Trego, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trego, a community in Washburn County, Wisconsin.
Overnight
62°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. Low around 62, with temperatures rising to around 64 overnight. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Trego
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Showers And Thunderstorms Likely | 10 mph SW | 63% |
| Tuesday | 77°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph NW | 37% |
| Tuesday Night | 50°F | Partly Cloudy | 0 to 5 mph NW | 2% |
| Wednesday | 78°F | Sunny | 0 to 10 mph W | 0% |
| Wednesday Night | 54°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 83°F | Sunny | 5 to 15 mph SW | 3% |
| Thursday Night | 61°F | Mostly Clear | 5 to 10 mph SW | 6% |
| Friday | 86°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Friday Night | 59°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 10 mph SW | 29% |
| Saturday | 83°F | Mostly Sunny | 0 to 10 mph SW | 14% |
| Saturday Night | 60°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 49% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 40% |
| Sunday Night | 58°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 18% |
| Monday | 81°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 20% |
Forecast source: National Weather Service (api.weather.gov) for Trego (45.906, -91.831). Updated through the day.
Growing snapshot for Trego
Last spring frost
May 10
First fall frost
Oct 4
Growing season
144 days
Hardiness zone
4a
More local growing data for Trego: nearby ZIP 54888 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Minong 5 Wsw, Wi (6.4 mi from Trego). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.