Marengo, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Marengo weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle30%—77°62°—
- SundayJul 5Overcast——81°57°+4°
- MondayJul 6Overcast14%—85°58°+4°
- TuesdayJul 7Thunderstorm41%—80°65°-5°
- WednesdayJul 8Showers66%0.26″71°55°-9°
- ThursdayJul 9Foggy53%—82°53°+11°
- FridayJul 10Rain13%0.45″61°54°-21°
AQI 36 (Good), driven by Ozone. AQI down 13 over the last 6 hours (gradual decline). Ozone at AQI 36 now. With UV 6.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 31 around 1 PM.
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 36 now. With UV 6.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 31 around 1 PM.
- Present
- AQI 36
- UV peak
- 6.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 31
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
- 11:08 PM
- Moonset
- 10:02 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Marengo at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: May 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 54855
16-Day Forecast — Marengo
- Sat77°62°30%
- Sun81°57°9%
- Mon85°58°14%
- Tue80°65°41%
- Wed71°55°66%
- Thu82°53°53%
- Fri61°54°13%
- Sat75°52°14%
- Sun83°55°12%
- Mon84°55°12%
- Tue87°61°12%
- Wed83°64°10%
- Thu88°64°16%
- Fri76°60°16%
- Sat64°53°20%
- Sun84°53°16%
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 — Marengo
SPC includes Marengo in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
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 Marengo
- 54855