Chapin, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chapin, a community in Franklin County, Iowa.
Today
50°F
Chance Rain Showers
A chance of rain showers. Cloudy. High near 50, with temperatures falling to around 48 in the afternoon. West wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Chapin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Chance Rain Showers | 13 to 16 mph W | 45% |
| Tonight | 42°F | Rain Showers Likely | 12 mph W | 57% |
| Thursday | 50°F | Chance Rain Showers then Cloudy | 10 to 14 mph NNW | 38% |
| Thursday Night | 34°F | Mostly Cloudy | 5 to 9 mph N | 8% |
| Friday | 47°F | Mostly Sunny | 2 to 6 mph NNE | 2% |
| Friday Night | 27°F | Partly Cloudy | 1 mph NNW | 0% |
| Saturday | 50°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 33°F | Mostly Clear | 3 mph W | 2% |
| Sunday | 56°F | Sunny | 6 mph W | 2% |
| Sunday Night | 35°F | Mostly Clear | 3 mph SW | 0% |
| Monday | 61°F | Sunny | 3 to 9 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 59°F | Mostly Sunny | 3 mph NW | 0% |
| Tuesday Night | 39°F | Partly Cloudy | 2 mph WSW | 1% |
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 Nov 4, 2026.