updated through the day.
Growing snapshot for Cary
Last spring frost
May 1
First fall frost
Oct 11
Growing season
162 days
Hardiness zone
5b
More local growing data for Cary: nearby ZIP 60013 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
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Chemung
Coral
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Greenwood
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Harvard
Hebron
Huntley
Johnsburg
Lake Barrington
Lake in the Hills
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Lakewood
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Marengo
McCullom Lake
McHenry
Oakwood Hills
Prairie Grove
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Ridgefield
Riley
Ringwood
Solon Mills
Spring Grove
Climate data from the nearest NOAA station, Mc Henry -Wg Stratton L&D, Il (6 mi from Cary). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.