Corwith, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Corwith, a city in Hancock County, Iowa.
Overnight
43°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 43, with temperatures rising to around 45 overnight. Northwest wind around 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Corwith
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Rain Showers Likely | 15 mph NW | 63% |
| Wednesday | 49°F | Chance Rain Showers | 15 to 18 mph WNW | 51% |
| Wednesday Night | 41°F | Chance Rain Showers | 15 mph WNW | 49% |
| Thursday | 49°F | Chance Rain Showers then Cloudy | 13 to 17 mph NNW | 32% |
| Thursday Night | 34°F | Mostly Cloudy | 6 to 12 mph N | 4% |
| Friday | 47°F | Mostly Sunny | 2 to 6 mph N | 3% |
| Friday Night | 27°F | Partly Cloudy | 2 mph E | 0% |
| Saturday | 50°F | Mostly Sunny | 1 to 6 mph SW | 0% |
| Saturday Night | 33°F | Mostly Clear | 5 mph W | 1% |
| Sunday | 56°F | Sunny | 7 mph W | 1% |
| Sunday Night | 35°F | Mostly Clear | 6 mph SW | 0% |
| Monday | 62°F | Sunny | 6 to 10 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 59°F | Mostly Sunny | 3 mph NW | 0% |
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 Nov 4, 2026.