River Hills, Wisconsin Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
River Hills weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——85°53°—
- FridayJun 5Heavy Rain62%0.50″77°66°-8°
- SaturdayJun 6Light Drizzle36%—75°57°-2°
- SundayJun 7Overcast——59°54°-16°
- MondayJun 8Showers26%0.32″60°57°+1°
- TuesdayJun 9Foggy31%—66°57°+6°
- WednesdayJun 10Foggy23%—65°60°-1°
Ozone at AQI 71 now. With UV 8.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 81 by mid-afternoon.
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 71 now. With UV 8.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 81 by mid-afternoon.
- Present
- AQI 71
- UV peak
- 8.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 81
PM × Wind × Precip
PM2.5 at 8.5 µg/m³, PM10 at 8.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.96
- Wind
- breezy
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:32 AM
- Moonset
- 1:43 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
River Hills at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: May 5 (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 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 — River Hills
SPC has placed River Hills 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.