Sibley, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Sibley weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain67%0.52″86°70°—
- SundayJul 5Light Rain28%0.07″82°69°-4°
- MondayJul 6Overcast——81°65°-1°
- TuesdayJul 7Overcast——79°60°-2°
- WednesdayJul 8Mostly Clear15%—81°61°+2°
- ThursdayJul 9Thunderstorm35%0.06″82°68°+1°
- FridayJul 10Foggy35%—77°68°-5°
AQI 29 (Good), driven by Ozone. AQI down 8 over the last 6 hours (gradual decline). Ozone at AQI 33 now. With UV 5.2 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 16 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 33 now. With UV 5.2 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 16 around 1 PM.
- Present
- AQI 33
- UV peak
- 5.2 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 16
PM × Wind × Precip
PM2.5 at 5.6 µg/m³, PM10 at 6.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- 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
- 9:59 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Sibley at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 61773
16-Day Forecast — Sibley
- Sat86°70°67%
- Sun82°69°28%
- Mon81°65°9%
- Tue79°60°5%
- Wed81°61°15%
- Thu82°68°35%
- Fri77°68°35%
- Sat81°65°18%
- Sun70°58°9%
- Mon71°55°9%
- Tue77°58°11%
- Wed78°62°23%
- Thu80°65°23%
- Fri80°69°20%
- Sat84°69°24%
- Sun80°71°35%
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 — Sibley
SPC has placed Sibley 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 Sibley
- 61773