Lacona, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lacona, a city in Warren County, Iowa.
Tonight
47°F
Cloudy
Cloudy, with a low around 47. West wind around 13 mph, with gusts as high as 20 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lacona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Cloudy | 13 mph W | 14% |
| Wednesday | 54°F | Mostly Cloudy | 13 to 16 mph W | 13% |
| Wednesday Night | 43°F | Mostly Cloudy | 12 mph W | 7% |
| Thursday | 53°F | Chance Rain Showers | 12 mph WNW | 39% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Mostly Cloudy | 8 mph NNW | 16% |
| Friday | 52°F | Partly Sunny | 3 to 8 mph N | 5% |
| Friday Night | 34°F | Partly Cloudy | 2 mph N | 0% |
| Saturday | 56°F | Partly Sunny | 1 to 5 mph WSW | 3% |
| Saturday Night | 37°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 63°F | Sunny | 6 mph W | 5% |
| Sunday Night | 39°F | Mostly Clear | 6 mph SW | 1% |
| Monday | 66°F | Sunny | 6 to 12 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 6 mph W | 0% |
| Tuesday | 65°F | Sunny | 6 mph NNW | 0% |
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 Nov 4, 2026.