Corwith, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Corwith, a city in Hancock County, Iowa.
Overnight
64°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. Low around 64, with temperatures rising to around 68 overnight. Southwest wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Corwith
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Chance Showers And Thunderstorms | 7 mph SW | 48% |
| Tuesday | 75°F | Showers And Thunderstorms Likely | 7 to 13 mph NNW | 60% |
| Tuesday Night | 56°F | Showers And Thunderstorms Likely | 2 to 8 mph NNW | 58% |
| Wednesday | 75°F | Mostly Sunny | 3 mph NNE | 3% |
| Wednesday Night | 52°F | Mostly Clear | 3 mph SE | 2% |
| Thursday | 81°F | Sunny | 2 to 7 mph S | 1% |
| Thursday Night | 60°F | Mostly Clear | 8 mph S | 1% |
| Friday | 84°F | Sunny | 6 to 13 mph S | 9% |
| Friday Night | 64°F | Chance Showers And Thunderstorms | 7 to 13 mph S | 26% |
| Saturday | 86°F | Slight Chance Showers And Thunderstorms then Sunny | 6 to 15 mph S | 15% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 27% |
| Sunday | 86°F | Chance Showers And Thunderstorms then Mostly Sunny | 13 mph SE | 27% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms | 8 to 12 mph SE | 32% |
| Monday | 85°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 14 mph ESE | 32% |
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 Aug 4, 2026.