Fort Madison, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fort Madison, a city in Lee County, Iowa.
Today
88°F
Mostly Cloudy
Mostly cloudy, with a high near 88. South wind 5 to 10 mph.
7-day forecast for Fort Madison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Cloudy | 5 to 10 mph S | 14% |
| Tonight | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 64% |
| Sunday | 76°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph N | 80% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 68% |
| Monday | 66°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 68% |
| Monday Night | 57°F | Chance Rain Showers | 10 to 15 mph NE | 39% |
| Tuesday | 64°F | Chance Rain Showers | 10 mph NE | 39% |
| Tuesday Night | 52°F | Partly Cloudy | 5 to 10 mph NE | 4% |
| Wednesday | 69°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 56°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 72°F | Partly Sunny | 5 mph NE | 5% |
| Thursday Night | 59°F | Partly Cloudy | 5 mph NE | 4% |
| Friday | 74°F | Mostly Sunny | 5 mph NE | 5% |
| Friday Night | 59°F | Partly Cloudy | 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov) for Fort Madison (40.621, -91.349). Updated through the day.
Growing snapshot for Fort Madison
Last spring frost
Apr 12
First fall frost
Oct 25
Growing season
194 days
Hardiness zone
6a
More local growing data for Fort Madison: nearby ZIP 52627 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Argyle
Denmark
Donnellson
Farmington
Franklin
Hillsboro
Houghton
Keokuk
Montrose
Mooar
Oak Hills
Sandusky
St. Paul
West Point
Wever
Climate data from the nearest NOAA station, Ft Madison, Ia (2.8 mi from Fort Madison). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.