Cisco, Illinois Weather
Fireflies pulse through the magnolias. Day 76 of spring. Read this microseason across nine climate regions →
Cisco weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——83°53°—
- ThursdayJun 4Overcast——85°58°+2°
- FridayJun 5Light Drizzle28%—81°65°-4°
- SaturdayJun 6Light Showers37%—82°65°+1°
- SundayJun 7Light Showers21%—84°69°+2°
- MondayJun 8Light Showers37%0.01″75°69°-9°
- TuesdayJun 9Drizzle20%—73°69°-2°
Ozone at AQI 500. AQI flat over the last 6 hours (within ±3 points). Overcast through the UV peak window (cloud cover ~64%) — afternoon ozone should stay flat.
AVOID OUTDOORS Avoid outdoor exertion. Keep windows closed; use HEPA filtration indoors if available.
What's driving it
Ozone × UV × Sky
Ozone at AQI 500. Overcast through the UV peak window (cloud cover ~64%) — afternoon ozone should stay flat.
- Present
- AQI 500
- UV peak
- 9.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 300
PM × Wind × Precip
PM2.5 at 4.5 µg/m³, PM10 at 5.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.85
- Wind
- light
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 3:47 AM
- Moonset
- 12:54 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Cisco at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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 — Cisco
SPC has placed Cisco in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- 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.