Keokuk, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Keokuk, a city in Lee County, Iowa.
This Afternoon
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. High near 71, with temperatures falling to around 69 in the afternoon. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
7-day forecast for Keokuk
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Chance Showers And Thunderstorms | 15 mph S | 42% |
| Tonight | 51°F | Chance Rain Showers | 10 to 15 mph S | 40% |
| Wednesday | 56°F | Mostly Cloudy | 15 mph SW | 13% |
| Wednesday Night | 45°F | Mostly Cloudy | 5 to 10 mph SW | 2% |
| Thursday | 56°F | Partly Sunny | 5 to 10 mph W | 14% |
| Thursday Night | 44°F | Mostly Cloudy then Chance Rain Showers | 5 mph NW | 29% |
| Friday | 54°F | Mostly Cloudy | 5 to 10 mph N | 8% |
| Friday Night | 38°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 55°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 38°F | Mostly Clear | 0 mph | 2% |
| Sunday | 61°F | Sunny | 0 to 5 mph W | 9% |
| Sunday Night | 39°F | Mostly Clear | 0 to 5 mph W | 3% |
| Monday | 65°F | Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 43°F | Mostly Clear | 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Keokuk (40.410, -91.403). Updated through the day.
Growing snapshot for Keokuk
Last spring frost
Apr 10
First fall frost
Oct 27
Growing season
198 days
Hardiness zone
6a
More local growing data for Keokuk: nearby ZIP 52632 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Argyle
Denmark
Donnellson
Farmington
Fort Madison
Franklin
Hillsboro
Houghton
Montrose
Mooar
Oak Hills
Sandusky
St. Paul
West Point
Wever
Climate data from the nearest NOAA station, Keokuk Lock Dam 19, Ia (4.4 mi from Keokuk). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.