Massac County, IL Weather


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United States / Illinois / / Massac County / Cities / Zip Codes

The most pleasant months of the year for Massac County are May, September and June. In Massac County, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Massac County with an average high temperature of 88.8°, which ranks it as one of the hottest places in Illinois. February is the snowiest month in Massac County with 2.5 inches of snow, and 4 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 - Massac, IL

4 AM PST

Mostly Sunny

44°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TodayMostly Sunny68° / 53°ENE 7 mph
FridayChance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms78° / 67°SE 9 to 16 mph
SaturdayChance Showers And Thunderstorms82° / 66°S 16 to 20 mph
SundayMostly Sunny83° / 64°S 16 to 23 mph
MondayChance Showers And Thunderstorms then Showers And Thunderstorms74° / 60°S 15 to 18 mph
TuesdayChance Showers And Thunderstorms78° / 58°WSW 6 to 10 mph
WednesdaySlight Chance Showers And Thunderstorms83° / 60°SW 6 to 10 mph

Weather Highlights

Summer High: the July high is around 89 degrees
Winter Low: the January low is 25
Rain: averages 48 inches of rain a year
Snow: averages 7 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Massac County area is 7.1 (10=best), which means it is more comfortable than most places in Illinois.

7.1 / 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
January43° 25°
February48° 29°
March58° 37°
April69° 46°
May77° 56°
June85° 64°
July89° 68°
August89° 67°
September82° 58°
October71° 47°
November58° 38°
December46° 28°
Hot, Freezing, Rainy, Snowy Days: Massac
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January02392
February01892
March011100
April02110
May10110
June7090
July14080
August13070
September4070
October0280
November010100
December020101

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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