What is today's weather forecast for Duncan, IA?

Today's forecast for Duncan shows a high of 38 degrees Fahrenheit. Partly sunny, with a high near 38.

What is the 7-day weather forecast for Duncan, IA?

The 7-day forecast for Duncan shows highs from 23 to 38 degrees and lows from 1 to 25 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Duncan, IA this week?

Yes, rain is possible in Duncan this week. Precipitation chances: Wednesday (80% chance), Thursday (40% chance).

How accurate is the Duncan weather forecast?

WeatherForYou provides highly accurate Duncan forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Duncan, IA Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Switch to Metric Units

30°F
Feels Like 22°F

Humidity 84% Dew Point 26°F Wind NW 9 MPH Gusts 9 Barometer 29.92 in.

Report from a MADIS/MESONET weather station 5.3 mi. E of central Duncan
at 5:15 AM Wed, Dec 17, 2025

Point Forecast at a Glance

WedDec 17

ThuDec 18

40%

FriDec 19

SatDec 20

SunDec 21

MonDec 22

TueDec 23

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 23°F to 38°F. Some precipitation possible, including both rain and snow.

Climate Context

This week's forecast shows temperatures running 1°F above the historical average for December. Normal highs for this period are around 30°F with lows around 13°F.

This Date in Weather History

1884 - A three week blockade of snow began at Portland, OR. A record December total of 34 inches was received.

Duncan, IA 7 Day Weather Forecast Details

Wednesday Dec 17

Day: Partly sunny, with a high near 38. Windy, with a light and variable wind becoming south 17 to 22 mph in the morning. Winds could gust as high as 30 mph.

Night: Rain, mainly between midnight and 4am. Temperature rising to around 39 by 4am. Windy, with a south wind 18 to 24 mph becoming west after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Dec 18

Day: A 40 percent chance of snow, mainly after noon. Partly sunny, with a temperature falling to around 15 by 5pm. Wind chill values as low as -5. Windy, with a west wind 21 to 26 mph increasing to 27 to 32 mph in the morning. Winds could gust as high as 44 mph. New snow accumulation of less than a half inch possible.

Night: Partly cloudy, with a low around 1. Wind chill values as low as -10. Windy, with a northwest wind 19 to 29 mph decreasing to 8 to 18 mph after midnight. Winds could gust as high as 38 mph.

Friday Dec 19

Day: Mostly sunny, with a high near 28. Breezy, with a northwest wind 6 to 11 mph becoming south southeast 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.

Night: Mostly cloudy, with a low around 20. Breezy.

Saturday Dec 20

Day: Mostly sunny, with a high near 30.

Night: Partly cloudy, with a low around 8.

Sunday Dec 21

Day: Mostly sunny, with a high near 23.

Night: Mostly cloudy, with a low around 15.

Monday Dec 22

Day: Partly sunny, with a high near 32.

Night: Mostly cloudy, with a low around 25.

Tuesday Dec 23

Day: Partly sunny, with a high near 34.

About Duncan, IA

Duncan is a census-designated place (CDP) in Hancock County, Iowa, United States. The population was 57 at the 2020 census.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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