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

Today's forecast for Decatur shows a low of 29 degrees Fahrenheit. Mostly cloudy, with a low around 29.

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

The 7-day forecast for Decatur shows highs from 22 to 38 degrees and lows from 6 to 29 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Decatur, IA this week?

Yes, rain is possible in Decatur this week. Precipitation chances: Friday (80% chance), Saturday (80% chance).

How accurate is the Decatur weather forecast?

WeatherForYou provides highly accurate Decatur 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.

Decatur, IA Weather Forecast and Current Conditions

WEATHER ALERTS - Wind Advisory

Current Conditions From Nearby Local Station

Switch to Metric Units

38°F
Feels Like 28°F

Humidity 55% Dew Point 23°F Wind W 18 MPH Gusts 29 Barometer N/A

Visibility 3 mi.

Report from a MADIS/MESONET weather station 2.1 mi. S of central Decatur
at 7:45 PM Tue, Nov 25, 2025

Point Forecast at a Glance

TueNov 25

WedNov 26

ThuNov 27

FriNov 28

20%

SatNov 29

80%

SunNov 30

MonDec 1

7-Day Temperature Trend

Week Ahead Summary

Cooling trend continues with high temperatures dropping from 38°F to 22°F. Some precipitation possible with wintry mix on at least one day.

Climate Context

This week's forecast shows temperatures running 12°F below the historical average for November-December. Normal highs for this period are around 43°F with lows around 24°F.

This Date in Weather History

1970 - The temperature at Tallahassee, FL, dipped to 13 degrees, following a high of 40 degrees the previous day. The mercury then reached 67 degrees on the 26th, and highs were in the 70s the rest of the month.

Decatur, IA 7 Day Weather Forecast Details

Tuesday Nov 25

Night: Mostly cloudy, with a low around 29. Windy, with a northwest wind 24 to 26 mph, with gusts as high as 43 mph.

Wednesday Nov 26

Day: Sunny, with a high near 38. Windy, with a west northwest wind 17 to 22 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 38 mph.

Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 21. Northwest wind 6 to 8 mph.

Thursday Nov 27

Day: Sunny, with a high near 38. Northwest wind 6 to 9 mph.

Night: Mostly clear, with a low around 18. Northwest wind around 5 mph becoming calm in the evening.

Friday Nov 28

Day: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 33.

Night: Snow. Low around 27. Chance of precipitation is 80%.

Saturday Nov 29

Day: Rain and snow. High near 35. Chance of precipitation is 80%.

Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 14.

Sunday Nov 30

Day: Partly sunny, with a high near 22.

Night: Mostly cloudy, with a low around 6.

Monday Dec 1

Day: Partly sunny, with a high near 22.

Night: Mostly cloudy, with a low around 8.

Tuesday Dec 2

Day: Mostly sunny, with a high near 27.

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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