Willow Lake, Illinois Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Willow Lake weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Drizzle15%0.03″82°66°—
- MondayJul 6Clear——83°62°+1°
- TuesdayJul 7Overcast——81°60°-2°
- WednesdayJul 8Overcast23%—82°66°+1°
- ThursdayJul 9Thunderstorm51%0.11″80°68°-2°
- FridayJul 10Light Drizzle33%—80°65°0°
- SaturdayJul 11Light Drizzle20%—83°65°+3°
AQI 23 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.6 µg/m³, PM10 at 7.1 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 31 now. With UV 4.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 20 around 1 PM.
- Present
- AQI 31
- UV peak
- 4.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 20
PM × Wind × Precip
PM2.5 at 6.6 µg/m³, PM10 at 7.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.93
- 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
- 11:18 PM
- Moonset
- 11:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Willow Lake at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: April 30 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Willow Lake
- Sun82°66°15%
- Mon83°62°1%
- Tue81°60°1%
- Wed82°66°23%
- Thu80°68°51%
- Fri80°65°33%
- Sat83°65°20%
- Sun84°68°9%
- Mon89°71°4%
- Tue89°66°6%
- Wed74°60°13%
- Thu77°57°19%
- Fri81°60°11%
- Sat85°69°23%
- Sun86°70°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 — Willow Lake
SPC includes Willow Lake 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 Willow Lake
- 61032