Green Valley, Wisconsin Weather
Fireflies rise from the lawn. Day 78 of spring. Read this microseason across nine climate regions →
Green Valley weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast12%—84°58°—
- FridayJun 5Heavy Drizzle57%0.12″82°66°-2°
- SaturdayJun 6Partly Cloudy27%—84°58°+2°
- SundayJun 7Overcast——73°52°-11°
- MondayJun 8Light Drizzle35%—72°56°-1°
- TuesdayJun 9Foggy47%—77°61°+5°
- WednesdayJun 10Foggy22%—84°62°+7°
Ozone at AQI 70. AQI up 38 in the last 6 hours — air quality is degrading. Overcast through the UV peak window (cloud cover ~65%) — 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 70. Overcast through the UV peak window (cloud cover ~65%) — afternoon ozone should stay flat.
- Present
- AQI 70
- UV peak
- 0.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 5.6 µg/m³ (AQI 31) with a 0.82 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.82
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:07 AM
- Moonset
- 2:47 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Green Valley at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: May 15 (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 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 — Green Valley
SPC has placed Green Valley in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWMRGLMarginal Risk
- DAY 3NONENo severe risk
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.