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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.

Tonight
60°F
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms
A slight chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and 10pm, then a chance of showers and thunderstorms between 10pm and midnight, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 60. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

7-day forecast for Cobb

WhenTempForecastWindPrecip
Tonight 60°F Slight Chance Showers And Thunderstorms then Showers And Thunderstorms 10 to 15 mph E 95%
Saturday 74°F Showers And Thunderstorms 10 mph SE 82%
Saturday Night 58°F Showers And Thunderstorms 10 mph NE 80%
Sunday 66°F Chance Rain Showers 10 to 15 mph NE 43%
Sunday Night 53°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph NE 18%
Monday 62°F Chance Rain Showers 15 mph NE 37%
Monday Night 48°F Chance Rain Showers 10 to 15 mph NE 37%
Tuesday 61°F Chance Rain Showers then Partly Sunny 10 mph NE 31%
Tuesday Night 45°F Partly Cloudy 5 to 10 mph NE 8%
Wednesday 65°F Mostly Sunny 5 mph NE 4%
Wednesday Night 49°F Partly Cloudy 0 to 5 mph NE 2%
Thursday 67°F Mostly Sunny 0 to 5 mph NE 5%
Thursday Night 51°F Partly Cloudy 0 mph 5%
Friday 69°F Mostly Sunny 0 to 5 mph NE 3%

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 19, 2026.