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Dedham, IA Weather & Growing Conditions

Today
78°F
Patchy Fog then Slight Chance Showers And Thunderstorms
Patchy fog and a chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms between 10am and 5pm. Mostly cloudy. High near 78, with temperatures falling to around 74 in the afternoon. North northwest wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 78°F Patchy Fog then Slight Chance Showers And Thunderstorms 7 mph NNW 34%
Tonight 60°F Slight Chance Showers And Thunderstorms 9 mph N 28%
Sunday 65°F Chance Drizzle then Chance Rain Showers 8 to 12 mph NNE 51%
Sunday Night 55°F Chance Rain Showers 9 mph NE 46%
Monday 61°F Rain Showers Likely 9 mph ENE 59%
Monday Night 50°F Chance Rain Showers 3 to 8 mph ENE 47%
Tuesday 61°F Partly Sunny 3 to 7 mph ENE 7%
Tuesday Night 45°F Partly Cloudy 1 to 5 mph E 1%
Wednesday 65°F Mostly Sunny 1 to 5 mph ESE 1%
Wednesday Night 50°F Partly Cloudy 2 mph SE 13%
Thursday 66°F Slight Chance Rain Showers 1 to 5 mph SE 19%
Thursday Night 55°F Mostly Cloudy 3 mph SE 10%
Friday 68°F Mostly Cloudy 1 to 6 mph ESE 12%
Friday Night 55°F Mostly Cloudy 3 mph SE 13%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Dedham, IA

Last spring frost
Apr 27
First fall frost
Oct 10
Growing season
166 days
Hardiness zone
5a

Explore more for Dedham, IA: full frost dates · planting calendar · Iowa frost dates

Climate data from the nearest NOAA station, Carroll, Ia (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.