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Fennimore, WI Weather & Growing Conditions

This Afternoon
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. High near 71, with temperatures falling to around 68 in the afternoon. Southeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 71°F Chance Showers And Thunderstorms 6 mph SE 54%
Tonight 58°F Showers And Thunderstorms Likely 5 to 12 mph NE 63%
Sunday 68°F Chance Rain Showers then Mostly Cloudy 15 mph NE 28%
Sunday Night 52°F Mostly Cloudy 14 mph NE 11%
Monday 62°F Chance Rain Showers 14 mph NE 45%
Monday Night 48°F Chance Rain Showers 8 to 12 mph NE 45%
Tuesday 61°F Slight Chance Rain Showers then Partly Sunny 8 to 12 mph NE 20%
Tuesday Night 46°F Partly Cloudy 5 to 8 mph NE 4%
Wednesday 64°F Mostly Sunny 6 to 9 mph NE 2%
Wednesday Night 50°F Partly Cloudy 2 to 6 mph NE 0%
Thursday 67°F Partly Sunny 5 mph E 9%
Thursday Night 53°F Mostly Cloudy 3 mph E 9%
Friday 70°F Partly Sunny 5 mph NE 3%
Friday Night 54°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.