Algonquin, Illinois Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
Algonquin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 14Light Drizzle43%0.02″69°56°—
- MondayJun 15Overcast——75°51°+6°
- TuesdayJun 16Light Rain65%0.07″71°54°-4°
- WednesdayJun 17Showers91%0.65″67°52°-4°
- ThursdayJun 18Light Drizzle76%—70°55°+3°
- FridayJun 19Overcast——65°47°-5°
- SaturdayJun 20Drizzle17%0.15″65°53°0°
AQI 30 (Good), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM2.5 at 4.8 µg/m³ (AQI 27) with a 0.96 fine-to-coarse ratio and 3 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.
What's driving it
PM × Wind × Precip
PM2.5 at 4.8 µg/m³ (AQI 27) with a 0.96 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:16 AM
- Moonset
- 8:49 PM
- In sign
- ♊︎ Gemini
Solstice approaches — longest light
Algonquin at a glance
- Today vs. normal: 17°F below the seasonal normal for this latitude
- Last frost: April 29 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Algonquin
- Sun69°56°43%
- Mon75°51°3%
- Tue71°54°65%
- Wed67°52°91%
- Thu70°55°76%
- Fri65°47°7%
- Sat65°53°17%
- Sun66°50°34%
- Mon72°49°30%
- Tue75°54°8%
- Wed77°59°11%
- Thu79°61°40%
- Fri81°62°32%
- Sat88°68°42%
- Sun81°70°32%
- Mon84°64°30%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Algonquin
SPC has placed Algonquin in the General Thunderstorms category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 Algonquin
- 60102