Thornton, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thornton, a community in Shawano County, Wisconsin.
Overnight
55°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy, with a low around 55. East wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Thornton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Showers And Thunderstorms Likely | 7 mph E | 62% |
| Saturday | 62°F | Showers And Thunderstorms | 9 mph E | 75% |
| Saturday Night | 51°F | Rain Showers Likely then Mostly Cloudy | 8 mph NE | 56% |
| Sunday | 67°F | Mostly Sunny | 8 to 12 mph NE | 2% |
| Sunday Night | 44°F | Mostly Cloudy | 12 mph NE | 0% |
| Monday | 61°F | Mostly Cloudy | 10 mph NE | 1% |
| Monday Night | 40°F | Partly Cloudy | 5 to 8 mph NE | 1% |
| Tuesday | 64°F | Mostly Sunny | 6 to 10 mph NE | 0% |
| Tuesday Night | 41°F | Mostly Clear | 3 to 7 mph NE | 1% |
| Wednesday | 66°F | Sunny | 3 to 9 mph NE | 1% |
| Wednesday Night | 44°F | Patchy Fog | 5 mph NE | 0% |
| Thursday | 68°F | Mostly Sunny | 2 to 6 mph NE | 3% |
| Thursday Night | 44°F | Partly Cloudy | 0 to 3 mph NNE | 2% |
| Friday | 72°F | Mostly Sunny | 5 mph ENE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Thornton (44.799, -88.691). Updated through the day.
Growing snapshot for Thornton
Last spring frost
May 9
First fall frost
Oct 2
Growing season
144 days
Hardiness zone
5a
More local growing data for Thornton: nearby ZIP 54166 weather · frost dates · planting calendar · Wisconsin frost dates
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Shawano
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Climate data from the nearest NOAA station, Shawano 2Ssw, Wi (1.3 mi from Thornton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.