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Duncombe, IA Weather & Growing Conditions

Today
76°F
Patchy Fog
Patchy fog and a chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm. Mostly cloudy. High near 76, with temperatures falling to around 74 in the afternoon. Northwest wind 6 to 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 76°F Patchy Fog 6 to 9 mph NW 38%
Tonight 59°F Slight Chance Rain Showers 10 mph N 22%
Sunday 66°F Chance Drizzle 14 mph NE 33%
Sunday Night 54°F Chance Rain Showers 12 mph ENE 49%
Monday 62°F Chance Rain Showers 12 mph ENE 50%
Monday Night 49°F Chance Rain Showers 5 to 9 mph ENE 49%
Tuesday 61°F Partly Sunny 7 mph ENE 9%
Tuesday Night 45°F Partly Cloudy 2 to 6 mph E 0%
Wednesday 66°F Sunny 5 mph E 1%
Wednesday Night 50°F Partly Cloudy 3 mph ESE 8%
Thursday 67°F Slight Chance Rain Showers 5 mph SE 17%
Thursday Night 53°F Mostly Cloudy 3 mph ESE 9%
Friday 70°F Partly Sunny 2 to 6 mph ESE 9%
Friday Night 55°F Mostly Cloudy 5 mph SE 10%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Duncombe, IA

Last spring frost
May 3
First fall frost
Oct 2
Growing season
150 days
Hardiness zone
5a

Explore more for Duncombe, IA: full frost dates · planting calendar · Iowa frost dates

Climate data from the nearest NOAA station, Webster City, Ia (10.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.