Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Atlantic to churn out 3-5 storms in August. See the emerging tropical threats. Chevron right
Ready for cooler weather? See when it will arrive with AccuWeather's US fall forecast. Chevron right

Clay City, IL

70°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Clay City

Illinois

70°
No results found.
Try searching for a city, zip code or point of interest.
settings
Clay City, IL Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today Hourly

Daily

Radar MinuteCast® Monthly Air Quality Health & Activities

August 10 - September 23

Sun 8/10

91° /68°
1%
Humid with plenty of sunshine

RealFeel®99°

RealFeel Shade™93°

Max UV Index9 (Very High)

WindS 8 mph

Mon 8/11

91° /69°
55%
Mostly sunny and humid; a thunderstorm in spots in the afternoon

RealFeel®101°

RealFeel Shade™94°

Max UV Index9 (Very High)

WindS 7 mph

Tue 8/12

90° /71°
88%
Partly sunny and humid with a couple of thunderstorms

RealFeel®102°

RealFeel Shade™94°

Max UV Index9 (Very High)

WindS 7 mph

Wed 8/13

85° /69°
80%
Partly sunny and humid with a thunderstorm in parts of the area

RealFeel®99°

RealFeel Shade™91°

Max UV Index9 (Very High)

WindSW 5 mph

Thu 8/14

86° /68°
71%
Mostly sunny and humid with widely separated thunderstorms

RealFeel®101°

RealFeel Shade™91°

Max UV Index9 (Very High)

WindNE 5 mph

Fri 8/15

89° /69°
41%
Variable clouds with a thunderstorm in parts of the area; very humid

RealFeel®102°

RealFeel Shade™95°

Max UV Index5 (Moderate)

WindSSE 6 mph

Sat 8/16

88° /70°
72%
Intervals of clouds and sunshine with a couple of thunderstorms, mainly late; very humid

RealFeel®101°

RealFeel Shade™95°

Max UV Index9 (Very High)

WindWSW 7 mph

Sun 8/17

90° /69°
7%
Mostly sunny and humid

RealFeel®102°

RealFeel Shade™96°

Max UV Index9 (Very High)

WindSSW 6 mph

Mon 8/18

87° /67°
6%
Partly sunny and humid

RealFeel®99°

RealFeel Shade™91°

Max UV Index9 (Very High)

WindNE 6 mph

Tue 8/19

86° /68°
64%
Humid with variable cloudiness; a couple of thunderstorms in the morning followed by a passing shower in the afternoon

RealFeel®91°

RealFeel Shade™87°

Max UV Index4 (Moderate)

WindNE 5 mph

Wed 8/20

82° /65°
0%
Humid with plenty of sunshine

RealFeel®90°

RealFeel Shade™83°

Max UV Index8 (Very High)

WindNE 6 mph

Thu 8/21

82° /63°
0%
Humid with plenty of sunshine

RealFeel®88°

RealFeel Shade™82°

Max UV Index8 (Very High)

WindNNE 8 mph

Fri 8/22

84° /65°
0%
Humid with plenty of sunshine

RealFeel®90°

RealFeel Shade™83°

Max UV Index8 (Very High)

WindNE 6 mph

Sat 8/23

94° /70°
20%
Humid with plenty of sunshine

RealFeel®101°

RealFeel Shade™95°

Max UV Index8 (Very High)

WindE 5 mph

Sun 8/24

87° /65°
10%
Abundant sunshine

RealFeel®94°

RealFeel Shade™87°

Max UV Index8 (Very High)

WindESE 4 mph

Mon 8/25

90° /67°
5%
Brilliant sunshine and humid

RealFeel®96°

RealFeel Shade™91°

Max UV Index8 (Very High)

WindS 7 mph

Tue 8/26

89° /67°
40%
Humid with more clouds than sun; a thunderstorm in spots in the afternoon

RealFeel®92°

RealFeel Shade™92°

Max UV Index4 (Moderate)

WindS 7 mph

Wed 8/27

88° /65°
57%
A couple of morning showers; otherwise, mostly cloudy and humid

RealFeel®94°

RealFeel Shade™92°

Max UV Index3 (Moderate)

WindWSW 2 mph

Thu 8/28

85° /66°
25%
Turning cloudy and humid

RealFeel®90°

RealFeel Shade™90°

Max UV Index5 (Moderate)

WindENE 4 mph

Fri 8/29

86° /66°
25%
Mostly cloudy and humid

RealFeel®91°

RealFeel Shade™89°

Max UV Index2 (Low)

WindENE 7 mph

Sat 8/30

87° /65°
10%
Abundant sunshine and humid

RealFeel®96°

RealFeel Shade™90°

Max UV Index7 (High)

WindNE 5 mph

Sun 8/31

89° /66°
5%
Humid with brilliant sunshine

RealFeel®99°

RealFeel Shade™93°

Max UV Index7 (High)

WindNNE 2 mph

Mon 9/1

89° /65°
5%
Sunny and humid

RealFeel®98°

RealFeel Shade™92°

Max UV Index7 (High)

WindE 4 mph

Tue 9/2

88° /66°
20%
Partly sunny, warm and humid

RealFeel®94°

RealFeel Shade™89°

Max UV Index7 (High)

