Harman US

Ashton, IA Weather & Growing Conditions

This Afternoon
64°F
Patchy Fog
Patchy fog before 1pm. Cloudy, with a high near 64. North wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 64°F Patchy Fog 10 mph N 11%
Tonight 55°F Patchy Fog 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). 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 19, 2026.