Kewaunee, WI Weather & Growing Conditions
Today
83°F
Partly Sunny then Chance Showers And Thunderstorms
A slight chance of rain showers between 2pm and 4pm, then a chance of showers and thunderstorms. Partly sunny. High near 83, with temperatures falling to around 80 in the afternoon. Heat index values as high as 87. South southwest wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 14 mph SSW | 47% |
| Tonight | 62°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 69% |
| Wednesday | 76°F | Chance Showers And Thunderstorms then Mostly Cloudy | 6 mph N | 45% |
| Wednesday Night | 57°F | Mostly Cloudy | 1 to 6 mph SSW | 2% |
| Thursday | 79°F | Sunny | 1 to 8 mph SSW | 0% |
| Thursday Night | 59°F | Mostly Clear | 3 to 8 mph SSW | 0% |
| Friday | 81°F | Sunny | 5 to 14 mph SSW | 2% |
| Friday Night | 64°F | Mostly Clear | 8 to 12 mph SSW | 9% |
| Saturday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 8 to 12 mph SW | 16% |
| Saturday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 to 10 mph SSW | 43% |
| Sunday | 83°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 to 10 mph WSW | 43% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 5 to 9 mph WSW | 46% |
| Monday | 80°F | Chance Showers And Thunderstorms | 7 mph SW | 33% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 7 mph NNE | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Kewaunee, WI
Last spring frost
May 1
First fall frost
Oct 18
Growing season
168 days
Hardiness zone
5b
Explore more for Kewaunee, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Kewaunee, Wi (3.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.