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

Coal Valley, Illinois Weather

Lesser ripening, greater heat. Day 89 of spring. Read this microseason across nine climate regions →

Coal Valley weather forecast — hour by hour, 7-day outlook, NOAA radar

Coal Valley, IL
Tuesday, June 16 at 11:46 AM
71
°
Clear
Feels like
66°
Humidity
44%
Wind
19 mph
Sunrise
12:27 AM
Sunset
3:37 PM
Coal Valley, IL
Hour by hour · 24h
24-Hour ForecastCoal Valley, IL: 24-hour forecast. Temperatures range from 57 to 72 degrees Fahrenheit with a 75% chance of precipitation at 10 AM.
L 57°H 72°
Coal Valley, IL
7-day forecast
  1. Today
    Jun 16
    Light Drizzle
    27%
    0.01″
    72°61°—
  2. Wednesday
    Jun 17
    Thunderstorm
    75%
    1.8″
    79°57°+7°
  3. Thursday
    Jun 18
    Overcast
    11%
    —
    67°57°-12°
  4. Friday
    Jun 19
    Mostly Clear
    —
    —
    71°54°+4°
  5. Saturday
    Jun 20
    Overcast
    17%
    —
    70°57°-1°
  6. Sunday
    Jun 21
    Rain
    56%
    0.69″
    62°57°-8°
  7. Monday
    Jun 22
    Overcast
    44%
    —
    71°53°+9°
Coal Valley, IL
Next 24 hours · Mild now
54°65°76°6a12p6p12anow 71°high 72°low 57°PRECIP %
Coal Valley, IL
Anemometer · 24h winds · from true
NESW
From · True
W
273° · veering 9°
Direction
W
273°
Sustained
19
mph
Gust
28
mph
Peak 24h
29
avg 11
Beaufort · 5 · FRESH 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 11 · pk 29 @ 8:00a
0102030MPHB1B2B3B4B5B6B7-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2817SUSTGUST
−24h−18h−12h−6hnow
Sustained 19 mph with gusts pulsing to 28 — flags snap, branches bend.
Coal Valley, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
980.4
+1.1 mb in 3h · rising · 28.95 inHg
Now
980.4
mb
3h
+1.1
mb
12h
-4.7
mb
24h
-8.7
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 979–989
9759809859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW988.9979.1980.2
−24h−18h−12h−6hnow
The low is filling — pressure climbing out of storm territory.
Coal Valley, IL
Air quality
31
AQI
Good
→+3 in 6h▲Peak ~39 @ 11 PM

AQI 31 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 37 now. With UV 7.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 36 around 1 PM.

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

PM 2.5Good
3.2μg/m³
PM 10Good
3μg/m³
NO₂Good
2μg/m³
OzoneDRIVERModerate
78μg/m³
UV IndexHigh
6.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 37 now. With UV 7.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 36 around 1 PM.

Present
AQI 37
UV peak
7.3 at 1 PM
Sky at peak
clear
Projected peak
AQI 36

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 TREND50100TUEWEDTHUFRISATSUNMONTUE7-DAY PM2.5 TREND · μg/m³300
Coal Valley, IL
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
91.5mi
UNLIMITED
127 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
16:46 UTC · Coal Valley, 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
16:46 UTC · Coal Valley, IL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Coal Valley, IL
Satellite · infrared · animated
Coal Valley, IL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Coal Valley, IL
Almanac · Tuesday, June 16
Cut your thistles before St. John, you will have two instead of one.
Civil dawn
4:54 AM
Sunrise
12:27 AM
Daylight
15h 10m
Sunset
3:37 PM
Civil dusk
9:12 PM
Planting note
Stake and prune tomato suckers. Watch for squash vine borers.
Coal Valley, IL
The moon
Waxing Crescent
4% illuminated
Moonrise
6:40 AM
Moonset
9:56 PM
In sign
♋︎ Cancer
Coal Valley, IL
Microseason
Jun 16–20

Lesser ripening, greater heat

weather
Jan 146% of the yearDec 31

Read this microseason across nine climate regions →

Coal Valley at a glance

  • Today vs. normal: 3°F below the seasonal normal for this latitude
  • Last frost: April 25 (climatological average for this latitude)
  • Microseason: Jun 16–20
  • Planting window: Stake and prune tomato suckers. Watch for squash vine borers.

