Duncombe, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Duncombe, a city in Webster County, Iowa.
Tonight
44°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 44, with temperatures rising to around 46 overnight. Northwest wind 12 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Duncombe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Showers And Thunderstorms | 12 to 15 mph NW | 91% |
| Wednesday | 51°F | Chance Rain Showers | 13 to 17 mph W | 39% |
| Wednesday Night | 41°F | Rain Showers Likely | 13 mph WNW | 60% |
| Thursday | 51°F | Rain Showers Likely | 13 mph NW | 61% |
| Thursday Night | 37°F | Mostly Cloudy | 6 to 10 mph N | 13% |
| Friday | 50°F | Partly Sunny | 6 mph N | 0% |
| Friday Night | 32°F | Mostly Cloudy | 2 mph SSE | 0% |
| Saturday | 56°F | Mostly Sunny | 1 to 5 mph SW | 2% |
| Saturday Night | 36°F | Partly Cloudy | 3 mph W | 3% |
| Sunday | 60°F | Sunny | 6 mph W | 6% |
| Sunday Night | 38°F | Mostly Clear | 5 mph SW | 2% |
| Monday | 64°F | Sunny | 6 to 10 mph WSW | 0% |
| Monday Night | 40°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 61°F | Mostly Sunny | 6 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Duncombe (42.470, -93.997). Updated through the day.
Growing snapshot for Duncombe
Last spring frost
May 3
First fall frost
Oct 2
Growing season
150 days
Hardiness zone
5a
More local growing data for Duncombe: nearby ZIP 50532 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Badger
Barnum
Callender
Clare
Coalville
Dayton
Fort Dodge
Gowrie
Harcourt
Lehigh
Moorland
Otho
Vincent
Climate data from the nearest NOAA station, Webster City, Ia (10.4 mi from Duncombe). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.