Fennimore, WI Weather & Growing Conditions
Overnight
52°F
Cloudy
Cloudy. Low around 52, with temperatures rising to around 55 overnight. South wind around 10 mph, with gusts as high as 20 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Cloudy | 10 mph S | 10% |
| Wednesday | 56°F | Chance Rain Showers | 12 to 15 mph SW | 44% |
| Wednesday Night | 44°F | Chance Rain Showers | 10 to 15 mph SW | 50% |
| Thursday | 52°F | Rain Showers | 12 mph NW | 75% |
| Thursday Night | 37°F | Mostly Cloudy | 7 to 12 mph N | 14% |
| Friday | 48°F | Partly Sunny | 5 to 10 mph N | 0% |
| Friday Night | 28°F | Mostly Clear | 2 mph N | 0% |
| Saturday | 50°F | Sunny | 0 to 6 mph NW | 0% |
| Saturday Night | 33°F | Mostly Clear | 3 mph W | 2% |
| Sunday | 55°F | Sunny | 3 to 9 mph W | 4% |
| Sunday Night | 34°F | Mostly Clear | 3 mph SW | 0% |
| Monday | 60°F | Mostly Sunny | 2 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 2 to 7 mph W | 0% |
| Tuesday | 59°F | Sunny | 2 to 6 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fennimore, WI
Last spring frost
Apr 27
First fall frost
Oct 11
Growing season
166 days
Hardiness zone
5a
Explore more for Fennimore, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Lancaster 4 Wsw, Wi (11.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.