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Chapin, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Chapin, a community in Franklin County, Iowa.

This Afternoon
72°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 5pm, then a slight chance of showers and thunderstorms. Cloudy. High near 72, with temperatures falling to around 67 in the afternoon. Northwest wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Chapin

WhenTempForecastWindPrecip
This Afternoon 72°F Chance Showers And Thunderstorms 5 mph NW 34%
Tonight 57°F Slight Chance Showers And Thunderstorms 6 to 10 mph N 21%
Sunday 66°F Chance Drizzle 14 mph NE 29%
Sunday Night 50°F Slight Chance Drizzle then Chance Rain Showers 12 mph ENE 44%
Monday 58°F Rain Showers Likely 12 mph NE 74%
Monday Night 47°F Rain Showers Likely 5 to 9 mph NE 74%
Tuesday 60°F Slight Chance Rain Showers then Partly Sunny 8 mph ENE 21%
Tuesday Night 44°F Partly Cloudy 2 to 6 mph ENE 1%
Wednesday 64°F Mostly Sunny 5 mph E 0%
Wednesday Night 48°F Partly Cloudy 3 mph ESE 7%
Thursday 66°F Slight Chance Rain Showers 1 to 5 mph SE 22%
Thursday Night 53°F Slight Chance Rain Showers 2 mph ESE 21%
Friday 70°F Slight Chance Rain Showers then Mostly Cloudy 1 to 5 mph ESE 17%
Friday Night 55°F Mostly Cloudy 2 mph ESE 9%

Forecast source: National Weather Service (api.weather.gov) for Chapin (42.835, -93.222). Updated through the day.

Growing snapshot for Chapin

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

More local growing data for Chapin: nearby ZIP 50427 weather · frost dates · planting calendar · Iowa frost dates

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Climate data from the nearest NOAA station, Hampton, Ia (5.6 mi from Chapin). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.