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Cobb, WI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Cobb, a village in Iowa County, Wisconsin.

This Afternoon
69°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy, with a high near 69. East wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast for Cobb

WhenTempForecastWindPrecip
This Afternoon 69°F Chance Showers And Thunderstorms 5 mph E 37%
Tonight 58°F Chance Showers And Thunderstorms 5 to 10 mph NE 62%
Sunday 64°F Scattered Rain Showers then Cloudy 10 to 15 mph NE 32%
Sunday Night 52°F Mostly Cloudy 15 mph NE 3%
Monday 62°F Chance Rain Showers 10 to 15 mph NE 36%
Monday Night 48°F Chance Rain Showers 10 mph NE 36%
Tuesday 61°F Slight Chance Rain Showers 10 mph NE 22%
Tuesday Night 46°F Partly Cloudy 5 to 10 mph NE 5%
Wednesday 64°F Mostly Sunny 5 to 10 mph NE 3%
Wednesday Night 49°F Partly Cloudy 0 to 5 mph NE 0%
Thursday 67°F Partly Sunny 0 to 5 mph E 8%
Thursday Night 52°F Mostly Cloudy 0 to 5 mph E 9%
Friday 70°F Partly Sunny 0 to 5 mph NE 4%
Friday Night 52°F Partly Cloudy 0 mph 4%

Forecast source: National Weather Service (api.weather.gov) for Cobb (42.967, -90.328). Updated through the day.

Growing snapshot for Cobb

Last spring frost
May 3
First fall frost
Oct 7
Growing season
157 days
Hardiness zone
5a

More local growing data for Cobb: nearby ZIP 53526 weather · frost dates · planting calendar · Wisconsin frost dates

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Climate data from the nearest NOAA station, Dodgeville Wwtp, Wi (11.6 mi from Cobb). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.