Harman US

State Center, IA Weather & Growing Conditions

Today
51°F
Slight Chance Rain Showers
A slight chance of rain showers before 2pm. Cloudy. High near 51, with temperatures falling to around 49 in the afternoon. West wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

7-day forecast

WhenTempForecastWindPrecip
Today 51°F Slight Chance Rain Showers 10 to 15 mph W 19%
Tonight 44°F Cloudy then Slight Chance Rain Showers 13 mph W 22%
Thursday 54°F Rain Showers Likely then Cloudy 12 mph NW 61%
Thursday Night 38°F Mostly Cloudy 6 to 9 mph N 9%
Friday 49°F Mostly Sunny 3 to 8 mph NNE 4%
Friday Night 30°F Partly Cloudy 2 mph N 0%
Saturday 52°F Mostly Sunny 3 mph SW 0%
Saturday Night 35°F Mostly Clear 3 mph W 1%
Sunday 58°F Sunny 6 mph W 1%
Sunday Night 36°F Clear 3 mph SW 0%
Monday 64°F Sunny 3 to 8 mph SW 0%
Monday Night 40°F Mostly Clear 6 mph WNW 0%
Tuesday 63°F Sunny 3 mph NNW 0%
Tuesday Night 42°F Partly Cloudy 2 mph ENE 1%

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

Growing snapshot for State Center, IA

Last spring frost
Apr 24
First fall frost
Oct 12
Growing season
170 days
Hardiness zone
5a

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

Climate data from the nearest NOAA station, Colo, Ia (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.