Doon, IA Weather & Growing Conditions
Overnight
61°F
Areas Of Fog
Areas of fog before 5am, then areas of fog and a slight chance of showers and thunderstorms. Cloudy. Low around 61, with temperatures rising to around 64 overnight. North wind 0 to 5 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Areas Of Fog | 0 to 5 mph N | 15% |
| Saturday | 68°F | Patchy Fog then Cloudy | 5 to 10 mph N | 25% |
| Saturday Night | 55°F | Cloudy | 10 mph NNE | 10% |
| Sunday | 67°F | Mostly Cloudy | 10 to 15 mph NE | 14% |
| Sunday Night | 52°F | Chance Rain Showers | 5 to 10 mph ENE | 49% |
| 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 | 63°F | Mostly Sunny | 0 to 5 mph ESE | 4% |
| Tuesday Night | 44°F | Partly Cloudy | 0 to 5 mph ESE | 2% |
| Wednesday | 66°F | Mostly Sunny | 0 to 10 mph SE | 6% |
| Wednesday Night | 49°F | Partly Cloudy then Chance Rain Showers | 5 mph SSE | 27% |
| Thursday | 68°F | Chance Rain Showers | 5 to 10 mph SSE | 27% |
| Thursday Night | 52°F | Mostly Cloudy | 0 to 5 mph SE | 14% |
| Friday | 71°F | Partly Sunny | 5 to 10 mph SE | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Doon, IA
Last spring frost
May 1
First fall frost
Oct 4
Growing season
156 days
Hardiness zone
5a
Explore more for Doon, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Rock Rapids, Ia (9.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.