Tustin, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tustin, a community in Waushara County, Wisconsin.
Today
83°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 83, with temperatures falling to around 80 in the afternoon. Heat index values as high as 86. Southwest wind 8 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
7-day forecast for Tustin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 8 to 12 mph SW | 30% |
| Tonight | 61°F | Chance Showers And Thunderstorms | 3 to 7 mph WNW | 49% |
| Wednesday | 78°F | Chance Rain Showers | 3 mph WSW | 11% |
| Wednesday Night | 57°F | Slight Chance Rain Showers | 3 mph WNW | 7% |
| Thursday | 82°F | Patchy Fog then Sunny | 3 mph SW | 2% |
| Thursday Night | 60°F | Mostly Clear | 5 mph SSW | 0% |
| Friday | 85°F | Sunny | 3 to 10 mph SW | 2% |
| Friday Night | 64°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 6 to 9 mph SW | 15% |
| Saturday | 85°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph SW | 15% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 8 mph SW | 38% |
| Sunday | 86°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 9 mph W | 38% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 3 to 8 mph W | 47% |
| Monday | 81°F | Chance Rain Showers | 2 to 7 mph SSW | 34% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 6 mph N | 39% |
Forecast source: National Weather Service (api.weather.gov) for Tustin (44.170, -88.896). Updated through the day.
Growing snapshot for Tustin
Last spring frost
May 4
First fall frost
Oct 6
Growing season
153 days
Hardiness zone
5a
More local growing data for Tustin: nearby ZIP 54940 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Berlin
Coloma
Fremont
Hancock
Lohrville
Pine River
Plainfield
Poy Sippi
Redgranite
Wautoma
Wild Rose
Climate data from the nearest NOAA station, New London, Wi (11.3 mi from Tustin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.