Trego, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trego, a community in Washburn County, Wisconsin.
This Afternoon
64°F
Light Rain
Rain and patchy fog. Cloudy. High near 64, with temperatures falling to around 60 in the afternoon. North wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Trego
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Light Rain | 5 mph N | 81% |
| Tonight | 52°F | Rain | 5 mph NE | 79% |
| Wednesday | 58°F | Rain Likely | 5 to 10 mph NE | 70% |
| Wednesday Night | 41°F | Light Rain | 5 to 10 mph N | 85% |
| Thursday | 46°F | Light Rain Likely then Mostly Cloudy | 10 to 15 mph N | 58% |
| Thursday Night | 29°F | Mostly Cloudy | 5 to 10 mph NE | 3% |
| Friday | 45°F | Partly Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 25°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 50°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Saturday Night | 30°F | Partly Cloudy | 0 to 5 mph SW | 13% |
| Sunday | 54°F | Slight Chance Light Rain then Mostly Sunny | 5 to 10 mph W | 15% |
| Sunday Night | 31°F | Partly Cloudy | 0 to 5 mph SW | 3% |
| Monday | 56°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 33°F | Mostly Clear | 5 to 10 mph W | 0% |
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 Nov 3, 2026.