Clarendon Hills, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clarendon Hills, a village in Dupage County, Illinois.
This Afternoon
71°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy, with a high near 71. 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 Clarendon Hills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Showers And Thunderstorms Likely | 5 mph E | 70% |
| Tonight | 65°F | Showers And Thunderstorms | 5 mph WSW | 100% |
| Sunday | 67°F | Showers And Thunderstorms | 10 to 15 mph NNE | 86% |
| Sunday Night | 58°F | Chance Rain Showers | 15 mph ENE | 29% |
| Monday | 64°F | Chance Rain Showers | 15 mph ENE | 39% |
| Monday Night | 55°F | Chance Rain Showers | 10 to 15 mph ENE | 27% |
| Tuesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 27% |
| Tuesday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 18% |
| Wednesday | 64°F | Mostly Cloudy | 10 mph NE | 13% |
| Wednesday Night | 55°F | Mostly Cloudy | 5 to 10 mph NE | 6% |
| Thursday | 67°F | Partly Sunny | 5 to 10 mph NE | 3% |
| Thursday Night | 56°F | Mostly Cloudy | 5 to 10 mph NE | 10% |
| Friday | 71°F | Partly Sunny | 5 to 10 mph NE | 10% |
| Friday Night | 57°F | Mostly Cloudy | 0 to 10 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Clarendon Hills (41.798, -87.957). Updated through the day.
Growing snapshot for Clarendon Hills
Last spring frost
Apr 28
First fall frost
Oct 16
Growing season
169 days
Hardiness zone
6a
More local growing data for Clarendon Hills: nearby ZIP 60514 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Lisle-Morton Arboretum, Il (5.8 mi from Clarendon Hills). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.