Lewis, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lewis, a community in Burnett County, Wisconsin.
Overnight
63°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. Low around 63, with temperatures rising to around 67 overnight. West wind around 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lewis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Chance Showers And Thunderstorms | 15 mph W | 46% |
| Tuesday | 76°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 mph NW | 24% |
| Tuesday Night | 52°F | Partly Cloudy | 0 to 10 mph W | 1% |
| Wednesday | 78°F | Sunny | 0 to 10 mph WSW | 0% |
| Wednesday Night | 56°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 84°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 | 30% |
| 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 | 0 to 5 mph WNW | 53% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 0 to 5 mph WSW | 48% |
| Sunday Night | 60°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 | 20% |
Forecast source: National Weather Service (api.weather.gov) for Lewis (45.722, -92.392). Updated through the day.
Growing snapshot for Lewis
Last spring frost
May 11
First fall frost
Oct 1
Growing season
141 days
Hardiness zone
4b
More local growing data for Lewis: nearby ZIP 54872 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grantsburg, Wi (14.3 mi from Lewis). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.