Cerro Gordo, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Cerro Gordo weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Showers47%0.15″90°70°—
- SundayJul 5Overcast20%—83°70°-7°
- MondayJul 6Overcast12%—83°67°0°
- TuesdayJul 7Overcast——81°61°-2°
- WednesdayJul 8Light Drizzle——83°63°+2°
- ThursdayJul 9Light Drizzle38%—85°71°+2°
- FridayJul 10Light Drizzle38%0.01″80°69°-5°
AQI 30 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 8.4 µg/m³, PM10 at 9.5 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 during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 43 now. With UV 6.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 38 around 1 PM.
- Present
- AQI 43
- UV peak
- 6.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 38
PM × Wind × Precip
PM2.5 at 8.4 µg/m³, PM10 at 9.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:49 PM
- Moonset
- 10:01 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Cerro Gordo at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: April 15 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 61818
16-Day Forecast — Cerro Gordo
- Sat90°70°47%
- Sun83°70°20%
- Mon83°67°12%
- Tue81°61°4%
- Wed83°63°5%
- Thu85°71°38%
- Fri80°69°38%
- Sat83°67°20%
- Sun72°58°6%
- Mon71°56°5%
- Tue77°60°13%
- Wed80°63°20%
- Thu81°64°26%
- Fri81°69°32%
- Sat85°69°29%
- Sun80°72°32%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Cerro Gordo
SPC has placed Cerro Gordo in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 Cerro Gordo
- 61818