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

Lake Summerset, Illinois Weather

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

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

Lake Summerset, IL
Saturday, July 4 at 8:14 PM
74
°
Partly Cloudy
Feels like
83°
Humidity
91%
Wind
1 mph
Sunrise
12:26 AM
Sunset
3:37 PM
Lake Summerset, IL
Hour by hour · 24h
24-Hour ForecastLake Summerset, IL: 24-hour forecast. Temperatures range from 67 to 81 degrees Fahrenheit with a 21% chance of precipitation at 8 PM.
L 67°H 81°
Lake Summerset, IL
7-day forecast
  1. Today
    Jul 4
    Heavy Showers
    45%
    0.83″
    78°67°
  2. Sunday
    Jul 5
    Overcast
    81°67°+3°
  3. Monday
    Jul 6
    Overcast
    79°63°-2°
  4. Tuesday
    Jul 7
    Overcast
    81°59°+2°
  5. Wednesday
    Jul 8
    T-storm w/ Hail
    32%
    0.01″
    80°64°-1°
  6. Thursday
    Jul 9
    Drizzle
    42%
    0.04″
    74°66°-6°
  7. Friday
    Jul 10
    Light Drizzle
    15%
    78°58°+4°
Lake Summerset, IL
Anemometer · 24h winds · from true
NESW
From · True
NE
034° · veering 149°
Direction
NE
034°
Sustained
1
mph
Gust
4
mph
Peak 24h
19
avg 5
Beaufort · 1 · LIGHT AIR
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 19 @ 9:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 207SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Lake Summerset, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
984.4
-0.6 mb in 3h · falling · 29.07 inHg
Now
984.4
mb
3h
-0.6
mb
12h
-1.7
mb
24h
-1.7
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 984987
9809859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW987.1984.4984.4
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Lake Summerset, IL
Air quality
38
AQI
Good
+4 in 6h

AQI 38 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 32. Overcast through the UV peak window (cloud cover ~80%) — afternoon ozone should stay flat.

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

PM 2.5Good
4.9μg/m³
PM 10Good
6μg/m³
NO₂Good
6μg/m³
OzoneDRIVERModerate
68μg/m³
UV IndexLow
0.1

What's driving it

Ozone × UV × Sky

Ozone at AQI 32. Overcast through the UV peak window (cloud cover ~80%) — afternoon ozone should stay flat.

Present
AQI 32
UV peak
0.1 at 1 PM
Sky at peak
overcast
Projected peak
AQI 4

PM × Wind × Precip

PM2.5 at 4.9 µg/m³, PM10 at 5.5 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.89
Wind
calm
Recent rain
1h in last 6h
Pattern
background
Lake Summerset, IL
Sky cover · visibility · 24h
Cloud cover
65%
PARTLY CLOUDY
100%0%−24h−18h−12h−6hnow

Visibility
28.3mi
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
01:14 UTC · Lake Summerset, 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
01:14 UTC · Lake Summerset, IL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Lake Summerset, IL
Satellite · infrared · animated
Lake Summerset, IL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Lake Summerset, IL
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:52 AM
Sunrise
12:26 AM
Daylight
15h 11m
Sunset
3:37 PM
Civil dusk
9:13 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Lake Summerset, IL
The moon
Waning Gibbous
77% illuminated
Moonrise
11:17 PM
Moonset
11:09 AM
In sign
♓︎ Pisces
Lake Summerset, IL
Microseason
Jul 1–5

Cicadas claim the afternoon

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Lake Summerset at a glance

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

16-Day Forecast — Lake Summerset

  1. Sat78°67°45%
  2. Sun81°67°5%
  3. Mon79°63°1%
  4. Tue81°59°1%
  5. Wed80°64°32%
  6. Thu74°66°42%
  7. Fri78°58°15%
  8. Sat75°58°8%
  9. Sun78°52°9%
  10. Mon76°58°7%
  11. Tue82°65°6%
  12. Wed81°61°23%
  13. Thu76°64°27%
  14. Fri84°70°24%
  15. Sat87°75°26%
  16. Sun83°61°25%

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 — Lake Summerset

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

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • 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.

ZIP codes in Lake Summerset

  • 61019

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.