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Fennimore, WI Weather & Growing Conditions

Today
71°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. High near 71, with temperatures falling to around 69 in the afternoon. South wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

7-day forecast

WhenTempForecastWindPrecip
Today 71°F Showers And Thunderstorms 8 mph S 91%
Tonight 58°F Showers And Thunderstorms 6 to 12 mph NE 80%
Sunday 65°F Chance Rain Showers 14 mph NE 45%
Sunday Night 52°F Mostly Cloudy 15 mph NE 13%
Monday 62°F Mostly Cloudy 14 mph NE 13%
Monday Night 47°F Mostly Cloudy then Slight Chance Rain Showers 7 to 12 mph NE 16%
Tuesday 61°F Slight Chance Rain Showers then Partly Sunny 7 to 12 mph NE 16%
Tuesday Night 44°F Partly Cloudy 3 to 8 mph NE 3%
Wednesday 65°F Mostly Sunny 5 to 9 mph NE 2%
Wednesday Night 48°F Partly Cloudy 5 mph NE 2%
Thursday 66°F Mostly Sunny 6 mph NE 4%
Thursday Night 50°F Partly Cloudy 3 mph E 2%
Friday 70°F Mostly Sunny 2 to 7 mph E 2%
Friday Night 51°F Partly Cloudy 3 mph E 3%

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 Sep 19, 2026.