Weather forecast for 10 daysWilliamson, IL

10-day overview

Daily temperatures

Warmest day: today 79°C.
Coldest period: Friday - Saturday 57°C.

Chance of precipitation

Highest chance: Wednesday 73%.

Long-term weather forecast

  • Thursday
  • Oct 29, 2026
  • 79°F
  • 57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 8mphWSW 237°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:23 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Friday
  • Oct 30, 2026
  • 75°F
  • 57°F
Cloudy
Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 9mphE 101°
  • Humidity: 64%
  • UV index: 2
  • Sunrise: 7:24 am CDT
  • Sunset: 6:00 pm CDT
  • ▼
  • Saturday
  • Oct 31, 2026
  • 68°F
  • 55°F
Cloudy
Cloudy
  • Precip. probability: 13%
  • Precipitation: 0.08"
  • Wind: 8mphE 100°
  • Humidity: 58%
  • UV index: 2
  • Sunrise: 7:25 am CDT
  • Sunset: 5:59 pm CDT
  • ▼
  • Sunday
  • Nov 1, 2026
  • 70°F
  • 57°F
AM Showers
AM Showers
  • Precip. probability: 48%
  • Precipitation: 0.04"
  • Wind: 9mphSE 143°
  • Humidity: 80%
  • UV index: 2
  • Sunrise: 7:26 am CDT
  • Sunset: 5:58 pm CDT
  • ▼
  • Monday
  • Nov 2, 2026
  • 72°F
  • 61°F
PM Showers
PM Showers
  • Precip. probability: 48%
  • Precipitation: 0.16"
  • Wind: 13mphSSE 161°
  • Humidity: 78%
  • UV index: 1
  • Sunrise: 6:27 am CST
  • Sunset: 4:57 pm CST
  • ▼
  • Tuesday
  • Nov 3, 2026
  • 75°F
  • 59°F
Showers
Showers
  • Precip. probability: 43%
  • Precipitation: 0.47"
  • Wind: 16mphS 169°
  • Humidity: 67%
  • UV index: 2
  • Sunrise: 6:28 am CST
  • Sunset: 4:56 pm CST
  • ▼
  • Wednesday
  • Nov 4, 2026
  • 68°F
  • 48°F
Rain
Rain
  • Precip. probability: 73%
  • Precipitation: 0.28"
  • Wind: 11mphSSW 205°
  • Humidity: 75%
  • UV index: 2
  • Sunrise: 6:29 am CST
  • Sunset: 4:55 pm CST
  • ▼
  • Thursday
  • Nov 5, 2026
  • 59°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 12mphW 277°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 6:31 am CST
  • Sunset: 4:54 pm CST
  • ▼
  • Friday
  • Nov 6, 2026
  • 57°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 10mphNW 304°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 6:32 am CST
  • Sunset: 4:53 pm CST
  • ▼
  • Saturday
  • Nov 7, 2026
  • 57°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphNW 305°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 6:33 am CST
  • Sunset: 4:52 pm CST
  • ▼
Over the next ten days, a mix of gloomy, wet and sunny weather is anticipated.
Rainfall is anticipated on Saturday through Wednesday.
The temperature will vary considerably in the upcoming days. Forecast highs will fluctuate between 57.2°F and 78.8°F, while the lowest night temperatures will vary also significantly, as the lowest temperatures will be recorded between 37.4°F and 60.8°F.
With a high of 78.8°F, today is the warmest day; next Friday and Saturday, with the highest temperature of 57.2°F, will be the coldest days.
Updated: Oct 29, 2026 @ 11:04:59 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

In Williamson, a combination of cloudy, showery and mostly clear weather is forecasted for the next ten days.

Rainfall is forecasted for Saturday through Wednesday in Williamson. With moderate precipitation of 0.47", Tuesday will be the day with the most rainfall.

The maximum temperature will vary between 57.2°F and 78.8°F, as the minimum temperature will vary between 37.4°F and 60.8°F.

Today is the warmest day, with a maximum temperature of 78.8°F. The coldest days will be next Friday and Saturday, with a maximum of 57.2°F.

On Saturday, expect persistent cloudiness.

On Saturday, there is a low chance of minimal precipitation in Williamson.

On Saturday, the maximum temperature will be 68°F, while the minimum temperature will be 55.4°F.

On Sunday, a few scattered rain showers could develop in the morning.

On Sunday, there is a low chance of minimal precipitation in Williamson.

On Sunday, the highest temperature will be 69.8°F, while the lowest temperature will be 57.2°F.