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

Today's forecast for Decatur shows a low of 22 degrees Fahrenheit. Areas of freezing rain before 3am.

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

The 7-day forecast for Decatur shows highs from 22 to 35 degrees and lows from 0 to 24 degrees Fahrenheit. Expect precipitation on 4 days with chances of 20% or higher.

Will it rain in Decatur, IN this week?

Yes, rain is possible in Decatur this week. Precipitation chances: Wednesday (30% chance), Monday (30% chance), Tuesday (50% chance), Wednesday (50% 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, IN Weather Forecast and Current Conditions

WEATHER ALERTS - Special Weather Statement

Current Conditions From Nearby Local Station

Switch to Metric Units

28°F
Feels Like 25°F

Humidity 99% Dew Point 28°F Wind ESE 3 MPH Gusts 4 Barometer 30.15 in.

Report from a personal weather station 1.2 mi. SE of central Decatur
at 2:43 AM Thu, Dec 4, 2025

Point Forecast at a Glance

WedDec 3

30%

ThuDec 4

FriDec 5

SatDec 6

SunDec 7

MonDec 8

TueDec 9

30%

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 22°F to 32°F. Some precipitation possible with wintry mix on at least one day.

Climate Context

This week's forecast shows temperatures running 9°F below the historical average for December. Normal highs for this period are around 38°F with lows around 24°F.

This Date in Weather History

1856 - A severe blizzard began to rage across Iowa and Kansas. It produced as much as 16 inches of snow in Iowa.

Decatur, IN 7 Day Weather Forecast Details

Wednesday Dec 3

Night: Areas of freezing rain before 3am. Cloudy, with a low around 22. Northwest wind around 10 mph. Chance of precipitation is 30%.

Thursday Dec 4

Day: Partly sunny, with a temperature falling to around 18 by 5pm. Northwest wind 5 to 10 mph.

Night: Partly cloudy, with a low around 0. Calm wind.

Friday Dec 5

Day: Mostly sunny, with a high near 27. Southwest wind around 5 mph.

Night: Mostly cloudy, with a low around 17. South wind around 5 mph.

Saturday Dec 6

Day: Mostly cloudy, with a high near 30.

Night: Cloudy, with a low around 19.

Sunday Dec 7

Day: Mostly cloudy, with a high near 26.

Night: Mostly cloudy, with a low around 6.

Monday Dec 8

Day: Partly sunny, with a high near 22.

Night: A 30 percent chance of snow. Mostly cloudy, with a low around 9.

Tuesday Dec 9

Day: A 30 percent chance of snow. Mostly cloudy, with a high near 32.

Night: A chance of snow. Mostly cloudy, with a low around 24.

Wednesday Dec 10

Day: A chance of snow. Mostly cloudy, with a high near 35.

About Decatur, IN

Decatur is a city in Root and Washington townships, Adams County, Indiana, United States. It is the county seat (and the largest community) of Adams County. Decatur is home to Adams Memorial Hospital, which was designated as one of the "Top 100" Critical Access Hospitals in the United States. The population of Decatur was 9,913 at the 2020 census, up from 9,405 at the 2010 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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