Fort Madison, IA Weather & Growing Conditions
Overnight
71°F
Patchy Fog
Patchy fog. Mostly cloudy. Low around 71, with temperatures rising to around 74 overnight. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Patchy Fog | 5 mph S | 11% |
| Saturday | 87°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph S | 15% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 67% |
| Sunday | 75°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph N | 80% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 67% |
| Monday | 65°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 67% |
| Monday Night | 55°F | Chance Rain Showers | 10 mph NE | 40% |
| Tuesday | 63°F | Chance Rain Showers | 10 mph NE | 40% |
| Tuesday Night | 50°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 67°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 54°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 70°F | Partly Sunny | 5 mph NE | 5% |
| Thursday Night | 56°F | Mostly Cloudy | 5 mph NE | 4% |
| Friday | 73°F | Mostly Sunny | 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fort Madison, IA
Last spring frost
Apr 12
First fall frost
Oct 25
Growing season
194 days
Hardiness zone
6a
Explore more for Fort Madison, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Ft Madison, Ia (2.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.