Mapleton, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mapleton, a city in Monona County, Iowa.
Today
73°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2pm, then patchy smoke and showers and thunderstorms likely between 2pm and 3pm, then patchy smoke and a chance of showers and thunderstorms. Mostly cloudy. High near 73, with temperatures falling to around 71 in the afternoon. North northeast wind 8 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Mapleton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Chance Showers And Thunderstorms | 8 to 12 mph NNE | 67% |
| Tonight | 57°F | Patchy Smoke | 1 to 7 mph NNE | 40% |
| Wednesday | 73°F | Patchy Smoke then Partly Sunny | 5 mph NE | 14% |
| Wednesday Night | 54°F | Mostly Clear | 3 mph ESE | 2% |
| Thursday | 80°F | Mostly Sunny | 0 to 6 mph SSE | 1% |
| Thursday Night | 61°F | Mostly Clear | 6 mph SSE | 2% |
| Friday | 85°F | Sunny | 3 to 8 mph S | 3% |
| Friday Night | 66°F | Mostly Clear | 3 to 8 mph S | 10% |
| Saturday | 90°F | Sunny | 3 to 13 mph S | 3% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 7 to 13 mph SSE | 17% |
| Sunday | 90°F | Mostly Sunny | 10 mph SSE | 13% |
| Sunday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 mph SE | 23% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 9 to 13 mph SE | 23% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms | 9 to 13 mph E | 18% |
Forecast source: National Weather Service (api.weather.gov) for Mapleton (42.167, -95.791). Updated through the day.
Growing snapshot for Mapleton
Last spring frost
May 3
First fall frost
Oct 1
Growing season
151 days
Hardiness zone
5a
More local growing data for Mapleton: nearby ZIP 51034 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mapleton No.2, Ia (0.3 mi from Mapleton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.