Weather forecast for 10 daysChapin, IL

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 57°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphSW 223°
  • Humidity: 40%
  • UV index: 3
  • Sunrise: 7:14 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
Today, expect bright skies and plenty of sunshine.
A temperature range of a moderate 57.2°F to a cold 37.4°F is forecasted.
Forecast models suggest colder conditions, with a peak that mirrors November's climate average rather than October's.
Sunrise was at 7:14 am and sunset will be at 6:19 pm; the daylight will last for 11h and 5min.

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphS 178°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
On Sunday, in Chapin, sunny skies are in store, with excellent visibility.
Significant temperature fluctuations from a high of an enjoyable 66.2°F to a low of an icy 37.4°F are expected.
The maximum temperature will align with October's usual high of 64°F.
Sunrise will be at 7:15 am and sunset at 6:18 pm; tomorrow's daylight will last for 11h and 3min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 81°C.
Coldest day: today 57°C.

Chance of precipitation

Highest chance: Monday 26.10. 8%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 57°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphSW 223°
  • Humidity: 40%
  • UV index: 3
  • Sunrise: 7:14 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphS 178°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphSSE 168°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:16 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphSE 135°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphS 188°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphESE 113°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSE 134°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 79°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSSE 156°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 81°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphSSW 205°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:22 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 77°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 6mphS 183°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:23 am CDT
  • Sunset: 6:07 pm CDT
  • ▼
For the coming ten days, a combination of sun-filled and gloomy weather is anticipated.
Rain is not forecasted in Chapin in the upcoming period.
Temperature differences will be noticeable throughout the forecast window. Forecast highs will fluctuate between 57.2°F and 80.6°F, while the fluctuation in night temperatures will be also significant, as the overnight lows will vary from 37.4°F to 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 57.2°F.
Updated: Oct 17, 2026 @ 19:49:15 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Chapin, expect sunny weather with a crisp, clear sky.

Tomorrow, the highest temperature in Chapin 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 will be noticeably lower than the average low of 47.5°F.

On Sunday, in Chapin, sunrise will be at 7:15 am and sunset at 6:18 pm (CDT).

Tomorrow, the daylight will last for 11h and 3min.