Colby, WI Weather & Growing Conditions
Overnight
52°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy, with a low around 52. East wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Showers And Thunderstorms Likely | 12 mph E | 68% |
| Saturday | 62°F | Rain Showers Likely | 9 to 14 mph E | 70% |
| Saturday Night | 48°F | Rain Showers Likely then Mostly Cloudy | 6 to 9 mph NE | 55% |
| Sunday | 67°F | Partly Sunny | 9 to 13 mph NE | 9% |
| Sunday Night | 41°F | Mostly Cloudy | 8 mph ENE | 1% |
| Monday | 62°F | Mostly Cloudy | 8 to 12 mph ENE | 3% |
| Monday Night | 39°F | Mostly Cloudy | 6 mph ENE | 3% |
| Tuesday | 62°F | Mostly Sunny | 6 to 9 mph ENE | 4% |
| Tuesday Night | 39°F | Partly Cloudy | 5 mph E | 3% |
| Wednesday | 65°F | Mostly Sunny | 7 mph E | 1% |
| Wednesday Night | 42°F | Patchy Fog | 3 mph ESE | 2% |
| Thursday | 68°F | Mostly Sunny | 3 mph SSE | 9% |
| Thursday Night | 45°F | Partly Cloudy | 2 mph SSW | 8% |
| Friday | 70°F | Mostly Sunny | 1 to 5 mph WNW | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Colby, WI
Last spring frost
May 13
First fall frost
Sep 26
Growing season
136 days
Hardiness zone
4b
Explore more for Colby, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Owen 1E, Wi (13.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.