Weather forecast for 10 daysChester, IL
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 36°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphSSE 147°
- Humidity: 54%
- UV index: 5
- Sunrise: 7:10 am CDT
- Sunset: 6:17 pm CDT
- details ▼
Today, the outlook remains bright and sunny.
The temperature is forecasted to vary significantly from a high of a comfortable 66.2°F to a low of an icy 35.6°F.
The maximum temperature for today is predicted to match the regular October high of 67.1°F.
Sunrise will be at 7:10 am and sunset at 6:17 pm; the daylight will last for 11h and 7min.
The temperature is forecasted to vary significantly from a high of a comfortable 66.2°F to a low of an icy 35.6°F.
The maximum temperature for today is predicted to match the regular October high of 67.1°F.
Sunrise will be at 7:10 am and sunset at 6:17 pm; the daylight will last for 11h and 7min.
10-day overview
Daily temperatures
Warmest day: Sunday 25.10. 81°C.
Coldest day: today 66°C.
Coldest day: today 66°C.
Chance of precipitation
Highest chance: tomorrow 7%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 66°F
- 36°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphSSE 147°
- Humidity: 54%
- UV index: 5
- Sunrise: 7:10 am CDT
- Sunset: 6:17 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 72°F
- 41°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 4mphSSE 147°
- Humidity: 54%
- UV index: 5
- Sunrise: 7:11 am CDT
- Sunset: 6:16 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 73°F
- 41°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 4mphENE 57°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:12 am CDT
- Sunset: 6:15 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 75°F
- 41°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 4mphNNE 16°
- Humidity: 50%
- UV index: 5
- Sunrise: 7:13 am CDT
- Sunset: 6:13 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 75°F
- 43°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 5mphNNE 15°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:14 am CDT
- Sunset: 6:12 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 43°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphE 96°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:15 am CDT
- Sunset: 6:11 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 79°F
- 45°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphSE 144°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:16 am CDT
- Sunset: 6:09 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 81°F
- 48°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphSSW 196°
- Humidity: 46%
- UV index: 4
- Sunrise: 7:17 am CDT
- Sunset: 6:08 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 77°F
- 46°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 6mphSSW 194°
- Humidity: 48%
- UV index: 4
- Sunrise: 7:18 am CDT
- Sunset: 6:07 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 77°F
- 50°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphS 172°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:19 am CDT
- Sunset: 6:06 pm CDT
- details ▼
Over the next ten days, a combination of mostly clear and cloudy weather is forecasted.
Rain is not expected in Chester in the upcoming period.
Noticeable swings in temperature are expected in the next ten days. Maximum temperatures are forecasted between 66.2°F and 80.6°F, while the fluctuation in night temperatures will be also significant, as nighttime lows are forecast to fall between 35.6°F and 50°F.
Next Sunday will be the warmest day, with a maximum temperature of 80.6°F; today is the coldest day, with a maximum temperature of 66.2°F.
Rain is not expected in Chester in the upcoming period.
Noticeable swings in temperature are expected in the next ten days. Maximum temperatures are forecasted between 66.2°F and 80.6°F, while the fluctuation in night temperatures will be also significant, as nighttime lows are forecast to fall between 35.6°F and 50°F.
Next Sunday will be the warmest day, with a maximum temperature of 80.6°F; today is the coldest day, with a maximum temperature of 66.2°F.
Updated: Oct 18, 2026 @ 08:12:30 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Today, conditions remain stable and sunny, with little cloud presence.
Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 35.6°F.
Today, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature will be significantly lower than the average low of 49.1°F.
Today, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature will be significantly lower than the average low of 49.1°F.
On Sunday, in Chester, sunrise will be at 7:10 am and sunset at 6:17 pm (CDT).
In Chester, today, there will be 11h and 7min of daylight.
