Weather forecast for 10 daysCaseyville, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSSE 161°
  • Humidity: 52%
  • UV index: 5
  • Sunrise: 7:12 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
On Sunday, in Caseyville, conditions remain stable and sunny, with little cloud presence.
Temperature measurements will peak at an enjoyable 66.2°F, with a considerable drop to a low of a wintry 37.4°F.
Tomorrow's peak is anticipated to reflect the usual October high temperature of 66°F.
Sunrise will be at 7:12 am and sunset at 6:17 pm; tomorrow's daylight will last for 11h and 5min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 82°C.
Coldest day: tomorrow 66°C.

Chance of precipitation

Highest chance: 5%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 37°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphESE 104°
  • Humidity: 73%
  • UV index: 0
  • Sunrise: 7:11 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSSE 161°
  • Humidity: 52%
  • UV index: 5
  • Sunrise: 7:12 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphSSE 159°
  • Humidity: 54%
  • UV index: 5
  • Sunrise: 7:13 am CDT
  • Sunset: 6:16 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphESE 102°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphSW 223°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphNNE 24°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 79°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphESE 110°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 81°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSE 139°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 82°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSSW 197°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 79°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSSE 167°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:07 pm CDT
  • ▼
Throughout the next ten days, a combination of clear and overcast weather is forecasted.
Rain is not expected in Caseyville in the upcoming period.
Temperature differences will be noticeable over the next several days. Maximum temperatures are forecasted between 66.2°F and 82.4°F, while the variation in nighttime lows will be also notably wide, as the minimum temperature is expected to range between 37.4°F and 50°F.
With the highest temperature of 82.4°F, next Sunday will be the warmest day; Sunday will be the coldest day, with the highest temperature of 66.2°F.
Updated: Oct 17, 2026 @ 21:02:27 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, the weather remains calm, bright, and sunny.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be noticeably lower than the average low of 48.9°F.

On Sunday, in Caseyville, sunrise will be at 7:12 am and sunset at 6:17 pm (CDT).

In Caseyville, tomorrow, there will be 11h and 5min of daylight.