Westby, WI Weather & Growing Conditions
Overnight
53°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. Low around 53, with temperatures rising to around 55 overnight. South wind around 9 mph, with gusts as high as 20 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 |
|---|---|---|---|---|
| Overnight | 53°F | Chance Rain Showers | 9 mph S | 26% |
| Wednesday | 58°F | Rain Showers | 9 to 14 mph S | 80% |
| Wednesday Night | 44°F | Rain Showers | 9 to 13 mph SW | 80% |
| Thursday | 53°F | Rain Showers Likely | 8 to 14 mph NW | 62% |
| Thursday Night | 34°F | Mostly Cloudy | 7 to 12 mph N | 9% |
| Friday | 48°F | Mostly Sunny | 3 to 8 mph N | 0% |
| Friday Night | 27°F | Mostly Clear | 2 mph N | 0% |
| Saturday | 50°F | Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 33°F | Mostly Clear | 5 mph W | 3% |
| Sunday | 55°F | Sunny | 5 to 9 mph W | 6% |
| Sunday Night | 34°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 61°F | Mostly Sunny | 3 to 10 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 3 to 7 mph W | 0% |
| Tuesday | 59°F | Sunny | 6 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Westby, WI
Last spring frost
Apr 27
First fall frost
Oct 14
Growing season
170 days
Hardiness zone
5a
Explore more for Westby, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Cashton, Wi (6.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.