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
Patchy Fog
Patchy fog and a slight chance of showers and thunderstorms before 4pm. Cloudy. High near 68, with temperatures falling to around 66 in the afternoon. North wind 6 to 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Corwith
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Patchy Fog | 6 to 9 mph N | 18% |
| Tonight | 57°F | Cloudy | 13 mph NNE | 13% |
| Sunday | 66°F | Slight Chance Drizzle | 15 mph NE | 19% |
| Sunday Night | 52°F | Chance Drizzle then Chance Rain Showers | 13 mph ENE | 44% |
| Monday | 61°F | Chance Rain Showers | 9 to 13 mph ENE | 47% |
| Monday Night | 47°F | Chance Rain Showers then Mostly Cloudy | 6 to 9 mph ENE | 35% |
| Tuesday | 61°F | Mostly Sunny | 8 mph ENE | 9% |
| Tuesday Night | 43°F | Mostly Clear | 2 to 6 mph E | 0% |
| Wednesday | 65°F | Sunny | 5 mph ESE | 1% |
| Wednesday Night | 48°F | Partly Cloudy then Slight Chance Rain Showers | 3 mph SE | 15% |
| Thursday | 66°F | Slight Chance Rain Showers then Partly Sunny | 6 mph SE | 15% |
| Thursday Night | 51°F | Mostly Cloudy | 3 mph SE | 6% |
| Friday | 69°F | Partly Sunny | 3 to 7 mph SE | 6% |
| Friday Night | 53°F | Mostly Cloudy | 5 mph SE | 12% |
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 19, 2026.