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Creve Coeur, Illinois Weather

Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →

Creve Coeur weather forecast — hour by hour, 7-day outlook, NOAA radar

Creve Coeur, IL
Sunday, July 5 at 11:41 AM
79
°
Mostly Clear
Feels like
88°
Humidity
80%
Wind
7 mph
Sunrise
12:33 AM
Sunset
3:32 PM
Creve Coeur, IL
Hour by hour · 24h
24-Hour ForecastCreve Coeur, IL: 24-hour forecast. Temperatures range from 66 to 85 degrees Fahrenheit.
L 66°H 85°
Creve Coeur, IL
7-day forecast
  1. Today
    Jul 5
    Overcast
    —
    —
    85°67°—
  2. Monday
    Jul 6
    Overcast
    —
    —
    84°66°-1°
  3. Tuesday
    Jul 7
    Overcast
    —
    —
    82°63°-2°
  4. Wednesday
    Jul 8
    Overcast
    —
    —
    84°65°+2°
  5. Thursday
    Jul 9
    Heavy Showers
    46%
    0.72″
    84°67°0°
  6. Friday
    Jul 10
    Thunderstorm
    46%
    0.01″
    83°70°-1°
  7. Saturday
    Jul 11
    Light Drizzle
    22%
    —
    82°69°-1°
Creve Coeur, IL
Next 24 hours · Mild now
HOT 90°62°76°90°6a12p6p12anow 76°high 85°low 66°
Creve Coeur, IL
Anemometer · 24h winds · from true
NESW
From · True
N
006° · backing 173°
Direction
N
006°
Sustained
7
mph
Gust
12
mph
Peak 24h
21
avg 4
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 4 · pk 21 @ 3:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 198SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 173° from the n.
Creve Coeur, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
990.6
+0.3 mb in 3h · steady · 29.25 inHg
Now
990.6
mb
3h
+0.3
mb
12h
+1.6
mb
24h
-0.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 988–991
9809859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW990.5988.2990.4
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Creve Coeur, IL
Air quality
26
AQI
Good
→0 in 6h▲Peak ~41 @ 11 PM

AQI 26 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.9 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
7.9μg/m³
PM 10Good
9μg/m³
NO₂Good
2μg/m³
OzoneModerate
83μg/m³
UV IndexHigh
5.6

What's driving it

Ozone × UV × Sky

Ozone at AQI 39 now. With UV 6.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 34 around 1 PM.

Present
AQI 39
UV peak
6.5 at 1 PM
Sky at peak
clear
Projected peak
AQI 34

PM × Wind × Precip

PM2.5 at 7.9 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.90
Wind
light
Recent rain
0h in last 6h
Pattern
background

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³300
Creve Coeur, IL
Sky cover · visibility · 24h
Cloud cover
46%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
37.3mi
UNLIMITED
47 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
16:41 UTC · Creve Coeur, IL · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
16:41 UTC · Creve Coeur, IL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Creve Coeur, IL
Satellite · infrared · animated
Creve Coeur, IL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Creve Coeur, IL
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:01 AM
Sunrise
12:33 AM
Daylight
14h 59m
Sunset
3:32 PM
Civil dusk
9:06 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Creve Coeur, IL
The moon
Waning Gibbous
71% illuminated
Moonrise
11:17 PM
Moonset
11:10 AM
In sign
♓︎ Pisces
Creve Coeur, IL
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Creve Coeur at a glance

  • Today vs. normal: 8°F above the seasonal normal for this latitude
  • Last frost: April 20 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 61610

16-Day Forecast — Creve Coeur

  1. Sun85°67°5%
  2. Mon84°66°3%
  3. Tue82°63°1%
  4. Wed84°65°4%
  5. Thu84°67°46%
  6. Fri83°70°46%
  7. Sat82°69°22%
  8. Sun86°69°12%
  9. Mon89°69°5%
  10. Tue89°75°3%
  11. Wed76°62°6%
  12. Thu77°54°32%
  13. Fri81°62°22%
  14. Sat85°67°30%
  15. Sun87°73°29%
  16. Mon89°72°23%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Creve Coeur

SPC includes Creve Coeur in the general thunderstorm area today — no severe risk, but storms are possible.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWNONENo severe risk
  • DAY 3NONENo severe risk

