Doon, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Doon, a city in Lyon County, Iowa.
This Afternoon
46°F
Rain Showers
Rain showers before 3pm, then rain showers and patchy fog. Cloudy, with a high near 46. West northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Doon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 46°F | Rain Showers | 15 mph WNW | 79% |
| Tonight | 37°F | Chance Rain Showers then Cloudy | 10 to 15 mph NW | 51% |
| Thursday | 46°F | Mostly Cloudy | 10 to 15 mph N | 1% |
| Thursday Night | 30°F | Cloudy | 0 to 5 mph N | 0% |
| Friday | 45°F | Mostly Sunny | 0 mph | 0% |
| Friday Night | 28°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph SSW | 0% |
| Saturday Night | 33°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Sunday | 58°F | Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 37°F | Clear | 5 mph SSW | 0% |
| Monday | 62°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 36°F | Mostly Clear | 0 to 5 mph NNW | 0% |
| Tuesday | 58°F | Mostly Sunny | 0 to 5 mph NNW | 0% |
| Tuesday Night | 38°F | Partly Cloudy | 0 mph | 1% |
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 Nov 4, 2026.