Grand Marsh, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Grand Marsh weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Showers18%0.06″80°65°—
- SundayJul 5Overcast——79°64°-1°
- MondayJul 6Clear——79°60°0°
- TuesdayJul 7Overcast——81°60°+2°
- WednesdayJul 8Thunderstorm51%0.10″79°64°-2°
- ThursdayJul 9Light Drizzle52%—75°62°-4°
- FridayJul 10Light Drizzle16%0.09″78°59°+3°
AQI 31 (Good), driven by PM2.5. AQI up 5 over the last 6 hours (gradual rise). PM2.5 at 6.9 µg/m³, PM10 at 8.4 µg/m³ — typical background levels with no transport signature.
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 38 now. With UV 6.8 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 25 around 1 PM.
- Present
- AQI 38
- UV peak
- 6.8 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 6.9 µg/m³, PM10 at 8.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.82
- Wind
- light
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:59 PM
- Moonset
- 10:01 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Grand Marsh at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: May 9 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 53936
16-Day Forecast — Grand Marsh
- Sat80°65°18%
- Sun79°64°8%
- Mon79°60°1%
- Tue81°60°3%
- Wed79°64°51%
- Thu75°62°52%
- Fri78°59°16%
- Sat82°64°10%
- Sun71°58°10%
- Mon77°54°10%
- Tue78°59°8%
- Wed80°60°20%
- Thu80°68°10%
- Fri83°67°14%
- Sat85°69°23%
- Sun84°70°26%
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 — Grand Marsh
SPC includes Grand Marsh 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 Grand Marsh
- 53936