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Arena, WI Weather & Growing Conditions

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

Today
70°F
Showers And Thunderstorms
Showers and thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 11am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 70. East wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.

7-day forecast for Arena

WhenTempForecastWindPrecip
Today 70°F Showers And Thunderstorms 5 mph E 99%
Tonight 58°F Showers And Thunderstorms Likely 5 to 10 mph NE 74%
Sunday 66°F Chance Rain Showers then Cloudy 10 to 15 mph NE 43%
Sunday Night 50°F Mostly Cloudy 10 to 15 mph NE 9%
Monday 62°F Mostly Cloudy 10 mph NE 10%
Monday Night 46°F Mostly Cloudy 5 to 10 mph NE 9%
Tuesday 62°F Partly Sunny 5 to 10 mph NE 9%
Tuesday Night 45°F Partly Cloudy 0 to 10 mph NE 3%
Wednesday 65°F Mostly Sunny 5 to 10 mph NE 1%
Wednesday Night 48°F Partly Cloudy 0 to 5 mph NE 1%
Thursday 67°F Mostly Sunny 0 to 5 mph NE 3%
Thursday Night 49°F Partly Cloudy 0 to 5 mph NE 2%
Friday 71°F Mostly Sunny 0 to 5 mph NE 3%
Friday Night 49°F Partly Cloudy 0 to 5 mph NE 2%

Forecast source: National Weather Service (api.weather.gov) for Arena (43.164, -89.907). Updated through the day.

Growing snapshot for Arena

Last spring frost
May 7
First fall frost
Oct 1
Growing season
148 days
Hardiness zone
5a

More local growing data for Arena: nearby ZIP 53503 weather · frost dates · planting calendar · Wisconsin frost dates

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Climate data from the nearest NOAA station, Mazomanie Wwtp, Wi (7.2 mi from Arena). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.