Cedarburg, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Cedarburg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle28%—78°66°—
- SundayJul 5Overcast10%—77°62°-1°
- MondayJul 6Overcast——79°60°+2°
- TuesdayJul 7Overcast——83°59°+4°
- WednesdayJul 8Drizzle28%—83°61°0°
- ThursdayJul 9Showers33%0.28″70°63°-13°
- FridayJul 10Partly Cloudy27%—78°61°+8°
AQI 40 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.87 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
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 30. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 30
- UV peak
- 4.8 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.87 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:51 PM
- Moonset
- 9:54 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Cedarburg at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: May 6 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 53012
16-Day Forecast — Cedarburg
- Sat78°66°28%
- Sun77°62°10%
- Mon79°60°3%
- Tue83°59°3%
- Wed83°61°28%
- Thu70°63°33%
- Fri78°61°27%
- Sat80°62°11%
- Sun67°59°11%
- Mon76°57°10%
- Tue77°60°13%
- Wed84°62°19%
- Thu86°67°11%
- Fri86°68°16%
- Sat85°67°20%
- Sun88°67°19%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Cedarburg
SPC includes Cedarburg in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 Cedarburg
- 53012