Lewis, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Lewis weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Foggy36%—83°60°—
- SundayJul 5Drizzle21%0.04″82°63°-1°
- MondayJul 6Overcast10%—85°63°+3°
- TuesdayJul 7Thunderstorm33%0.46″86°65°+1°
- WednesdayJul 8Rain61%0.67″72°60°-14°
- ThursdayJul 9Light Drizzle56%—79°56°+7°
- FridayJul 10Heavy Drizzle11%0.11″70°56°-9°
AQI 45 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 10.2 µg/m³, PM10 at 13.5 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 partly cloudy skies. Levels should ease through evening.
- Present
- AQI 44
- UV peak
- 2.6 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 44
PM × Wind × Precip
PM2.5 at 10.2 µg/m³, PM10 at 13.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.76
- 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
- 11:13 PM
- Moonset
- 10:09 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Lewis at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: May 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Lewis
- Sat82°60°36%
- Sun82°62°21%
- Mon85°63°10%
- Tue86°65°33%
- Wed72°60°61%
- Thu79°56°56%
- Fri70°56°11%
- Sat77°52°12%
- Sun79°55°15%
- Mon80°57°8%
- Tue83°60°8%
- Wed83°65°14%
- Thu84°65°16%
- Fri74°60°26%
- Sat67°58°18%
- Sun81°56°14%
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 — Lewis
SPC includes Lewis 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 Lewis
- 54837