Bonaparte, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonaparte, a city in Van Buren County, Iowa.
Overnight
70°F
Patchy Fog
Patchy fog. Mostly cloudy. Low around 70, with temperatures rising to around 72 overnight. South wind around 5 mph.
7-day forecast for Bonaparte
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Patchy Fog | 5 mph S | 14% |
| Saturday | 86°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 21% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 5 mph NW | 73% |
| Sunday | 73°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph N | 75% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph NE | 65% |
| Monday | 64°F | Showers And Thunderstorms Likely | 10 mph NE | 65% |
| Monday Night | 54°F | Chance Rain Showers | 5 to 10 mph NE | 47% |
| Tuesday | 62°F | Chance Rain Showers | 5 to 10 mph NE | 41% |
| Tuesday Night | 48°F | Partly Cloudy | 0 to 5 mph NE | 4% |
| Wednesday | 66°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Thursday | 70°F | Partly Sunny | 0 to 5 mph NE | 7% |
| Thursday Night | 56°F | Mostly Cloudy | 0 mph | 4% |
| Friday | 72°F | Partly Sunny | 0 to 5 mph E | 5% |
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 Sep 19, 2026.