Hortonville, WI Weather & Growing Conditions
Today
82°F
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between noon and 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then a slight chance of showers and thunderstorms. Partly sunny. High near 82, with temperatures falling to around 79 in the afternoon. Heat index values as high as 85. Southwest wind 7 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 7 to 12 mph SW | 28% |
| Tonight | 61°F | Chance Showers And Thunderstorms | 6 mph WNW | 47% |
| Wednesday | 78°F | Partly Sunny | 3 mph SE | 10% |
| Wednesday Night | 57°F | Slight Chance Rain Showers | 3 mph WSW | 5% |
| Thursday | 81°F | Patchy Fog then Sunny | 3 mph SW | 2% |
| Thursday Night | 61°F | Mostly Clear | 5 mph SSW | 0% |
| Friday | 84°F | Sunny | 3 to 10 mph SW | 2% |
| Friday Night | 65°F | Mostly Clear | 9 mph SSW | 13% |
| Saturday | 84°F | Mostly Sunny | 6 to 9 mph SW | 12% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 3 to 8 mph SSW | 39% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 5 to 8 mph WSW | 39% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 3 to 7 mph WNW | 45% |
| Monday | 81°F | Chance Rain Showers | 5 mph SSE | 35% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 5 mph N | 39% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hortonville, WI
Last spring frost
May 4
First fall frost
Oct 6
Growing season
153 days
Hardiness zone
5a
Explore more for Hortonville, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, New London, Wi (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.