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

Avon, Illinois Weather

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

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

Avon, IL
Saturday, July 4 at 10:52 AM
80
°
Overcast
Feels like
90°
Humidity
82%
Wind
6 mph
Sunrise
12:36 AM
Sunset
3:36 PM
Avon, IL
Hour by hour · 24h
24-Hour ForecastAvon, IL: 24-hour forecast. Temperatures range from 69 to 87 degrees Fahrenheit with a 26% chance of precipitation at 12 PM.
L 69°H 87°
Avon, IL
7-day forecast
  1. Today
    Jul 4
    Rain
    42%
    0.23″
    87°68°
  2. Sunday
    Jul 5
    Overcast
    18%
    85°69°-2°
  3. Monday
    Jul 6
    Light Drizzle
    82°65°-3°
  4. Tuesday
    Jul 7
    Clear
    81°62°-1°
  5. Wednesday
    Jul 8
    Light Drizzle
    85°64°+4°
  6. Thursday
    Jul 9
    Thunderstorm
    39%
    83°71°-2°
  7. Friday
    Jul 10
    Overcast
    39%
    82°66°-1°
Avon, IL
Anemometer · 24h winds · from true
NESW
From · True
SW
214° · steady
Direction
SW
214°
Sustained
6
mph
Gust
11
mph
Peak 24h
17
avg 5
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 5 · pk 17 @ 3:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 164SUSTGUST
−24h−18h−12h−6hnow
Light breeze holding from the sw.
Avon, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
991.8
+0.7 mb in 3h · rising · 29.29 inHg
Now
991.8
mb
3h
+0.7
mb
12h
-2.0
mb
24h
-2.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 991995
9859909951000STORM|RAIN-21h-18h-15h-12h-9h-6h-3h-24hNOW995.2990.6992.4
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Avon, IL
Air quality
23
AQI
Good
-6 in 6hPeak ~43 @ 10 PM

AQI 23 (Good), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM2.5 at 8.5 µg/m³ (AQI 47) with a 0.88 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.

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
8.5μg/m³
PM 10Good
10μg/m³
NO₂Good
3μg/m³
OzoneModerate
70μg/m³
UV IndexModerate
2.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 33 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 around 1 PM.

Present
AQI 33
UV peak
3.3 at 1 PM
Sky at peak
partly cloudy
Projected peak
AQI 10

PM × Wind × Precip

PM2.5 at 8.5 µg/m³ (AQI 47) with a 0.88 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.88
Wind
light
Recent rain
0h in last 6h
Pattern
stagnant smoke
Avon, IL
Sky cover · visibility · 24h
Cloud cover
88%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
36.1mi
UNLIMITED
57 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
15:52 UTC · Avon, 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
15:52 UTC · Avon, IL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Avon, IL
Satellite · infrared · animated
Avon, IL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Avon, IL
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:04 AM
Sunrise
12:36 AM
Daylight
15h 00m
Sunset
3:36 PM
Civil dusk
9:10 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Avon, IL
The moon
Waning Gibbous
80% illuminated
Moonrise
10:57 PM
Moonset
10:07 AM
In sign
♓︎ Pisces
Avon, IL
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Avon at a glance

  • Today vs. normal: 9°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: 61415

16-Day Forecast — Avon

  1. Sat87°68°42%
  2. Sun85°69°18%
  3. Mon82°65°5%
  4. Tue81°62°2%
  5. Wed85°64°9%
  6. Thu83°71°39%
  7. Fri82°66°39%
  8. Sat83°66°14%
  9. Sun69°59°8%
  10. Mon75°56°6%
  11. Tue76°61°6%
  12. Wed80°64°16%
  13. Thu81°65°14%
  14. Fri82°68°26%
  15. Sat85°69°13%
  16. Sun83°72°20%

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 — Avon

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

  • TODAYMRGLMarginal Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

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.

ZIP codes in Avon

  • 61415

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.