Harman US

Ashton, IA Weather & Growing Conditions

This Afternoon
64°F
Patchy Fog
Patchy fog. Cloudy, with a high near 64. North northeast wind around 10 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 64°F Patchy Fog 10 mph NNE 4%
Tonight 55°F Patchy Fog 10 to 15 mph NNE 5%
Sunday 66°F Cloudy 15 mph NE 10%
Sunday Night 50°F Rain Showers 10 to 15 mph ENE 85%
Monday 58°F Rain Showers 10 mph ENE 85%
Monday Night 45°F Chance Rain Showers then Mostly Cloudy 5 to 10 mph NE 25%
Tuesday 63°F Mostly Sunny 5 to 10 mph E 4%
Tuesday Night 44°F Partly Cloudy 5 mph ESE 1%
Wednesday 66°F Mostly Sunny 5 to 10 mph SE 4%
Wednesday Night 50°F Partly Cloudy then Chance Showers And Thunderstorms 5 to 10 mph SE 36%
Thursday 68°F Chance Showers And Thunderstorms 10 mph SSE 42%
Thursday Night 54°F Slight Chance Rain Showers 5 to 10 mph SE 16%
Friday 72°F Mostly Cloudy 5 to 10 mph SE 12%
Friday Night 56°F Mostly Cloudy then Chance Rain Showers 5 to 10 mph SE 27%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Ashton, IA

Last spring frost
May 5
First fall frost
Oct 3
Growing season
152 days
Hardiness zone
5a

Explore more for Ashton, IA: full frost dates · planting calendar · Iowa frost dates

Climate data from the nearest NOAA station, Sibley, Ia (8.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.