Harman US

Chapin, IA Weather & Growing Conditions

This Afternoon
47°F
Slight Chance Rain Showers
A slight chance of rain showers. Cloudy, with a high near 47. West wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 47°F Slight Chance Rain Showers 15 mph W 21%
Tonight 41°F Chance Rain Showers 12 mph WNW 45%
Thursday 49°F Slight Chance Rain Showers then Cloudy 10 to 15 mph NNW 24%
Thursday Night 32°F Mostly Cloudy 5 to 9 mph N 3%
Friday 45°F Mostly Sunny 5 mph N 0%
Friday Night 26°F Partly Cloudy 1 mph WNW 0%
Saturday 50°F Mostly Sunny 1 to 6 mph SW 0%
Saturday Night 32°F Mostly Clear 5 mph W 0%
Sunday 57°F Sunny 5 mph W 0%
Sunday Night 35°F Clear 5 mph SW 0%
Monday 63°F Sunny 5 to 10 mph SW 0%
Monday Night 37°F Clear 5 mph W 0%
Tuesday 59°F Mostly Sunny 3 mph NNW 1%
Tuesday Night 37°F Partly Cloudy 2 mph NNW 1%

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

Growing snapshot for Chapin, IA

Last spring frost
Apr 29
First fall frost
Oct 9
Growing season
162 days

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

Climate data from the nearest NOAA station, Hampton, Ia (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.