Weather forecast for 10 daysEast Saint Louis, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSSE 150°
  • Humidity: 38%
  • UV index: 5
  • Sunrise: 7:13 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
Today, expect consistent sunshine and open skies.
Significant temperature variations are predicted, soaring to a maximum of a breezy 66.2°F and descending to a minimum of a wintry 37.4°F.
Today's maximum temperature is expected to reflect the standard October high of 66.4°F.
Sunrise was at 7:13 am and sunset will be at 6:18 pm; the daylight will last for 11h and 5min.

10-day overview

Daily temperatures

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

Chance of precipitation

Highest chance: Tuesday 14%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSSE 150°
  • Humidity: 38%
  • UV index: 5
  • Sunrise: 7:13 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 3mphSE 146°
  • Humidity: 55%
  • UV index: 5
  • Sunrise: 7:14 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 2mphE 94°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphENE 69°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphENE 58°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphESE 114°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 79°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSE 145°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 82°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphSSW 196°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 79°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphSSW 195°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:07 pm CDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 77°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSE 141°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:22 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
In the days ahead, a combination of sunny and dull weather is expected.
Rain is not forecasted in East Saint Louis in the upcoming period.
Noticeable swings in temperature are expected throughout the forecast window. Highs will range from 66.2°F to 82.4°F, while there will be also a marked difference in overnight low temperatures, as the overnight lows will vary from 37.4°F to 50°F.
With the highest temperature of 82.4°F, next Sunday will be the warmest day; today is the coldest day, with a maximum temperature of 66.2°F.
Updated: Oct 18, 2026 @ 18:07:33 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

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

Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 37.4°F.
Today, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature today will be significantly lower than the average low of 49.1°F.

On Sunday, in East Saint Louis, sunrise was at 7:13 am and sunset will be at 6:18 pm (CDT).

In East Saint Louis, Illinois, the length of the day today will be 11h and 5min.