Weather StoryAlmanac, microseasons, and the day's weather story.

Carbon Cliff, Illinois Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

Carbon Cliff weather forecast — hour by hour, 7-day outlook, NOAA radar

Carbon Cliff, IL
Saturday, July 4 at 10:08 AM
74
°
Overcast
Feels like
80°
Humidity
93%
Wind
7 mph
Sunrise
12:33 AM
Sunset
3:38 PM
Carbon Cliff, IL
Hour by hour · 24h
24-Hour ForecastCarbon Cliff, IL: 24-hour forecast. Temperatures range from 67 to 84 degrees Fahrenheit with a 29% chance of precipitation at 1 PM.
L 67°H 84°
Carbon Cliff, IL
7-day forecast
  1. Today
    Jul 4
    Overcast
    48%
    —
    84°67°—
  2. Sunday
    Jul 5
    Overcast
    24%
    —
    84°67°0°
  3. Monday
    Jul 6
    Mostly Clear
    —
    —
    82°63°-2°
  4. Tuesday
    Jul 7
    Overcast
    —
    —
    79°60°-3°
  5. Wednesday
    Jul 8
    Overcast
    10%
    —
    83°62°+4°
  6. Thursday
    Jul 9
    Thunderstorm
    37%
    0.01″
    82°67°-1°
  7. Friday
    Jul 10
    Overcast
    24%
    —
    80°65°-2°
Carbon Cliff, IL
Next 24 hours · Mild now
62°75°88°6a12p6p12anow 74°high 84°low 67°PRECIP %
Carbon Cliff, IL
Anemometer · 24h winds · from true
NESW
From · True
E
088° · veering 177°
Direction
E
088°
Sustained
7
mph
Gust
8
mph
Peak 24h
19
avg 6
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 6 · pk 19 @ 4:00p
010MPHB1B2B3B4-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 114SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Carbon Cliff, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
990.5
-0.1 mb in 3h · steady · 29.25 inHg
Now
990.5
mb
3h
-0.1
mb
12h
-0.9
mb
24h
-3.4
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 989–994
9809859909951000STORM|RAIN-21h-18h-15h-12h-9h-6h-3h-24hNOW993.9988.8990.5
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Carbon Cliff, IL
Air quality
26
AQI
Good
→0 in 6h▲Peak ~38 @ 9 PM

AQI 26 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 36. Overcast through the UV peak window (cloud cover ~79%) — afternoon ozone should stay flat.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.

PM 2.5Good
6.1μg/m³
PM 10Good
8μg/m³
NO₂Good
5μg/m³
OzoneDRIVERModerate
77μg/m³
UV IndexModerate
2.2

What's driving it

Ozone × UV × Sky

Ozone at AQI 36. Overcast through the UV peak window (cloud cover ~79%) — afternoon ozone should stay flat.

Present
AQI 36
UV peak
3.1 at 1 PM
Sky at peak
overcast
Projected peak
AQI 7

PM × Wind × Precip

PM2.5 at 6.1 µg/m³, PM10 at 7.7 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.79
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 TREND50100SATSUNMONTUEWEDTHUFRISAT7-DAY PM2.5 TREND · μg/m³300
Carbon Cliff, IL
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
25.9mi
UNLIMITED
53 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
15:08 UTC · Carbon Cliff, 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
15:08 UTC · Carbon Cliff, IL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Carbon Cliff, IL
Satellite · infrared · animated
Carbon Cliff, IL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Carbon Cliff, IL
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:00 AM
Sunrise
12:33 AM
Daylight
15h 05m
Sunset
3:38 PM
Civil dusk
9:13 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Carbon Cliff, IL
The moon
Waning Gibbous
81% illuminated
Moonrise
10:58 PM
Moonset
10:06 AM
In sign
♓︎ Pisces
Carbon Cliff, IL
Microseason
Jul 1–5

Cicadas claim the afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Carbon Cliff at a glance

  • Today vs. normal: 4°F above the seasonal normal for this latitude
  • Last frost: April 25 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 61239

