Lacona, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lacona, a city in Warren County, Iowa.
Overnight
70°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lacona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Slight Chance Showers And Thunderstorms | 7 mph S | 24% |
| Saturday | 82°F | Chance Showers And Thunderstorms | 9 mph SW | 46% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 mph NNW | 64% |
| Sunday | 67°F | Chance Rain Showers then Chance Showers And Thunderstorms | 7 to 12 mph NNE | 45% |
| Sunday Night | 58°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 mph NE | 63% |
| Monday | 61°F | Rain Showers Likely | 12 mph NE | 63% |
| Monday Night | 52°F | Rain Showers Likely | 7 to 10 mph NE | 58% |
| Tuesday | 60°F | Slight Chance Rain Showers then Partly Sunny | 9 mph NE | 19% |
| Tuesday Night | 47°F | Partly Cloudy | 6 mph NE | 3% |
| Wednesday | 63°F | Mostly Sunny | 5 mph ENE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph E | 4% |
| Thursday | 66°F | Slight Chance Rain Showers | 3 mph ESE | 19% |
| Thursday Night | 56°F | Mostly Cloudy | 3 mph ESE | 9% |
| Friday | 68°F | Partly Sunny | 2 to 6 mph E | 10% |
Forecast source: National Weather Service (api.weather.gov) for Lacona (41.190, -93.385). Updated through the day.
Growing snapshot for Lacona
Last spring frost
May 5
First fall frost
Oct 5
Growing season
151 days
Hardiness zone
5b
More local growing data for Lacona: nearby ZIP 50139 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Ackworth
Carlisle
Hartford
Indianola
Martensdale
Milo
New Virginia
Norwalk
Sandyville
Spring Hill
St. Marys
Climate data from the nearest NOAA station, Chariton 1 E, Ia (13 mi from Lacona). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.