Bonaparte, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonaparte, a city in Van Buren County, Iowa.
This Afternoon
54°F
Slight Chance Drizzle
A slight chance of drizzle after 5pm. Cloudy. High near 54, with temperatures falling to around 52 in the afternoon. West wind around 10 mph, with gusts as high as 20 mph.
7-day forecast for Bonaparte
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 54°F | Slight Chance Drizzle | 10 mph W | 10% |
| Tonight | 46°F | Slight Chance Drizzle | 5 mph W | 13% |
| Thursday | 53°F | Chance Rain Showers | 5 to 10 mph W | 31% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Cloudy | 5 mph N | 17% |
| Friday | 48°F | Mostly Sunny | 5 mph N | 2% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 51°F | Mostly Sunny | 0 mph | 0% |
| Saturday Night | 33°F | Mostly Clear | 0 mph | 0% |
| Sunday | 60°F | Sunny | 0 to 5 mph W | 0% |
| Sunday Night | 36°F | Clear | 0 mph | 0% |
| Monday | 65°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 41°F | Clear | 0 to 5 mph W | 0% |
| Tuesday | 64°F | Sunny | 0 mph | 2% |
| Tuesday Night | 41°F | Partly Cloudy | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for Bonaparte (40.701, -91.801). Updated through the day.
Growing snapshot for Bonaparte
Last spring frost
Apr 26
First fall frost
Oct 13
Growing season
169 days
Hardiness zone
6a
More local growing data for Bonaparte: nearby ZIP 52620 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Keosauqua, Ia (9.3 mi from Bonaparte). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.