Bonaparte, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonaparte, a city in Van Buren County, Iowa.
Today
90°F
Mostly Sunny
Mostly sunny. High near 90, with temperatures falling to around 88 in the afternoon. South wind around 5 mph.
7-day forecast for Bonaparte
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Mostly Sunny | 5 mph S | 11% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 5 mph NE | 35% |
| Wednesday | 82°F | Chance Showers And Thunderstorms | 5 mph NE | 81% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 0 to 5 mph N | 78% |
| Thursday | 82°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 66% |
| Thursday Night | 62°F | Mostly Clear | 0 mph | 8% |
| Friday | 85°F | Mostly Sunny | 0 to 5 mph S | 8% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 0 mph | 17% |
| Saturday | 89°F | Slight Chance Showers And Thunderstorms then Sunny | 0 to 5 mph S | 17% |
| Saturday Night | 70°F | Mostly Clear | 5 mph S | 6% |
| Sunday | 91°F | Sunny | 5 to 10 mph SW | 6% |
| Sunday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 20% |
| Monday | 91°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph S | 20% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 26% |
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 Aug 4, 2026.