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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
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.