Leon, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Leon, a city in Decatur County, Iowa.
Overnight
66°F
Partly Cloudy
Partly cloudy, with a low around 66. South southeast wind around 6 mph.
7-day forecast for Leon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Partly Cloudy | 6 mph SSE | 1% |
| Tuesday | 88°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 6 mph SSW | 18% |
| Tuesday Night | 65°F | Showers And Thunderstorms Likely | 8 mph NE | 63% |
| Wednesday | 76°F | Showers And Thunderstorms Likely | 8 mph NE | 76% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 3 to 9 mph NE | 54% |
| Thursday | 82°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 mph ENE | 33% |
| Thursday Night | 63°F | Mostly Clear | 3 mph ESE | 3% |
| Friday | 86°F | Sunny | 6 mph S | 6% |
| Friday Night | 67°F | Mostly Clear | 6 mph S | 13% |
| Saturday | 90°F | Sunny | 5 to 10 mph S | 4% |
| Saturday Night | 72°F | Mostly Clear | 13 mph S | 9% |
| Sunday | 92°F | Mostly Sunny | 10 to 14 mph SSW | 9% |
| Sunday Night | 72°F | Partly Cloudy | 10 to 14 mph S | 14% |
| Monday | 92°F | Mostly Sunny | 12 to 16 mph SSW | 14% |
Forecast source: National Weather Service (api.weather.gov) for Leon (40.741, -93.756). Updated through the day.
Growing snapshot for Leon
Last spring frost
Apr 30
First fall frost
Oct 8
Growing season
161 days
Hardiness zone
5b
More local growing data for Leon: nearby ZIP 50144 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Leon 6 Ese, Ia (4.9 mi from Leon). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.