Delaware, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delaware, a city in Delaware County, Iowa.
Overnight
62°F
Partly Cloudy
Partly cloudy. Low around 62, with temperatures rising to around 64 overnight. South wind around 10 mph.
7-day forecast for Delaware
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Partly Cloudy | 10 mph S | 0% |
| Tuesday | 79°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 30% |
| Tuesday Night | 62°F | Showers And Thunderstorms Likely | 5 to 10 mph N | 68% |
| Wednesday | 73°F | Chance Showers And Thunderstorms | 5 mph N | 45% |
| Wednesday Night | 56°F | Chance Rain Showers | 0 to 5 mph N | 26% |
| Thursday | 78°F | Slight Chance Rain Showers then Sunny | 0 to 5 mph NE | 18% |
| Thursday Night | 59°F | Mostly Clear | 0 mph | 1% |
| Friday | 80°F | Sunny | 0 to 10 mph S | 3% |
| Friday Night | 64°F | Mostly Clear | 5 mph S | 9% |
| Saturday | 84°F | Mostly Sunny | 5 to 10 mph S | 11% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 10 mph S | 26% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 10 to 15 mph S | 26% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 10 mph S | 41% |
| Monday | 84°F | Chance Showers And Thunderstorms | 10 mph S | 41% |
Forecast source: National Weather Service (api.weather.gov) for Delaware (42.472, -91.338). Updated through the day.
Growing snapshot for Delaware
Last spring frost
May 3
First fall frost
Oct 4
Growing season
154 days
Hardiness zone
4b
More local growing data for Delaware: nearby ZIP 52036 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Manchester #2, Ia (5.6 mi from Delaware). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.