Summersville, IL

Unincorporated community in Jefferson County, Illinois

Summersville is a small unincorporated community in Jefferson County, Illinois. It is 2.9 miles W of Mount Vernon, the nearest town. Its ZIP code is 62864.

Summersville at a glance

State
Illinois
County
Jefferson County
ZIP code
62864
Nearest town
Mount Vernon (2.9 mi)
Time zone
America/Chicago
Coordinates
38.3278, -88.8669

Weather in Summersville now

Loading the National Weather Service forecast…

Summersville weather by the hour

Summersville weather for the next 7 days

Source: National Weather Service (NOAA) · forecast for the coordinates of Summersville.

This week in Summersville

Sunrise, sunset and moon in Summersville

What is the weather usually like in Summersville?

Dfa
Hot-summer humid continental climate
Köppen climate classification, calculated from the 1991–2020 normals

Average high and low temperature (°F)

17°36°54°73°91°38°22°Jan44°25°Feb54°34°Mar65°44°Apr74°55°May82°64°Jun86°67°Jul85°65°Aug79°57°Sep67°45°Oct54°34°Nov43°26°Dec

Average precipitation (inches)

2.6"Jan2.6"Feb4.0"Mar5.0"Apr5.1"May4.8"Jun3.8"Jul3.3"Aug3.4"Sep3.5"Oct4.0"Nov2.9"Dec

Best time to visit Summersville: May–June and August–September, with mild temperatures and fewer rainy days.

Source: NOAA NCEI U.S. Climate Normals 1991–2020, station MT VERNON 3 NE, IL US (USC00115943), adjusted for the elevation of Summersville.

Summersville weather month by month

January
38° 22°F
2.6 in of rain · 5 wet days❄ 3.2 in of snow
February
44° 25°F
2.6 in of rain · 5 wet days❄ 3.1 in of snow
March
54° 34°F
4.0 in of rain · 7 wet days❄ 1.0 in of snow
April
65° 44°F
5.0 in of rain · 8 wet days
May
74° 55°F
5.1 in of rain · 9 wet days
June
82° 64°F
4.8 in of rain · 7 wet days
July
86° 67°F
3.8 in of rain · 6 wet days
August
85° 65°F
3.3 in of rain · 5 wet days
September
79° 57°F
3.4 in of rain · 5 wet days
October
67° 45°F
3.5 in of rain · 6 wet days❄ 0.2 in of snow
November
54° 34°F
4.0 in of rain · 7 wet days❄ 0.4 in of snow
December
43° 26°F
2.9 in of rain · 6 wet days❄ 2.5 in of snow

Sunrise and sunset in Summersville through the year

MonthSunriseSunsetDaylight
January7:09 AM5:00 PM9 h 51 min
February6:44 AM5:35 PM10 h 51 min
March7:04 AM7:03 PM11 h 59 min
April6:17 AM7:33 PM13 h 15 min
May5:42 AM8:01 PM14 h 18 min
June5:29 AM8:22 PM14 h 52 min
July5:42 AM8:20 PM14 h 37 min
August6:08 AM7:50 PM13 h 41 min
September6:36 AM7:05 PM12 h 29 min
October7:03 AM6:19 PM11 h 15 min
November6:35 AM4:44 PM10 h 8 min
December7:03 AM4:37 PM9 h 33 min

Times for the 15th of each month, local time (America/Chicago).

What is the weather like in Summersville?

Summersville has a hot-summer humid continental climate. The warmest month is July, with an average high of 86°F (30°C), and the coldest is January, with average lows of 22°F (-6°C).

It gets about 45.0 inches (1,142 mm) of precipitation a year. The wettest month is May and the driest is January. Snow is common: about 10 inches fall in an average year.

The best time to visit Summersville is May–June and August–September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.

Webcams near Summersville

The closest live webcam is Sparta: Sparta Community Airport, 47.5 miles W of Summersville.

Sparta: Sparta Community AirportSparta · 47.5 mi WOn Windy
Barrett: I-64: 1-064-007-4-1-rwis BLACK RIVERBarrett · 55.4 mi EOn Windy
Barrett: I-64: 1-064-007-5-ebra-_-cam-1 I-64 EB @ Black River rest areaBarrett · 55.4 mi EOn Windy
Barrett: I-64: 1-064-007-5-ebra-_-cam-2 I-64 EB @ Black River rest areaBarrett · 55.5 mi EOn Windy
Barrett: I-64: 1-064-007-5-ebra-_-cam-3 I-64 EB @ Black River rest areaBarrett · 55.5 mi EOn Windy
Mount Vernon: IN 62: 01-065-009-_-_-cam-1 SR 62 & State StMount Vernon · 60.1 mi SEOn Windy

Webcams: Windy.com. Distances in a straight line from Summersville.

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Map of Summersville, IL

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Summersville Street View

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Towns near Summersville

Other communities near Summersville

Questions about Summersville

Where is Summersville, IL?

Summersville is an unincorporated community in Jefferson County, Illinois, 2.9 miles W of Mount Vernon.

What county is Summersville in?

Summersville is in Jefferson County, Illinois.

What is the ZIP code of Summersville, IL?

The ZIP code for Summersville is 62864.

What is the nearest town to Summersville?

Mount Vernon, 2.9 miles away.

Are there webcams near Summersville?

Yes. The closest is Sparta: Sparta Community Airport, 47.5 miles away.

What is the hottest month in Summersville?

July, with an average high of 86°F (30°C).

What is the coldest month in Summersville?

January, with an average low of 22°F (-6°C).

How much does it rain in Summersville?

About 45.0 inches (1,142 mm) a year; the wettest month is May.

Does it snow in Summersville?

Yes, about 10 inches of snow fall in an average year.

When is the best time to visit Summersville?

May–June and August–September, when temperatures are most pleasant and rainy days are fewer.

What climate does Summersville have?

Hot-summer humid continental (Köppen Dfa).

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