Elwin, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Elwin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle48%—91°70°—
- SundayJul 5Overcast19%—83°70°-8°
- MondayJul 6Light Drizzle11%—83°67°0°
- TuesdayJul 7Mostly Clear——81°62°-2°
- WednesdayJul 8Light Drizzle——84°64°+3°
- ThursdayJul 9Light Drizzle39%—85°71°+1°
- FridayJul 10Drizzle39%0.11″80°68°-5°
AQI 30 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 40 now. With UV 5.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 30 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 40 now. With UV 5.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 30 around 1 PM.
- Present
- AQI 40
- UV peak
- 5.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 30
PM × Wind × Precip
PM2.5 at 5.7 µg/m³, PM10 at 6.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.93
- 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
- 10:50 PM
- Moonset
- 10:02 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Elwin at a glance
- Today vs. normal: 13°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: 62532
16-Day Forecast — Elwin
- Sat91°70°48%
- Sun83°70°19%
- Mon83°67°11%
- Tue81°62°4%
- Wed84°64°6%
- Thu85°71°39%
- Fri80°68°39%
- Sat83°68°21%
- Sun72°58°7%
- Mon71°57°5%
- Tue77°60°13%
- Wed79°63°17%
- Thu82°64°23%
- Fri82°71°29%
- Sat85°70°16%
- Sun82°72°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 — Elwin
SPC has placed Elwin 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 Elwin
- 62532