Corwith, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Corwith, a city in Hancock County, Iowa.
This Afternoon
68°F
Cloudy
Cloudy. High near 68, with temperatures falling to around 63 in the afternoon. North wind around 9 mph.
7-day forecast for Corwith
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Cloudy | 9 mph N | 14% |
| Tonight | 57°F | Cloudy | 7 to 13 mph NNE | 13% |
| Sunday | 67°F | Slight Chance Drizzle | 15 mph NE | 19% |
| Sunday Night | 50°F | Slight Chance Drizzle then Chance Rain Showers | 13 mph ENE | 44% |
| Monday | 57°F | Rain Showers Likely | 9 to 14 mph ENE | 69% |
| Monday Night | 46°F | Rain Showers Likely | 6 to 9 mph NE | 67% |
| Tuesday | 60°F | Partly Sunny | 8 mph ENE | 8% |
| Tuesday Night | 44°F | Partly Cloudy | 6 mph E | 1% |
| Wednesday | 65°F | Mostly Sunny | 6 mph ESE | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 5 mph SE | 13% |
| Thursday | 67°F | Chance Rain Showers | 3 to 7 mph SSE | 33% |
| Thursday Night | 53°F | Slight Chance Rain Showers | 3 mph SE | 21% |
| Friday | 71°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 6 mph ESE | 18% |
| Friday Night | 55°F | Mostly Cloudy | 5 mph SE | 13% |
Forecast source: National Weather Service (api.weather.gov) for Corwith (42.989, -93.958). Updated through the day.
Growing snapshot for Corwith
Last spring frost
Apr 29
First fall frost
Oct 7
Growing season
161 days
Hardiness zone
5a
More local growing data for Corwith: nearby ZIP 50430 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Britt 3E, Ia (13.9 mi from Corwith). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.