16-Day Forecast — Carbon Cliff

  1. Sat84°67°48%
  2. Sun84°67°24%
  3. Mon82°63°3%
  4. Tue79°60°1%
  5. Wed83°62°10%
  6. Thu82°67°37%
  7. Fri80°65°24%
  8. Sat84°65°17%
  9. Sun69°59°9%
  10. Mon74°56°7%
  11. Tue75°60°7%
  12. Wed80°64°15%
  13. Thu82°66°19%
  14. Fri82°68°20%
  15. Sat85°70°23%
  16. Sun86°72°29%

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

Right now in the garden

Peak growing season

As of July 4, 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 — Carbon Cliff

SPC has placed Carbon Cliff in the Marginal Risk category for severe thunderstorms today.

  • TODAYMRGLMarginal Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3NONENo severe risk

Isolated severe storms possible. Limited threat for hail or damaging wind.

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: Winter settles deep on the plains.January 6–10: Arctic cold grips the heartland.January 11–15: Sunlight returns to the sloped terrain.January 16–20: Ring-necked pheasants call from cover.January 21–25: Deepest cold locks the prairie.January 26–31: Deep winter's pivot point.February 1–5: February's first breath.February 6–10: Subtle shifts in the light.February 11–15: Bald eagles concentrate on open water.February 16–20: Cold rebound before the final thaw.February 21–25: First killdeer return to thawed fields.February 26–28: Winter's veil grows thin.March 1–5: Ice withdraws from the land.March 6–10: Hibernators wake to open air.March 11–15: Spring arrives with fury and grace.March 16–20: Sandhill Cranes Rise from the Platte.March 21–25: Equinox — Night and Day Hold Balance.March 26–31: First Green Breaks Through Brown Earth.April 1–5: Thunder Voices Wake the Prairie.April 6–10: Cliff Swallows Return to Mud Nests.April 11–15: Wild Geese Wing North in Massive Flocks.April 16–20: Rainbows Follow Afternoon Storms.April 21–25: Prairie Sedges Push Through Wet Soil.April 26–30: Last Frost Retreats North.May 1–5: Wildflowers Erupt Across the Prairie.May 6–10: Grain Rains Feed the Growing Fields.May 11–15: Seedlings Rise From Frost-Free Soil.May 16–20: Roses Bloom Along the Shelter Rows.May 21–25: Summer Arrives Early in Wind and Heat.May 26–31: Frogs Begin Their Nightly Chorus.June 1–5: Prairie lightning bugs rise.June 6–10: Earthworms surface after rain.June 11–15: Toward the solstice glow.June 16–20: Lesser ripening, greater heat.June 21–25: Solstice—sun at zenith.June 26–30: Fireflies in the darkening oak.July 1–5: Cicadas claim the afternoon.July 6–10: Warm wind sweeps the tallgrass.July 11–15: Thunder builds every afternoon.July 16–20: Corn tassels and reaches peak.July 21–25: Dog days settle in haze.July 26–31: Katydid chorus erupts at dusk.August 1–5: Great rains sometimes fall.August 6–10: Autumn's edge approaches.August 11–15: Cool wind rises from the north.August 16–20: Late summer wind through tallgrass.August 21–25: Dew settles on the tallgrass.August 26–31: Monarchs gather on prairie.September 1–5: Corn tassels and heavy skies.September 6–10: Purple asters rise on the prairie.September 11–15: Hawks ride thermal currents south.September 16–20: Equinox brings balance to day.September 21–25: Thunder stills across the plains.September 26–30: Snow geese wheel through the flyway.October 1–5: Prairie enters dormancy slowly.October 6–10: Geese gather on autumn waters.October 11–15: First widespread freeze arrives.October 16–20: Oaks turn bronze and russet.October 21–25: Frost deepens through the night.October 26–31: Light rains fall on frozen ground.November 1–5: Tallgrass turns gold.November 6–10: North wind strips the oak.November 11–15: Frost locks the prairie.November 16–20: Open sky grows cold.November 21–25: First snow falls soft.November 26–30: Blizzard drives the herds.December 1–5: Deep winter takes hold.December 6–10: Sky closes cold, winter reigns.December 11–15: Darkness deepens, life retreats.December 16–20: Rivers turn to stone.December 21–25: Solstice — sun begins 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 afternoon

Millions of periodical and annual cicadas emerge, their droning chorus filling the summer heat; the soundtrack of midsummer settles over prairie and wetland.

