Harman US

Creve Coeur, IL Weather & Growing Conditions

This Afternoon
83°F
Mostly Cloudy
Mostly cloudy, with a high near 83. South wind around 8 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 83°F Mostly Cloudy 8 mph S 13%
Tonight 69°F Mostly Cloudy then Chance Showers And Thunderstorms 3 to 7 mph SSE 31%
Sunday 76°F Chance Showers And Thunderstorms 6 to 12 mph NE 47%
Sunday Night 59°F Chance Showers And Thunderstorms 14 mph NE 47%
Monday 66°F Rain Showers Likely 10 to 14 mph ENE 69%
Monday Night 55°F Chance Rain Showers 14 mph ENE 54%
Tuesday 65°F Chance Rain Showers 13 mph NE 49%
Tuesday Night 53°F Mostly Cloudy 6 to 12 mph NNE 11%
Wednesday 67°F Partly Sunny 9 mph NNE 2%
Wednesday Night 54°F Partly Cloudy 3 to 8 mph NNE 2%
Thursday 70°F Partly Sunny 6 mph NNE 2%
Thursday Night 57°F Mostly Cloudy 5 mph NE 4%
Friday 73°F Partly Sunny 6 mph NE 4%
Friday Night 56°F Partly Cloudy 5 mph NE 3%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Creve Coeur, IL

Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
6a

Explore more for Creve Coeur, IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Peoria Gtr Peoria Ap, Il (4.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.