Hewitt, WI Weather & Growing Conditions
Today
78°F
Slight Chance Showers And Thunderstorms then Mostly Cloudy
A slight chance of showers and thunderstorms before 11am. Mostly cloudy, with a high near 78. Heat index values as high as 78. West wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 9 to 13 mph W | 17% |
| Tonight | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 8 mph WNW | 15% |
| Wednesday | 78°F | Mostly Sunny | 3 to 7 mph NNW | 4% |
| Wednesday Night | 52°F | Partly Cloudy | 1 to 6 mph WSW | 0% |
| Thursday | 83°F | Mostly Sunny | 1 to 7 mph SW | 0% |
| Thursday Night | 56°F | Mostly Clear | 6 mph SSW | 0% |
| Friday | 85°F | Sunny then Slight Chance Showers And Thunderstorms | 3 to 14 mph SSW | 19% |
| Friday Night | 62°F | Slight Chance Showers And Thunderstorms | 6 to 12 mph SW | 21% |
| Saturday | 86°F | Slight Chance Showers And Thunderstorms | 6 to 12 mph SW | 15% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 5 to 9 mph WSW | 42% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 6 to 10 mph WNW | 42% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 3 to 9 mph NNW | 39% |
| Monday | 82°F | Chance Showers And Thunderstorms | 5 to 9 mph S | 31% |
| Monday Night | 60°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 31% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hewitt, WI
Last spring frost
May 5
First fall frost
Oct 5
Growing season
150 days
Hardiness zone
4b
Explore more for Hewitt, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Marshfield Exp Farm, Wi (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.