Harman US

Creve Coeur, IL Weather & Growing Conditions

Overnight
69°F
Mostly Cloudy
Mostly cloudy, with a low around 69. South southeast wind around 7 mph. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 69°F Mostly Cloudy 7 mph SSE 8%
Saturday 86°F Chance Showers And Thunderstorms 8 mph SE 30%
Saturday Night 69°F Showers And Thunderstorms Likely 2 to 6 mph S 61%
Sunday 75°F Showers And Thunderstorms Likely 3 to 13 mph N 70%
Sunday Night 59°F Showers And Thunderstorms Likely then Chance Showers And Thunderstorms 15 mph NE 59%
Monday 66°F Showers And Thunderstorms Likely 15 mph ENE 64%
Monday Night 54°F Chance Rain Showers 14 mph NE 46%
Tuesday 65°F Slight Chance Rain Showers 14 mph NE 20%
Tuesday Night 52°F Partly Cloudy 7 to 13 mph NNE 12%
Wednesday 68°F Mostly Sunny 10 mph NNE 4%
Wednesday Night 54°F Partly Cloudy 3 to 8 mph NNE 1%
Thursday 70°F Mostly Sunny 7 mph NNE 2%
Thursday Night 55°F Partly Cloudy 6 mph NE 2%
Friday 73°F Mostly Sunny 7 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.