Harman US

Whitten, IA Weather & Growing Conditions

Overnight
45°F
Chance Rain Showers
A chance of rain showers. Cloudy. Low around 45, with temperatures rising to around 47 overnight. West wind around 13 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 45°F Chance Rain Showers 13 mph W 27%
Wednesday 51°F Chance Rain Showers 14 to 17 mph W 31%
Wednesday Night 43°F Cloudy then Slight Chance Rain Showers 13 mph W 22%
Thursday 53°F Chance Rain Showers then Mostly Cloudy 13 mph NW 50%
Thursday Night 37°F Mostly Cloudy 6 to 9 mph N 12%
Friday 48°F Mostly Sunny 3 to 7 mph N 3%
Friday Night 28°F Partly Cloudy 2 mph N 0%
Saturday 52°F Mostly Sunny 0 to 3 mph WSW 0%
Saturday Night 34°F Mostly Clear 3 mph W 1%
Sunday 57°F Sunny 6 mph W 2%
Sunday Night 35°F Clear 3 mph SW 0%
Monday 63°F Sunny 3 to 9 mph SW 0%
Monday Night 39°F Mostly Clear 5 mph WNW 0%
Tuesday 62°F Sunny 3 mph NW 0%

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

Growing snapshot for Whitten, IA

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

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

Climate data from the nearest NOAA station, Eldora, Ia (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.