Harrison, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Harrison weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast15%—80°68°—
- SundayJul 5Overcast——80°63°0°
- MondayJul 6Clear——77°59°-3°
- TuesdayJul 7Overcast——76°56°-1°
- WednesdayJul 8Heavy Showers43%1.1″78°63°+2°
- ThursdayJul 9Light Showers51%0.09″72°60°-6°
- FridayJul 10Overcast21%—77°57°+5°
AQI 27 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 38 now. With UV 5.2 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 19 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 38 now. With UV 5.2 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 19 around 1 PM.
- Present
- AQI 38
- UV peak
- 5.2 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 19
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
- 10:54 PM
- Moonset
- 9:54 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Harrison at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: May 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Harrison
- Sat80°68°15%
- Sun80°63°3%
- Mon77°59°0%
- Tue76°56°4%
- Wed78°63°43%
- Thu72°60°51%
- Fri77°57°21%
- Sat81°62°11%
- Sun68°57°12%
- Mon75°55°11%
- Tue76°59°8%
- Wed77°61°19%
- Thu79°68°10%
- Fri82°67°17%
- Sat80°67°23%
- Sun83°66°23%
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 — Harrison
SPC includes Harrison 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 Harrison
- 54952
- 54169
- 54130
- 54915
- 54129