WindE 5 mph

Wed 9/3

89° /66°
20%
Increasing clouds, warm and humid

RealFeel®97°

RealFeel Shade™91°

Max UV Index7 (High)

WindS 5 mph

Thu 9/4

89° /65°
25%
Humid and remaining warm with a blend of sun and clouds

RealFeel®97°

RealFeel Shade™95°

Max UV Index6 (High)

WindSSW 4 mph

Fri 9/5

88° /64°
25%
Humid with intervals of clouds and sunshine

RealFeel®93°

RealFeel Shade™91°

Max UV Index4 (Moderate)

WindN 4 mph

Sat 9/6

87° /64°
10%
Mostly sunny and humid

RealFeel®94°

RealFeel Shade™87°

Max UV Index7 (High)

WindNE 4 mph

Sun 9/7

88° /63°
25%
Humid with sun giving way to increasing clouds

RealFeel®89°

RealFeel Shade™89°

Max UV Index5 (Moderate)

WindSSE 5 mph

Mon 9/8

86° /64°
25%
Cloudy and humid

RealFeel®87°

RealFeel Shade™87°

Max UV Index2 (Low)

WindNNW 7 mph

Tue 9/9

83° /63°
25%
Mostly cloudy and humid

RealFeel®89°

RealFeel Shade™85°

Max UV Index6 (High)

WindNW 4 mph

Wed 9/10

87° /62°
20%
Mostly sunny and humid

RealFeel®93°

RealFeel Shade™87°

Max UV Index6 (High)

WindWSW 4 mph

Thu 9/11

86° /63°
20%
Plenty of sunshine

RealFeel®88°

RealFeel Shade™85°

Max UV Index6 (High)

WindNE 5 mph

Fri 9/12

86° /58°
0%
Humid with plenty of sunshine

RealFeel®94°

RealFeel Shade™90°

Max UV Index6 (High)

WindNNE 1 mph

Sat 9/13

88° /59°
0%
Warm and humid with plenty of sunshine

RealFeel®96°

RealFeel Shade™92°

Max UV Index6 (High)

WindS 2 mph

Sun 9/14

87° /59°
0%
Warm and humid with sunshine

RealFeel®95°

RealFeel Shade™91°

Max UV Index6 (High)

WindS 2 mph

Mon 9/15

77° /50°
0%
Clouds to start, then sunshine returns and not as warm with lower humidity

RealFeel®76°

RealFeel Shade™74°

Max UV Index6 (High)

WindNNW 12 mph

Tue 9/16

74° /53°
0%
Sunshine and a few clouds

RealFeel®76°

RealFeel Shade™72°

Max UV Index6 (High)

WindNE 6 mph

Wed 9/17

76° /59°
1%
Sunshine and some clouds

RealFeel®78°

RealFeel Shade™74°

Max UV Index6 (High)

WindE 6 mph

Thu 9/18

75° /56°
60%
Periods of rain

RealFeel®73°

RealFeel Shade™73°

Max UV Index2 (Low)

WindSE 9 mph

Fri 9/19

82° /54°
40%
Partly sunny; a thunderstorm in spots in the morning followed by a thundershower in spots in the afternoon

RealFeel®83°

RealFeel Shade™82°

Max UV Index5 (Moderate)

WindW 6 mph

Sat 9/20

77° /58°
3%
Mostly sunny

RealFeel®81°

RealFeel Shade™76°

Max UV Index5 (Moderate)

WindNE 5 mph

Sun 9/21

83° /58°
61%
Partly sunny, warm and humid; a thundershower in spots in the morning followed by a couple of thunderstorms in the afternoon

RealFeel®89°

RealFeel Shade™87°

Max UV Index5 (Moderate)

WindSSW 5 mph

Mon 9/22

81° /58°
55%
A thunderstorm in spots in the morning; otherwise, mostly cloudy and humid

RealFeel®89°

RealFeel Shade™85°

Max UV Index3 (Moderate)

WindESE 4 mph

Tue 9/23

80° /59°
4%
Partly sunny and humid

RealFeel®83°

RealFeel Shade™80°

Max UV Index5 (Moderate)

WindENE 8 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Atlantic hurricane potential, US risk to increase around mid-August

2 hours ago

Weather Forecasts

Fall forecast 2025: Warmth to fuel fires, storms before chill hits US

4 days ago

Weather News

Canyon Fire joins California’s escalating wildfire crisis

1 day ago

Astronomy

Perseid meteor shower peaks Tuesday, but the moon may steal the show

1 day ago

Weather News

Rare winter rescue from brutal Antarctica conditions tests flight crew

2 days ago

More Stories

Featured Stories

Weather News

French firefighters battle blaze that scorched area bigger than Paris

2 days ago

Weather News

Read the Coast Guard report on the implosion of the Titan submersible

4 days ago

Weather News

Blue whales go quiet off California after marine heat wave

2 days ago

Astronomy

Days are getting shorter: How much daylight disappears in August

2 days ago

Weather News

Florida firefighters rescue kitten stuck in engine compartment

3 days ago

World North America United States Illinois Clay City

Weather Near Clay City:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2025 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information

...

...

...