World > North America > United States > Illinois > Clayton  

Clayton, IL Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Clayton, IL Weather Forecast

Current Conditions

Settings
Clayton IL weather - Overcast - 78°F
Overcast
78°F
Updated 3:28 pm
Feels Like 71°F
Humidity 41%
Wind NNE 15 mph
Barometer  30.12 in
Dew Point 53°F
Clayton IL weather - Overcast - 26°C
Overcast
26°C
Updated 3:28 pm
Feels Like 22°C
Humidity 41%
Wind NNE 24 km/h
Barometer  101.9 kPa
Dew Point 12°C
WX Settings

Clayton Weather Forecast

THIS AFTERNOON TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT
Clayton, IL Weather - This Afternoon Mostly Sunny Clayton, IL Weather - Tonight Mostly Cloudy Clayton, IL Weather - Monday Chance Of T-Storm Clayton, IL Weather - Monday Night Mostly Clear Clayton, IL Weather - Tuesday Chance Of T-Storm Clayton, IL Weather - Tuesday Night Thunderstorms Clayton, IL Weather - Wednesday Thunderstorms Clayton, IL Weather - Wednesday Night Chance Of T-Storm Clayton, IL Weather - Thursday Chance Of T-Storm Clayton, IL Weather - Thursday Night Chance Of Showers Clayton, IL Weather - Friday Chance Of T-Storm Clayton, IL Weather - Friday Night Chance Of T-Storm
Mostly Sunny Mostly Cloudy Chance of T-Storm Mostly Clear Chance of T-Storm Thunderstorms Thunderstorms Chance of T-Storm Chance of T-Storm Chance of Showers Chance of T-Storm Chance of T-Storm
Hi: 75°FHi: 24°C
 Lo: 61°FLo: 16°C Hi: 81°FHi: 27°C
 Lo: 71°FLo: 22°C Hi: 89°FHi: 32°C
 Hi: 85°FHi: 29°C
Lo: 65°FLo: 18°C		 Hi: 85°FHi: 29°C
Lo: 65°FLo: 18°C		 Lo: 70°FLo: 21°C Hi: 85°FHi: 29°C
 Lo: 69°FLo: 21°C Hi: 81°FHi: 27°C
Lo: 69°FLo: 21°C		 Hi: 81°FHi: 27°C
Lo: 69°FLo: 21°C
POP: 30% POP: 50% POP: 70% POP: 70% POP: 50% POP: 50% POP: 20% POP: 40% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 127 PM CDT Sun Sep 13 2026 Clayton, IL Weather - WeatherWorld.com

Trending Headlines

Clayton Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Clayton Quick Facts

National Two Day Weather Forecast


E-mail the Clayton Weather Forecast

Voice your opinion or tell us about page issues...

Clayton Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 230 PM CDT Sun Sep 13 2026

Key Messages

  • Summertime heat and humidity returns Tuesday.
  • Chances of showers and thunderstorms each day are mainly confined to northeast Missouri and west-central Illinois.

Aviation

/18Z TAFS THROUGH 00Z TUESDAY/... Issued at 1212 PM CDT Sun Sep 13 2026

A few showers and thunderstorms are possible this afternoon in southeast Missouri, though south of the terminals. A better chance exists mid-late Monday morning in northeast Missouri and west-central Illinois. Have therefore added a PROB30 group at ...