West Union, Illinois Weather
Heat settles and the rain begins. Day 89 of spring. Read this microseason across nine climate regions →
West Union weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——74°60°—
- TuesdayJun 16Light Rain47%0.09″78°56°+4°
- WednesdayJun 17T-storm w/ Hail83%0.87″85°56°+7°
- ThursdayJun 18Thunderstorm83%0.01″75°63°-10°
- FridayJun 19Overcast13%—76°58°+1°
- SaturdayJun 20Overcast——77°58°+1°
- SundayJun 21Drizzle52%0.01″75°61°-2°
AQI 45 (Good), driven by Ozone. AQI up 11 over the last 6 hours (gradual rise). Ozone at AQI 44. Overcast through the UV peak window (cloud cover ~69%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 44. Overcast through the UV peak window (cloud cover ~69%) — afternoon ozone should stay flat.
- Present
- AQI 44
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
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).








































Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 6:38 AM
- Moonset
- 9:35 PM
- In sign
- ♋︎ Cancer
Heat settles and the rain begins
West Union at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — West Union
- Mon74°60°0%
- Tue78°56°47%
- Wed85°56°83%
- Thu75°63°83%
- Fri76°58°13%
- Sat77°58°6%
- Sun75°61°52%
- Mon73°58°52%
- Tue74°55°20%
- Wed78°62°12%
- Thu84°62°16%
- Fri86°66°23%
- Sat79°64°35%
- Sun88°65°35%
- Mon85°72°42%
- Tue79°65°46%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 16, 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 has placed West Union in the Enhanced Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3ENHEnhanced Risk
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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