Harman US

Runnells, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Runnells, a city in Polk County, Iowa.

Overnight
70°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. West wind around 2 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Runnells

WhenTempForecastWindPrecip
Overnight 70°F Chance Showers And Thunderstorms 2 mph W 37%
Saturday 82°F Chance Showers And Thunderstorms 3 to 9 mph WSW 51%
Saturday Night 63°F Chance Showers And Thunderstorms 9 mph N 48%
Sunday 67°F Chance Rain Showers then Slight Chance Showers And Thunderstorms 8 to 13 mph NNE 46%
Sunday Night 58°F Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 10 to 14 mph NE 60%
Monday 63°F Rain Showers Likely 13 mph NE 60%
Monday Night 53°F Rain Showers Likely 8 to 12 mph NE 60%
Tuesday 61°F Partly Sunny 9 mph NE 12%
Tuesday Night 48°F Partly Cloudy 3 to 8 mph ENE 2%
Wednesday 65°F Sunny 6 mph ENE 2%
Wednesday Night 53°F Partly Cloudy 5 mph E 4%
Thursday 67°F Slight Chance Rain Showers 5 mph ESE 19%
Thursday Night 57°F Mostly Cloudy 3 mph E 8%
Friday 69°F Partly Sunny 2 to 6 mph E 8%

Forecast source: National Weather Service (api.weather.gov) for Runnells (41.514, -93.360). Updated through the day.

Growing snapshot for Runnells

Last spring frost
Apr 21
First fall frost
Oct 15
Growing season
174 days
Hardiness zone
5b

More local growing data for Runnells: nearby ZIP 50237 weather · frost dates · planting calendar · Iowa frost dates

Nearby towns & communities

All Iowa locations ›

Climate data from the nearest NOAA station, Des Moines 17 E, Ia (4.5 mi from Runnells). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.