Harman US

Harris, IA Weather & Growing Conditions

Overnight
40°F
Rain Showers Likely
Rain showers likely. Cloudy, with a low around 40. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 40°F Rain Showers Likely 15 mph NW 67%
Wednesday 45°F Rain Showers Likely 15 mph WNW 65%
Wednesday Night 38°F Rain Showers Likely 15 mph NW 56%
Thursday 45°F Mostly Cloudy 15 mph NNW 6%
Thursday Night 32°F Mostly Cloudy 5 to 10 mph N 0%
Friday 44°F Mostly Sunny 0 to 5 mph NE 0%
Friday Night 28°F Partly Cloudy 0 to 5 mph SSE 0%
Saturday 49°F Mostly Sunny 5 to 10 mph SW 1%
Saturday Night 34°F Mostly Clear 5 mph W 0%
Sunday 54°F Sunny 5 to 10 mph WSW 0%
Sunday Night 37°F Mostly Clear 5 to 10 mph SW 0%
Monday 59°F Sunny 10 mph WSW 0%
Monday Night 38°F Mostly Clear 5 to 10 mph NW 0%
Tuesday 57°F Mostly Sunny 5 mph WNW 0%

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

Growing snapshot for Harris, IA

Last spring frost
Apr 30
First fall frost
Oct 10
Growing season
164 days
Hardiness zone
5a

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

Climate data from the nearest NOAA station, Lake Park, Ia (5.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.