Lannon, Wisconsin Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Lannon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——77°65°—
- MondayJul 6Overcast——81°61°+4°
- TuesdayJul 7Overcast——83°59°+2°
- WednesdayJul 8Light Drizzle16%—84°65°+1°
- ThursdayJul 9Thunderstorm58%—76°63°-8°
- FridayJul 10Overcast25%—77°61°+1°
- SaturdayJul 11Overcast——77°62°0°
AQI 37 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.7 µg/m³, PM10 at 9.3 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 44 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 44
- UV peak
- 3.6 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 44
PM × Wind × Precip
PM2.5 at 8.7 µg/m³, PM10 at 9.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- breezy
- 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
- 11:13 PM
- Moonset
- 11:04 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Lannon at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: May 5 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 53046
16-Day Forecast — Lannon
- Sun77°65°6%
- Mon81°61°1%
- Tue83°59°0%
- Wed84°65°16%
- Thu76°63°58%
- Fri77°61°25%
- Sat77°62°9%
- Sun83°63°9%
- Mon75°58°10%
- Tue75°56°10%
- Wed79°57°12%
- Thu81°61°21%
- Fri83°64°26%
- Sat85°67°29%
- Sun87°65°16%
- Mon85°67°26%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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.
ZIP codes in Lannon
- 53046