Harman US

Dunkerton, IA Weather & Growing Conditions

Tonight
49°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. Low around 49, with temperatures rising to around 53 overnight. South wind around 12 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 49°F Showers And Thunderstorms Likely 12 mph S 57%
Wednesday 53°F Chance Rain Showers 13 to 18 mph WSW 48%
Wednesday Night 44°F Rain Showers Likely 16 mph WSW 67%
Thursday 51°F Rain Showers Likely 14 mph NW 73%
Thursday Night 38°F Slight Chance Rain Showers then Mostly Cloudy 13 mph N 15%
Friday 49°F Partly Sunny 6 to 12 mph N 2%
Friday Night 32°F Partly Cloudy 1 to 5 mph NNW 0%
Saturday 52°F Mostly Sunny 1 to 7 mph WSW 2%
Saturday Night 35°F Mostly Clear 6 mph W 4%
Sunday 58°F Sunny 6 to 10 mph WNW 9%
Sunday Night 37°F Mostly Clear 7 mph SW 1%
Monday 60°F Sunny 7 to 13 mph SW 0%
Monday Night 40°F Mostly Clear 8 mph WNW 0%
Tuesday 59°F Sunny 8 mph WNW 1%

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

Growing snapshot for Dunkerton, IA

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

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

Climate data from the nearest NOAA station, Waterloo Muni Ap, Ia (11.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.