Fennimore, WI Weather & Growing Conditions
Today
80°F
Isolated Rain Showers then Isolated Showers And Thunderstorms
Isolated rain showers between 9am and 11am, then isolated showers and thunderstorms between 4pm and 5pm, then scattered showers and thunderstorms. Mostly cloudy. High near 80, with temperatures falling to around 74 in the afternoon. Southwest wind 8 to 12 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 |
|---|---|---|---|---|
| Today | 80°F | Isolated Rain Showers then Isolated Showers And Thunderstorms | 8 to 12 mph SW | 27% |
| Tonight | 62°F | Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 7 mph NW | 60% |
| Wednesday | 75°F | Scattered Showers And Thunderstorms then Partly Sunny | 5 mph NW | 28% |
| Wednesday Night | 55°F | Partly Cloudy | 3 mph NW | 12% |
| Thursday | 79°F | Sunny | 3 mph E | 6% |
| Thursday Night | 59°F | Mostly Clear | 2 mph S | 0% |
| Friday | 81°F | Sunny | 3 to 9 mph S | 4% |
| Friday Night | 63°F | Mostly Clear | 7 mph S | 8% |
| Saturday | 82°F | Mostly Sunny | 6 to 10 mph SW | 9% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 9 mph S | 32% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 9 to 13 mph SW | 32% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms | 5 to 9 mph S | 45% |
| Monday | 82°F | Chance Rain Showers | 6 to 9 mph S | 45% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 6 to 9 mph N | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fennimore, WI
Last spring frost
May 3
First fall frost
Oct 7
Growing season
155 days
Hardiness zone
5a
Explore more for Fennimore, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Boscobel Ap, Wi (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.