Keosauqua, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Keosauqua, a city in Van Buren County, Iowa.
Tonight
66°F
Chance Showers And Thunderstorms
A slight chance of rain showers between 10pm and 11pm, then a chance of showers and thunderstorms between 11pm and 1am, then showers and thunderstorms likely. Mostly cloudy. Low around 66, with temperatures rising to around 69 overnight. Northwest wind around 0 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Keosauqua
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Chance Showers And Thunderstorms | 0 mph | 65% |
| Sunday | 72°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 10 mph N | 64% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 5 to 10 mph NE | 65% |
| Monday | 64°F | Showers And Thunderstorms | 5 to 10 mph NE | 77% |
| Monday Night | 54°F | Rain Showers Likely | 5 mph NE | 70% |
| Tuesday | 62°F | Chance Rain Showers | 5 mph NE | 36% |
| Tuesday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Wednesday | 65°F | Mostly Sunny | 5 mph NE | 0% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Thursday | 69°F | Partly Sunny | 0 mph | 5% |
| Thursday Night | 57°F | Slight Chance Rain Showers | 0 mph | 19% |
| Friday | 73°F | Slight Chance Rain Showers | 0 to 5 mph E | 19% |
| Friday Night | 57°F | Mostly Cloudy | 0 mph | 8% |
| Saturday | 73°F | Partly Sunny | 0 to 5 mph E | 10% |
Forecast source: National Weather Service (api.weather.gov) for Keosauqua (40.735, -91.960). Updated through the day.
Growing snapshot for Keosauqua
Last spring frost
Apr 26
First fall frost
Oct 13
Growing season
169 days
Hardiness zone
5b
More local growing data for Keosauqua: nearby ZIP 52565 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Keosauqua, Ia (1.9 mi from Keosauqua). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.