Kewaunee, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kewaunee, a city in Kewaunee County, Wisconsin.
Tonight
56°F
Rain Showers
Rain showers likely before 9pm, then rain showers and areas of fog. Cloudy, with a low around 56. South southeast wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Kewaunee
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Rain Showers | 14 mph SSE | 77% |
| Wednesday | 61°F | Rain Showers | 14 to 17 mph S | 82% |
| Wednesday Night | 46°F | Cloudy then Rain Showers Likely | 14 mph SSW | 58% |
| Thursday | 54°F | Rain Showers | 9 to 14 mph W | 91% |
| Thursday Night | 37°F | Rain Showers Likely | 15 to 20 mph N | 60% |
| Friday | 47°F | Chance Rain Showers | 15 to 20 mph N | 36% |
| Friday Night | 35°F | Mostly Cloudy | 7 to 14 mph N | 9% |
| Saturday | 48°F | Mostly Sunny | 7 mph WNW | 4% |
| Saturday Night | 36°F | Partly Cloudy | 5 to 8 mph WSW | 8% |
| Sunday | 54°F | Mostly Sunny | 8 to 12 mph W | 13% |
| Sunday Night | 37°F | Partly Cloudy | 10 mph WNW | 8% |
| Monday | 54°F | Mostly Sunny | 8 to 14 mph WSW | 3% |
| Monday Night | 41°F | Partly Cloudy | 12 mph W | 1% |
| Tuesday | 54°F | Mostly Sunny | 9 to 13 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Kewaunee (44.464, -87.522). Updated through the day.
Growing snapshot for Kewaunee
Last spring frost
May 1
First fall frost
Oct 18
Growing season
168 days
Hardiness zone
5b
More local growing data for Kewaunee: nearby ZIP 54216 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Kewaunee, Wi (3.6 mi from Kewaunee). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.