Weather forecast for 10 daysClayton, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphS 182°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:20 pm CDT
  • ▼
Tomorrow, on Sunday, October 18, sunshine is also forecasted under mostly clear skies.
A high of a comfortable 66.2°F during the day contrasts markedly with a low of a cold 39.2°F at night.
The expected maximum is anticipated to be in line with the regular October temperature of 63.9°F.
Sunrise will be at 7:17 am and sunset at 6:20 pm; tomorrow's daylight will last for 11h and 2min.

10-day overview

Daily temperatures

Warmest period: Friday - Sunday 77°C.
Coldest day: tomorrow 66°C.

Chance of precipitation

Highest chance: 5%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 39°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphS 173°
  • Humidity: 74%
  • UV index: 0
  • Sunrise: 7:16 am CDT
  • Sunset: 6:21 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphS 182°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:20 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphS 169°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphSE 135°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphS 182°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphSE 143°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:22 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSE 139°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:23 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 8mphSSE 159°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:24 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphSSW 203°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:25 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 73°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphSSE 156°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:26 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
For the next ten days, a combination of dull and mostly clear weather is forecasted.
Rainfall is not predicted in Clayton in the upcoming days.
In the upcoming period, the maximum temperature will range between 66.2°F and 77°F, while the difference in minimum temperatures will be substantial, as temperatures overnight will fluctuate from 39.2°F up to 51.8°F.
With a maximum temperature of 77°F, Friday through next Sunday will be the warmest days; Sunday will be the coldest day, with the highest temperature of 66.2°F.
Updated: Oct 18, 2026 @ 02:27:10 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sun-filled conditions are expected to persist.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 39.2°F.
The maximum temperature will be in line with the average highest temperature of 63.9°F in October. Tomorrow, the lowest temperature will be moderately lower than the average low temperature.

On Sunday, in Clayton, sunrise will be at 7:17 am and sunset at 6:20 pm (CDT).

In Clayton, the length of the day tomorrow will be 11h and 2min.