Swansea, IL Weather


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The most pleasant months of the year for Swansea are May, September and June. In Swansea, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Swansea with an average high temperature of 89.1°, which ranks it as one of the hottest places in Illinois. January is the snowiest month in Swansea with 4.1 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 - Swansea, IL

10 PM PST

Mostly Clear

48°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightMostly Clear42° / 67°E 6 mph
Thursday NightMostly Cloudy then Showers And Thunderstorms Likely53° / 75°SE 7 to 13 mph
Friday NightShowers And Thunderstorms Likely66° / 79°S 20 to 26 mph
Saturday NightChance Showers And Thunderstorms68° / 80°S 20 to 25 mph
Sunday NightShowers And Thunderstorms63° / 76°S 18 to 23 mph
Monday NightChance Showers And Thunderstorms56° / 78°W 7 to 14 mph
Tuesday NightMostly Clear58° / 83°SE 6 to 9 mph

Weather Highlights

Summer High: the July high is around 89 degrees
Winter Low: the January low is 22
Rain: averages 42 inches of rain a year
Snow: averages 13 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Swansea area is 7.3 (10=best), which means it is more comfortable than most places in Illinois.

7.3 / 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
January41° 22°
February46° 26°
March57° 34°
April68° 45°
May77° 55°
June86° 63°
July89° 67°
August88° 65°
September81° 56°
October70° 45°
November56° 35°
December43° 26°
Hot, Freezing, Rainy, Snowy Days: Swansea
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January02673
February02172
March01491
April03100
May10110
June9090
July14080
August12070
September4070
October0380
November01290
December02382

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.

Reviews for Swansea
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Over 14 years ago

Since moving here in 2007, we have been very impressed with the Wolf Branch School  More

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Over 15 years ago

Quite calm city with lots of amenities within short or walking  More

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