Lyons, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Lyons weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle54%0.04″82°67°—
- SundayJul 5Overcast15%—80°63°-2°
- MondayJul 6Overcast——76°60°-4°
- TuesdayJul 7Overcast——80°56°+4°
- WednesdayJul 8Overcast17%—81°61°+1°
- ThursdayJul 9Thunderstorm48%0.05″76°64°-5°
- FridayJul 10Overcast35%—76°59°0°
AQI 32 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 39. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 39. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 39
- UV peak
- 6.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 16
PM × Wind × Precip
PM2.5 at 4.8 µg/m³ (AQI 27) with a 0.77 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.77
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 10:52 PM
- Moonset
- 9:56 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Lyons at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: May 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Lyons
- Sat82°67°54%
- Sun80°63°15%
- Mon76°60°1%
- Tue80°56°1%
- Wed81°61°17%
- Thu76°64°48%
- Fri76°59°35%
- Sat81°60°9%
- Sun66°58°11%
- Mon74°55°9%
- Tue76°59°9%
- Wed79°62°29%
- Thu83°66°14%
- Fri83°68°26%
- Sat85°69°27%
- Sun85°68°32%
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 — Lyons
SPC includes Lyons in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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 Lyons
- 53105
- 53148