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

January 1–5: Frost quiets the live oaks.January 6–10: Still water thickens with ice.January 11–15: Springs begin to move beneath ice.January 16–20: Cardinal dawn calls grow bolder.January 21–25: Late January thaw pulses.January 26–31: Last freeze locks the land.February 1–5: February's lengthening light.February 6–10: Warming winds thaw the margin.February 11–15: Magnolia blooms break the gray.February 16–20: Mockingbirds resume the dawn chorus.February 21–25: Rain replaces the last snow.February 26–28: Mist clings to greening valleys.March 1–5: The green pulse awakens.March 6–10: Hibernators emerge to call.March 11–15: Dogwood and redbud ignite.March 16–20: Swallowtails emerge from winter silk.March 21–25: Light crowns the dogwood canopy.March 26–31: Redbud cascades over the thaw.April 1–5: Thunder announces the wet season.April 6–10: Barn swallows carve the warming sky.April 11–15: Magnolia blooms and falls in a breath.April 16–20: First rainbows arch over thunderheads.April 21–25: Reeds push through marsh water.April 26–30: Frost retreats; seedlings rise free.May 1–5: Warblers flood the canopy in waves.May 6–10: Tulip poplar lights the forest crown.May 11–15: Shad pulse upstream through rapids.May 16–20: Roses open on the Piedmont edge.May 21–25: Fireflies scout the humid dusk.May 26–31: Frog choruses rise from every wetland.June 1–5: Fireflies pulse through the magnolias.June 6–10: Kudzu climbs deeper into green.June 11–15: Sun climbs to its northern throne.June 16–20: Heat settles and the rain begins.June 21–25: The longest day turns toward shadow.June 26–30: Fireflies drift through Spanish moss.July 1–5: Cicadas claim the scorching afternoon.July 6–10: Thunderheads boil and break at dusk.July 11–15: Thunder builds each drowsy afternoon.July 16–20: Cicadas claim the long noon.July 21–25: Dog days drape the earth in haze.July 26–31: Katydids begin their rasping chorus.August 1–5: Dusk arrives one minute earlier each night.August 6–10: Meteorological summer's turning page.August 11–15: Cool winds gather at the margins.August 16–20: Dog-day cicadas rise.August 21–25: Heat breaks in creek beds.August 26–31: Monarchs gather strength.September 1–5: Harvests begin in earnest.September 6–10: Dew beads on resurrection fern.September 11–15: Raptors trail the thermals.September 16–20: Day and dark find balance.September 21–25: Thunder quiets the land.September 26–30: Insects retreat below.October 1–5: Swamp waters recede.October 6–10: Maples ignite the ridge.October 11–15: Asters crown the meadows.October 16–20: Crickets sing at dusk.October 21–25: Frost paints the garden.October 26–31: Light rains whisper down.November 1–5: Sweetgum Turns Crimson.November 6–10: Camellia Blooms Break Through.November 11–15: Earth Stiffens Underfoot.November 16–20: Bare Limbs Hold the Light.November 21–25: First Frost Grips the High Ground.November 26–30: North Wind Strips the Last Leaves.December 1–5: Darkness Falls Before Dinner.December 6–10: Winter Locks the Land.December 11–15: Wildlife Retreats to Shelter.December 16–20: Ice Edges Deepen Inward.December 21–25: The Sun Begins its Return.December 26–31: The Year Turns in Silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Cicadas claim the scorching afternoon

Dog-day cicadas emerge in waves, their rasp dominating every sunny hour; heat peaks above 90 degrees daily.

Day 186 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

Creve Coeur peaks at about 76°F in July and bottoms near 26°F in January; May brings the heaviest rain (4.7 inches) and February the least (2.0 inches).

MonthMean tempPrecipRainy days
January26°2.1″5
February30°2.0″5
March41°2.7″6
April53°4.0″8
May64°4.7″8
June73°3.7″7
July76°3.5″5
August75°3.3″6
September67°3.5″5
October55°3.2″6
November42°2.7″6
December31°2.2″5

Regional context

Drawing on NOAA NCEI 1991-2020 normals, Creve Coeur's January averages 26°F and July 76°F — 51°F apart — while precipitation totals roughly 37.6 inches over some 71 days.

Summer convection drives Creve Coeur's precipitation: May logs 4.7 inches on 8.4 rainy days, against February's 2.0 inches on 4.6 — warm-season storms carry Creve Coeur's moisture. That puts Creve Coeur in a summer-convective cohort with places like Marquette Heights, IL, North Pekin, IL and Bartonville, IL.

Creve Coeur's growing window opens around mid-April, once Creve Coeur's overnight lows stop freezing — sow kale, peas, spinach, and parsnips. Warm-soil crops in Creve Coeur wait about two weeks past Creve Coeur's last frost, once the soil warms. Creve Coeur's window closes around mid-November as overnight lows return below freezing. Within Creve Coeur, cold-air pooling chills low spots by 5-10°F, shifting Creve Coeur's local frost dates.

Similar climates: Marquette Heights, IL, North Pekin, IL, Bartonville, IL, East Peoria, IL, West Peoria, IL.

Frequently asked

When does it freeze in Creve Coeur?
Frost typically leaves Creve Coeur by mid-April and returns to Creve Coeur near mid-November.
What is the rainy season in Creve Coeur?
May is the wettest month in Creve Coeur, about 4.7 inches on average; the year totals roughly 38 inches.
What is the warmest month in Creve Coeur?
The warmest stretch in Creve Coeur comes in July, around 76°F on average.
What is the coldest month in Creve Coeur?
On average January is the chilliest month in Creve Coeur, about 26°F.
When can I start a vegetable garden in Creve Coeur?
Time tomatoes in Creve Coeur for two weeks after mid-April; peas and greens start at Creve Coeur's frost line.
How many rainy days does Creve Coeur get?
Expect roughly 71 wet days a year in Creve Coeur.
What hardiness zone is Creve Coeur?
Creve Coeur sits in the USDA zone set by January lows near 26°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for Creve Coeur?
Creve Coeur's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Creve Coeur?
See this week's day-by-day rain chances for Creve Coeur in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Creve Coeur?
Current conditions for Creve Coeur and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Creve Coeur forecast updated?
The Creve Coeur forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Creve Coeur?
Today's sunrise and sunset times for Creve Coeur are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Creve Coeur?
The next few days in Creve Coeur's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Creve Coeur, Illinois occupies a humid subtropical zone, with January means near 26°F and July around 76°F — a 50°F swing.

Across the year, Creve Coeur collects about 38 inches of precipitation over roughly 71 days with measurable rain or snow.

Latitude 40.6°N gives Creve Coeur its 50°F swing, and with it the rhythm of Creve Coeur's growing season.

All cities in Illinois →

Peoria, IL weather →

ZIP codes in Creve Coeur

  • 61610

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.