Doon, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Doon, a city in Lyon County, Iowa.
Overnight
62°F
Areas Of Fog
Areas of fog before 5am, then areas of fog and a slight chance of showers and thunderstorms. Mostly cloudy. Low around 62, with temperatures rising to around 65 overnight. North wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Doon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Areas Of Fog | 0 to 5 mph N | 15% |
| Saturday | 68°F | Patchy Fog then Mostly Cloudy | 5 to 10 mph N | 25% |
| Saturday Night | 55°F | Cloudy | 5 to 10 mph NNE | 10% |
| Sunday | 67°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 16% |
| Sunday Night | 52°F | Chance Rain Showers | 5 to 10 mph ENE | 51% |
| Monday | 61°F | Chance Rain Showers | 5 to 10 mph ENE | 54% |
| Monday Night | 46°F | Chance Rain Showers then Mostly Cloudy | 0 to 5 mph E | 28% |
| Tuesday | 62°F | Partly Sunny | 0 to 5 mph E | 4% |
| Tuesday Night | 46°F | Partly Cloudy | 0 to 5 mph ESE | 0% |
| Wednesday | 67°F | Mostly Sunny | 0 to 10 mph SSE | 8% |
| Wednesday Night | 51°F | Mostly Cloudy then Chance Rain Showers | 5 mph SSE | 35% |
| Thursday | 67°F | Chance Rain Showers | 5 mph SSE | 35% |
| Thursday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SE | 15% |
| Friday | 69°F | Slight Chance Rain Showers then Partly Sunny | 0 to 10 mph SE | 15% |
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 Sep 19, 2026.