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
- TodayJul 5Overcast12%—81°66°—
- MondayJul 6Partly Cloudy——83°63°+2°
- TuesdayJul 7Overcast——82°60°-1°
- WednesdayJul 8Overcast28%—81°66°-1°
- ThursdayJul 9Thunderstorm51%0.07″80°64°-1°
- FridayJul 10Light Drizzle31%—79°65°-1°
- SaturdayJul 11Overcast19%—83°64°+4°
AQI 24 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.7 µg/m³, PM10 at 7.3 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37 now. With UV 4.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 14 around 1 PM.
- Present
- AQI 37
- UV peak
- 4.1 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 14
PM × Wind × Precip
PM2.5 at 6.7 µg/m³, PM10 at 7.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- Wind
- breezy
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:17 PM
- Moonset
- 11:09 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Lake Summerset at a glance
- Today vs. normal: 10°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
- Sun81°66°12%
- Mon83°63°1%
- Tue82°60°0%
- Wed81°66°28%
- Thu80°64°51%
- Fri79°65°31%
- Sat83°64°19%
- Sun84°68°10%
- Mon89°70°4%
- Tue89°66°7%
- Wed74°60°13%
- Thu78°58°19%
- Fri81°60°11%
- Sat85°69°23%
- Sun86°69°23%
- Mon88°71°19%
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
- TOMORROWNONENo severe risk
- 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