Harman US

Lacona, IA Weather & Growing Conditions

This Afternoon
84°F
Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 3pm and 4pm, then a slight chance of showers and thunderstorms. Partly sunny. High near 84, with temperatures falling to around 81 in the afternoon. West southwest wind around 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 84°F Slight Chance Showers And Thunderstorms 9 mph WSW 21%
Tonight 63°F Chance Showers And Thunderstorms then Showers And Thunderstorms 3 to 8 mph NNW 78%
Sunday 66°F Chance Showers And Thunderstorms then Chance Drizzle 8 to 12 mph NNE 43%
Sunday Night 57°F Rain Showers Likely 12 mph NE 64%
Monday 60°F Rain Showers Likely 12 mph NE 64%
Monday Night 52°F Rain Showers Likely 10 mph NE 58%
Tuesday 59°F Partly Sunny 9 mph NE 14%
Tuesday Night 47°F Partly Cloudy 3 to 7 mph ENE 3%
Wednesday 63°F Mostly Sunny 5 mph ENE 2%
Wednesday Night 52°F Partly Cloudy 3 mph E 4%
Thursday 65°F Slight Chance Rain Showers 5 mph ESE 20%
Thursday Night 56°F Mostly Cloudy 3 mph ESE 9%
Friday 67°F Partly Sunny 6 mph ESE 10%
Friday Night 57°F Mostly Cloudy 5 mph ESE 9%

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

Growing snapshot for Lacona, IA

Last spring frost
Apr 24
First fall frost
Oct 12
Growing season
168 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Indianola 2W, Ia (14.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.