Georgetown, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Georgetown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Drizzle55%0.04″91°71°—
- SundayJul 5Rain23%0.10″84°70°-7°
- MondayJul 6Light Drizzle14%—83°67°-1°
- TuesdayJul 7Mostly Clear——82°62°-1°
- WednesdayJul 8Clear——82°63°0°
- ThursdayJul 9Thunderstorm43%—84°69°+2°
- FridayJul 10Light Drizzle43%—78°69°-6°
AQI 31 (Good), driven by Ozone. AQI down 7 over the last 6 hours (gradual decline). Ozone at AQI 42 now. With UV 6.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 36 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 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 42 now. With UV 6.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 36 around 1 PM.
- Present
- AQI 42
- UV peak
- 6.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 36
PM × Wind × Precip
PM2.5 at 7.4 µg/m³ (AQI 41) with a 0.90 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.90
- Wind
- light
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:45 PM
- Moonset
- 9:56 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Georgetown at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 61846
16-Day Forecast — Georgetown
- Sat91°71°55%
- Sun84°70°23%
- Mon83°67°14%
- Tue82°62°4%
- Wed82°63°4%
- Thu84°69°43%
- Fri78°69°43%
- Sat83°66°15%
- Sun72°58°7%
- Mon70°57°7%
- Tue77°59°12%
- Wed81°62°23%
- Thu82°66°24%
- Fri82°69°32%
- Sat85°70°26%
- Sun82°71°29%
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 — Georgetown
SPC has placed Georgetown 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 Georgetown
- 61846