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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
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.