Doon, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Doon, a city in Lyon County, Iowa.
Overnight
61°F
Chance Rain Showers
A chance of rain showers and patchy smoke. Mostly cloudy, with a low around 61. North wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Doon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Chance Rain Showers | 10 mph N | 49% |
| Tuesday | 72°F | Chance Rain Showers | 5 to 10 mph NNW | 41% |
| Tuesday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 0 mph | 19% |
| Wednesday | 76°F | Mostly Sunny | 0 mph | 1% |
| Wednesday Night | 54°F | Mostly Clear | 0 to 5 mph S | 0% |
| Thursday | 82°F | Mostly Sunny | 0 to 10 mph S | 0% |
| Thursday Night | 62°F | Mostly Clear | 5 to 10 mph S | 3% |
| Friday | 86°F | Sunny | 5 to 10 mph SSW | 6% |
| Friday Night | 64°F | Mostly Clear | 5 to 10 mph S | 13% |
| Saturday | 88°F | Sunny | 5 to 15 mph S | 5% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 10 to 15 mph SE | 26% |
| Sunday | 87°F | Mostly Sunny | 10 mph SE | 13% |
| Sunday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 mph E | 24% |
| Monday | 86°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph E | 24% |
Forecast source: National Weather Service (api.weather.gov) for Doon (43.279, -96.233). Updated through the day.
Growing snapshot for Doon
Last spring frost
May 1
First fall frost
Oct 4
Growing season
156 days
Hardiness zone
5a
More local growing data for Doon: nearby ZIP 51235 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Rock Rapids, Ia (9.6 mi from Doon). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.