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

Curran, Illinois Weather

Heat settles and the rain begins. Day 90 of spring. Read this microseason across nine climate regions →

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

Curran, IL
Wednesday, June 17 at 11:07 AM
70
°
Rain
Feels like
73°
Humidity
85%
Wind
7 mph
Sunrise
12:30 AM
Sunset
3:29 PM
Curran, IL
Hour by hour · 24h
24-Hour ForecastCurran, IL: 24-hour forecast. Temperatures range from 62 to 80 degrees Fahrenheit with a 69% chance of precipitation at 6 PM.
L 62°H 80°
Curran, IL
7-day forecast
  1. Today
    Jun 17
    Light Showers
    69%
    0.48″
    80°54°—
  2. Thursday
    Jun 18
    Overcast
    —
    —
    75°62°-5°
  3. Friday
    Jun 19
    Overcast
    —
    —
    77°58°+2°
  4. Saturday
    Jun 20
    Overcast
    —
    —
    76°65°-1°
  5. Sunday
    Jun 21
    Heavy Showers
    75%
    3.1″
    67°56°-9°
  6. Monday
    Jun 22
    Partly Cloudy
    67%
    —
    72°48°+5°
  7. Tuesday
    Jun 23
    Drizzle
    —
    0.08″
    75°55°+3°
Curran, IL
Next 24 hours · Mild now
58°71°84°6a12p6p12anow 70°high 80°low 62°PRECIP %
Curran, IL
Anemometer · 24h winds · from true
NESW
From · True
ESE
123° · backing 114°
Direction
ESE
123°
Sustained
7
mph
Gust
23
mph
Peak 24h
32
avg 10
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 10 · pk 32 @ 4:00p
01020304050MPHB1B2B3B4B5B6B7B8B9-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 4313SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 114° from the ese.
Curran, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
976.0
-3.6 mb in 3h · falling rapidly · 28.82 inHg
Now
976.0
mb
3h
-3.6
mb
12h
-9.0
mb
24h
-9.9
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 976–986
970975980985990-21h-18h-15h-12h-9h-6h-3h-24hNOW985.9976.0976.0
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Curran, IL
Air quality
17
AQI
Good
→+3 in 6h▲Peak ~31 @ 10 PM

AQI 17 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 3 hours of recent rain — PM2.5 down to 6.6 µg/m³, PM10 to 7.6 µg/m³.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.

PM 2.5DRIVERGood
6.6μg/m³
PM 10Good
8μg/m³
NO₂Good
5μg/m³
OzoneModerate
63μg/m³
UV IndexLow
1.4

What's driving it

Ozone × UV × Sky

Ozone at AQI 30. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.

Present
AQI 30
UV peak
1.6 at 1 PM
Sky at peak
overcast
Projected peak
AQI 4

PM × Wind × Precip

PM scrubbed by 3 hours of recent rain — PM2.5 down to 6.6 µg/m³, PM10 to 7.6 µg/m³.

PM2.5/PM10
0.87
Wind
light
Recent rain
3h in last 6h
Pattern
washed out

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 TREND50100WEDTHUFRISATSUNMONTUEWED7-DAY PM2.5 TREND · μg/m³300
Curran, IL
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
6.3mi
GOOD
106 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
16:07 UTC · Curran, 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
16:07 UTC · Curran, IL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Curran, IL
Satellite · infrared · animated
Curran, IL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Curran, IL
Almanac · Wednesday, June 17
A summer fog for fair, a winter fog for rain.
Civil dawn
4:59 AM
Sunrise
12:30 AM
Daylight
14h 59m
Sunset
3:29 PM
Civil dusk
9:03 PM
Planting note
Stake and prune tomato suckers. Watch for squash vine borers.
Curran, IL
The moon
Waxing Crescent
9% illuminated
Moonrise
7:59 AM
Moonset
10:35 PM
In sign
♌︎ Leo
Curran, IL
Microseason
Jun 16–20

Heat settles and the rain begins

bird
Jan 146% of the yearDec 31

Read this microseason across nine climate regions →

Curran at a glance

  • Today vs. normal: 5°F below the seasonal normal for this latitude
  • Last frost: April 14 (climatological average for this latitude)
  • Microseason: Jun 16–20
  • Planting window: Stake and prune tomato suckers. Watch for squash vine borers.

16-Day Forecast — Curran

  1. Wed80°54°69%
  2. Thu75°62°4%
  3. Fri77°58°1%
  4. Sat76°65°3%
  5. Sun67°56°75%
  6. Mon72°48°67%
  7. Tue75°55°5%
  8. Wed76°63°8%
  9. Thu80°62°26%
  10. Fri80°65°29%
  11. Sat84°68°27%
  12. Sun86°72°37%
  13. Mon75°65°36%
  14. Tue77°62°35%
  15. Wed77°60°35%
  16. Thu70°57°33%

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

Right now in the garden

Peak growing season

As of June 17, 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 — Curran

SPC has placed Curran in the Moderate Risk category for severe thunderstorms today.

  • TODAYMDTModerate Risk
  • TOMORROWNONENo severe risk
  • DAY 3NONENo severe risk

Widespread severe storms expected. Tornadoes (some strong), large hail, and damaging wind gusts are likely. Stay weather-aware and review your sheltering plan.

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 · June 16–20

Heat settles and the rain begins

Summer heat locks in; afternoon thunderstorms arrive with humid intensity, feeding kudzu and swamp vegetation.

Day 168 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 Curran's warmest stretch (~78°F) and January its coldest (~27°F); precipitation crests in May at 4.5 inches and ebbs in January to 1.9 inches.

MonthMean tempPrecipRainy days
January27°1.9″14
February31°2.1″12
March42°3.4″16
April54°4.1″16
May64°4.5″17
June73°4.3″15
July78°2.9″14
August78°2.5″13
September71°2.9″12
October58°3.0″11
November43°3.4″12
December31°2.7″13

Frequently asked

When does it freeze in Curran?
Curran's last spring frost lands near mid-April, and in Curran the first fall frost follows around mid-November.
What is the rainy season in Curran?
Curran sees its heaviest rain in May (around 4.5 inches), part of roughly 38 inches a year.
What is the warmest month in Curran?
July is Curran's warmest month, averaging about 78°F.
What is the coldest month in Curran?
Curran bottoms out in January, with a mean near 27°F.
When can I start a vegetable garden in Curran?
Curran's last frost (mid-April) cues hardy greens; in Curran, hold heat-lovers two weeks past.
How many rainy days does Curran get?
Curran records around 165 days of measurable precipitation annually.
What hardiness zone is Curran?
Curran sits in the USDA zone set by January lows near 27°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for Curran?
Curran'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 Curran?
See this week's day-by-day rain chances for Curran in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Curran?
Current conditions for Curran and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Curran forecast updated?
The Curran forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Curran?
Day length in Curran peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
How accurate is the weather forecast for Curran?
The next few days in Curran's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Curran's humid subtropical climate in Illinois pairs 27°F Januarys with 78°F Julys, 51°F apart across the seasons.

Rain and snow bring Curran roughly 38 inches a year across approximately 165 measurable-precipitation days.

At 39.7°N, Curran's 51°F summer-to-winter swing sets when Curran's gardens wake and when frost returns.

All cities in Illinois →

Springfield, IL weather →

ZIP codes in Curran

  • 62670

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.