Day 185 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

Carbon Cliff peaks at about 76°F in July and bottoms near 23°F in January; June brings the heaviest rain (5.0 inches) and January the least (1.7 inches).

MonthMean tempPrecipRainy days
January23°1.7″5
February28°1.8″5
March40°2.6″6
April51°3.8″7
May63°4.7″8
June72°5.0″8
July76°4.2″6
August73°4.0″6
September66°3.3″5
October54°2.8″5
November40°2.3″5
December29°2.0″5

Regional context

By the nearest station's NOAA NCEI 1991-2020 normals, Carbon Cliff sees 23°F Januarys and 76°F Julys, a 52°F range, plus around 38.3 inches of precipitation across 69 days.

Precipitation in Carbon Cliff runs summer-dominant: June averages 5.0 inches across 7.7 days of warm-season storms, while January drops to 1.7 inches over 4.5 rainy days of drier cool air. That puts Carbon Cliff in a summer-convective cohort with places like Silvis, IL, East Moline, IL and Barstow, IL.

By mid-April the frosts ease in Carbon Cliff, opening the season for kale, peas, spinach, and parsnips. Warm-soil crops in Carbon Cliff wait about two weeks past Carbon Cliff's last frost, once the soil warms. Carbon Cliff's window closes around mid-November as overnight lows return below freezing. In Carbon Cliff, low spots run 4-7°F colder than nearby slopes, nudging Carbon Cliff's frost dates a week.

Similar climates: Silvis, IL, East Moline, IL, Barstow, IL, Colona, IL, Campbell's Island, IL.

Frequently asked

When does it freeze in Carbon Cliff?
In Carbon Cliff, expect the last spring frost near mid-April; Carbon Cliff's first autumn frost comes around mid-November.
What is the rainy season in Carbon Cliff?
Rainfall in Carbon Cliff peaks in June near 5.0 inches, out of about 38 inches annually.
What is the warmest month in Carbon Cliff?
July is Carbon Cliff's warmest month, averaging about 76°F.
What is the coldest month in Carbon Cliff?
Carbon Cliff bottoms out in January, with a mean near 23°F.
When can I start a vegetable garden in Carbon Cliff?
Carbon Cliff's last frost (mid-April) cues hardy greens; in Carbon Cliff, hold heat-lovers two weeks past.
How many rainy days does Carbon Cliff get?
Carbon Cliff averages about 69 days with measurable rain or snow each year.
What hardiness zone is Carbon Cliff?
Carbon Cliff's USDA zone comes from its January mean (23°F); enter the ZIP on the USDA lookup for the number.
What is the 10-day forecast for Carbon Cliff?
Carbon Cliff'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 Carbon Cliff?
See this week's day-by-day rain chances for Carbon Cliff in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Carbon Cliff?
Current conditions for Carbon Cliff and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Carbon Cliff forecast updated?
The Carbon Cliff forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Carbon Cliff?
Today's sunrise and sunset times for Carbon Cliff 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 Carbon Cliff?
The next few days in Carbon Cliff's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Carbon Cliff, Illinois occupies a warm-summer humid continental zone, with January means near 23°F and July around 76°F — a 53°F swing.

In a typical year Carbon Cliff records about 38 inches of precipitation on around 69 days.

The 53°F gap between Carbon Cliff's summer and winter, at 41.5°N, shapes Carbon Cliff's frost calendar.

All cities in Illinois →

Davenport, IA weather →

ZIP codes in Carbon Cliff

  • 61244
  • 61239
  • 61282

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.