Ashton, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ashton, a city in Osceola County, Iowa.
Today
67°F
Areas Of Fog then Cloudy
Areas of fog and a chance of rain showers before noon. Cloudy, with a high near 67. North wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Ashton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Areas Of Fog then Cloudy | 5 to 10 mph N | 29% |
| Tonight | 55°F | Cloudy | 10 to 15 mph NNE | 8% |
| Sunday | 66°F | Cloudy | 15 mph NE | 11% |
| Sunday Night | 51°F | Chance Rain Showers | 10 to 15 mph ENE | 40% |
| Monday | 60°F | Chance Rain Showers | 10 mph ENE | 53% |
| Monday Night | 46°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph E | 28% |
| Tuesday | 63°F | Mostly Sunny | 5 to 10 mph E | 4% |
| Tuesday Night | 43°F | Partly Cloudy | 5 mph ESE | 2% |
| Wednesday | 66°F | Mostly Sunny | 5 to 10 mph SE | 4% |
| Wednesday Night | 48°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SE | 21% |
| Thursday | 68°F | Slight Chance Rain Showers | 5 to 10 mph SSE | 21% |
| Thursday Night | 52°F | Mostly Cloudy | 5 mph SE | 12% |
| Friday | 70°F | Partly Sunny | 5 to 10 mph SE | 13% |
| Friday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph SE | 21% |
Forecast source: National Weather Service (api.weather.gov) for Ashton (43.309, -95.791). Updated through the day.
Growing snapshot for Ashton
Last spring frost
May 5
First fall frost
Oct 3
Growing season
152 days
Hardiness zone
5a
More local growing data for Ashton: nearby ZIP 51232 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sibley, Ia (8.2 mi from Ashton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.