Blue River, Wisconsin Weather
Prairie lightning bugs rise. Day 77 of spring. Read this microseason across nine climate regions →
Blue River weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast37%—86°53°—
- FridayJun 5Rain83%0.36″80°67°-6°
- SaturdayJun 6Overcast36%—84°66°+4°
- SundayJun 7Light Showers19%—79°65°-5°
- MondayJun 8Showers69%0.18″73°63°-6°
- TuesdayJun 9Heavy Drizzle44%0.05″82°68°+9°
- WednesdayJun 10Thunderstorm16%—84°66°+2°
Ozone at AQI 63 now. AQI up 7 over the last 6 hours (gradual rise). With UV 8.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 69 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 63 now. With UV 8.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 69 by mid-afternoon.
- Present
- AQI 63
- UV peak
- 8.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 69
PM × Wind × Precip
PM2.5 at 6.9 µg/m³, PM10 at 8.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.80
- 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
- 4:43 AM
- Moonset
- 1:54 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Blue River at a glance
- Today vs. normal: 12°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 — Blue River
SPC has placed Blue River in the Slight Risk category for severe thunderstorms tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWSLGTSlight Risk
- DAY 3NONENo severe risk
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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.