Chelsea, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Chelsea weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain19%1.1″81°62°—
- SundayJul 5Overcast16%—81°62°0°
- MondayJul 6Overcast——79°59°-2°
- TuesdayJul 7Light Drizzle13%—80°61°+1°
- WednesdayJul 8Heavy Showers62%0.95″74°64°-6°
- ThursdayJul 9Overcast62%—80°56°+6°
- FridayJul 10Light Drizzle11%—78°57°-2°
AQI 40 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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
- 11:04 PM
- Moonset
- 10:01 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Chelsea at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: May 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Chelsea
- Sat81°62°19%
- Sun81°62°16%
- Mon79°59°5%
- Tue80°61°13%
- Wed74°64°62%
- Thu80°56°62%
- Fri78°57°11%
- Sat76°59°13%
- Sun72°54°8%
- Mon79°52°8%
- Tue77°57°8%
- Wed76°61°15%
- Thu83°58°19%
- Fri86°62°16%
- Sat86°65°26%
- Sun83°68°27%
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 — Chelsea
SPC includes Chelsea in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- 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 Chelsea
- 54490
- 54451