De Witt County, IL Weather


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The most pleasant months of the year for De Witt County are September, May and June. In De Witt County, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for De Witt County with an average high temperature of 85.3°, which ranks it as about average compared to other places in Illinois. December is the snowiest month in De Witt County with 5.5 inches of snow, and 5 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.

Today's Weather - De Witt, IL

2 AM PST

Partly Cloudy

59°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightPartly Cloudy57° / 85°E 9 mph
Thursday NightChance Showers And Thunderstorms then Showers And Thunderstorms Likely62° / 73°SW 7 to 14 mph
Friday NightChance Showers And Thunderstorms then Partly Cloudy53° / 77°ENE 7 to 12 mph
Saturday NightChance Showers And Thunderstorms55° / 74°WNW 10 mph
Sunday NightSlight Chance Showers And Thunderstorms56° / 78°E 8 to 12 mph
Monday NightChance Showers And Thunderstorms63° / 82°SSE 16 mph
Tuesday NightShowers And Thunderstorms Likely60° / 81°SW 12 to 18 mph

Weather Highlights

Summer High: the July high is around 85 degrees
Winter Low: the January low is 17
Rain: averages 40 inches of rain a year
Snow: averages 18 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the De Witt County area is 8.5 (10=best), which means it is more comfortable than most places in Illinois.

8.5 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January33° 17°
February38° 21°
March50° 30°
April63° 40°
May74° 51°
June83° 60°
July85° 64°
August84° 62°
September78° 53°
October65° 42°
November51° 32°
December37° 21°
Hot, Freezing, Rainy, Snowy Days: De Witt
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January02884
February02473
March019101
April06110
May10110
June4090
July6090
August5080
September2070
October0590
November01690
December02693

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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