16-Day Forecast — Coal Valley

  1. Tue72°61°27%
  2. Wed79°57°75%
  3. Thu67°57°11%
  4. Fri71°54°2%
  5. Sat70°57°17%
  6. Sun62°57°56%
  7. Mon71°53°44%
  8. Tue74°53°10%
  9. Wed78°63°11%
  10. Thu81°62°26%
  11. Fri81°69°29%
  12. Sat84°70°30%
  13. Sun88°74°32%
  14. Mon86°73°36%
  15. Tue89°75°35%
  16. Wed89°74°35%

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

Right now in the garden

Peak growing season

As of June 16, 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 — Coal Valley

SPC has placed Coal Valley in the Enhanced Risk category for severe thunderstorms tomorrow.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWENHEnhanced Risk
  • DAY 3NONENo severe risk

Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.

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 · June 16–20

Lesser ripening, greater heat

Rapid plant growth as heat intensifies; corn silks emerge, wheat berries fill in the harvest belt, insects reach peak activity.

Day 167 of 365 · Wedge 34 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

July is Coal Valley's warmest stretch (~76°F) and January its coldest (~23°F); precipitation crests in June at 5.0 inches and ebbs in January to 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

In Coal Valley, NOAA NCEI 1991-2020 normals put January near 23°F and July near 76°F — a 52°F seasonal arc — with about 38.3 inches of precipitation over 69 rainy or snowy days.

Coal Valley's rain peaks in summer: June brings 5.0 inches over 7.7 thunderstorm-fed days, while January sees just 1.7 inches across 4.5 days under cooler, drier air. That puts Coal Valley in a summer-convective cohort with places like Moline, IL, Silvis, IL and Carbon Cliff, IL.

Once Coal Valley passes mid-April, overnight freezes fade and kale, peas, spinach, and parsnips can be sown. Tomatoes and peppers do best set out two weeks later in Coal Valley, once nights clear the mid-40s°F. The season ends by mid-November in Coal Valley, once hard frosts set back in. Coal Valley's low ground holds frost later into spring than Coal Valley's benches, which run 3-5 days ahead.

Similar climates: Moline, IL, Silvis, IL, Carbon Cliff, IL, Colona, IL, Milan, IL.

Frequently asked

When does it freeze in Coal Valley?
Frost typically leaves Coal Valley by mid-April and returns to Coal Valley near mid-November.
What is the rainy season in Coal Valley?
Rainfall in Coal Valley peaks in June near 5.0 inches, out of about 38 inches annually.
What is the warmest month in Coal Valley?
Coal Valley peaks in July, when the mean runs near 76°F.
What is the coldest month in Coal Valley?
January is Coal Valley's coldest month, averaging about 23°F.
When can I start a vegetable garden in Coal Valley?
Hardy spring crops go in near mid-April in Coal Valley; tender peppers and squash wait 10–14 days.
How many rainy days does Coal Valley get?
Expect roughly 69 wet days a year in Coal Valley.
What hardiness zone is Coal Valley?
Since January in Coal Valley averages 23°F, Coal Valley's USDA zone follows that floor — confirm it by ZIP.
What is the 10-day forecast for Coal Valley?
Coal Valley'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 Coal Valley?
See this week's day-by-day rain chances for Coal Valley in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Coal Valley?
Current conditions for Coal Valley and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Coal Valley forecast updated?
The Coal Valley forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Coal Valley?
Day length in Coal Valley peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
How accurate is the weather forecast for Coal Valley?
The next few days in Coal Valley's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

In Coal Valley, Illinois, the warm-summer humid continental climate runs from about 23°F in January to 76°F in July, a 53°F seasonal range.

Across the year, Coal Valley collects about 38 inches of precipitation over roughly 69 days with measurable rain or snow.

From 41.4°N, Coal Valley sees a 53°F seasonal swing that governs Coal Valley's planting and frost windows.

All cities in Illinois →

Davenport, IA weather →

ZIP codes in Coal Valley

  • 61240

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.