Cornucopia, Wisconsin Weather
Prairie lightning bugs rise. Day 76 of spring. Read this microseason across nine climate regions →
Cornucopia weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——80°44°—
- ThursdayJun 4Drizzle44%0.06″73°58°-7°
- FridayJun 5Light Drizzle18%—78°53°+5°
- SaturdayJun 6Foggy——67°51°-11°
- SundayJun 7Mostly Clear——73°50°+6°
- MondayJun 8Overcast30%—79°58°+6°
- TuesdayJun 9Light Drizzle28%0.01″74°63°-5°
Ozone at AQI 500 — peak already passed at 1 PM under clear skies. AQI up 11 over the last 6 hours (gradual rise). Levels should ease through evening.
AVOID OUTDOORS Avoid outdoor exertion. Keep windows closed; use HEPA filtration indoors if available.
What's driving it
Ozone × UV × Sky
Ozone at AQI 500 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 500
- UV peak
- 5.5 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 500
PM × Wind × Precip
PM2.5 at 7.5 µg/m³ (AQI 42) with a 0.97 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.97
- Wind
- calm
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:27 AM
- Moonset
- 12:34 PM
- In sign
- ♑︎ Capricorn
Prairie lightning bugs rise
Cornucopia at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: May 27 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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 — Cornucopia
SPC has placed Cornucopia in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.