West Union, Illinois Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
West Union weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Light Drizzle15%0.02″86°71°—
- MondayJul 6Overcast16%—84°70°-2°
- TuesdayJul 7Overcast——82°68°-2°
- WednesdayJul 8Overcast11%—84°64°+2°
- ThursdayJul 9T-storm w/ Hail49%0.25″85°69°+1°
- FridayJul 10Heavy Drizzle55%0.08″86°73°+1°
- SaturdayJul 11Thunderstorm30%0.04″79°71°-7°
AQI 35 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 44 now. With UV 6.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 26 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 44 now. With UV 6.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 26 around 1 PM.
- Present
- AQI 44
- UV peak
- 6.4 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 26
PM × Wind × Precip
PM2.5 at 7.7 µg/m³ (AQI 43) with a 0.86 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.86
- 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
- 11:08 PM
- Moonset
- 11:03 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
West Union at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 62477
16-Day Forecast — West Union
- Sun86°71°15%
- Mon84°70°16%
- Tue82°68°9%
- Wed84°64°11%
- Thu85°69°49%
- Fri86°73°55%
- Sat79°71°30%
- Sun86°69°16%
- Mon89°70°7%
- Tue93°75°7%
- Wed80°63°8%
- Thu80°58°23%
- Fri83°62°25%
- Sat88°65°29%
- Sun89°72°24%
- Mon91°75°32%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — West Union
SPC includes West Union in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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.
ZIP codes in West Union
- 62477