Lewis, WI Weather & Growing Conditions
Today
75°F
Mostly Sunny
Mostly sunny, with a high near 75. West northwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Mostly Sunny | 10 mph WNW | 1% |
| Tonight | 51°F | Partly Cloudy | 0 to 10 mph W | 1% |
| Wednesday | 79°F | Sunny | 0 to 10 mph WSW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Thursday | 83°F | Sunny | 5 to 15 mph SSW | 3% |
| Thursday Night | 62°F | Mostly Clear | 10 mph SSW | 5% |
| Friday | 86°F | Sunny | 10 mph SSW | 13% |
| Friday Night | 61°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 32% |
| Saturday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 15% |
| Saturday Night | 61°F | Chance Showers And Thunderstorms | 5 mph WNW | 54% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 5 mph WSW | 48% |
| Sunday Night | 61°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 16% |
| Monday | 81°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 21% |
| Monday Night | 60°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lewis, WI
Last spring frost
May 6
First fall frost
Oct 4
Growing season
149 days
Hardiness zone
4b
Explore more for Lewis, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Luck, Wi (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.