Weather forecast for 10 daysWilliamson, IL

Weather forecast for the weekend

Saturday Oct 31, 2026

  • 70°F
  • 55°F
Cloudy
Cloudy
  • Precip. probability: 21%
  • Precipitation: 0.08"
  • Wind: 8mphESE 103°
  • Humidity: 59%
  • UV index: 2
  • Sunrise: 7:25 am CDT
  • Sunset: 5:59 pm CDT
  • ▼
On Saturday, in Williamson, cloudy weather is anticipated.
Minimal precipitation is predicted. Temperatures will oscillate between an agreeable 69.8°F at their highest and a moderate 55.4°F at their lowest.
The highest temperature is predicted to be moderately higher than the average October peak of 65.3°F.
Sunrise will be at 7:25 am and sunset at 5:59 pm; the daylight will last for 10h and 34min.

Sunday Nov 1, 2026

  • 68°F
  • 57°F
AM Showers
AM Showers
  • Precip. probability: 45%
  • Precipitation: 0.04"
  • Wind: 9mphSE 141°
  • Humidity: 81%
  • UV index: 2
  • Sunrise: 6:26 am CST
  • Sunset: 4:58 pm CST
  • ▼
On Sunday, in Williamson, patchy morning showers will bring occasional rain.
Minimal precipitation is anticipated. The temperature is forecasted to vary between a delightful 68°F and a moderate 57.2°F.
The temperature will be in line with October's average maximum of 65.3°F.
Sunrise will be at 6:26 am and sunset at 4:58 pm; the daylight will last for 10h and 32min.

10-day overview

Daily temperatures

Maximum temperature: 75°C.
Coldest day: Saturday 07.11. 55°C.

Chance of precipitation

Highest chance: Wednesday 74%.

Long-term weather forecast

  • Thursday
  • Oct 29, 2026
  • min.
  • 57°F
Showers Early
Showers Early
  • Precip. probability: 53%
  • Precipitation: 0"
  • Wind: 6mphNE 42°
  • Humidity: 85%
  • UV index: 0
  • Sunrise: 7:23 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Friday
  • Oct 30, 2026
  • 75°F
  • 57°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 10mphESE 104°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:24 am CDT
  • Sunset: 6:00 pm CDT
  • ▼
  • Saturday
  • Oct 31, 2026
  • 70°F
  • 55°F
Cloudy
Cloudy
  • Precip. probability: 21%
  • Precipitation: 0.08"
  • Wind: 8mphESE 103°
  • Humidity: 59%
  • UV index: 2
  • Sunrise: 7:25 am CDT
  • Sunset: 5:59 pm CDT
  • ▼
  • Sunday
  • Nov 1, 2026
  • 68°F
  • 57°F
AM Showers
AM Showers
  • Precip. probability: 45%
  • Precipitation: 0.04"
  • Wind: 9mphSE 141°
  • Humidity: 81%
  • UV index: 2
  • Sunrise: 6:26 am CST
  • Sunset: 4:58 pm CST
  • ▼
  • Monday
  • Nov 2, 2026
  • 72°F
  • 61°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • Wind: 12mphSSE 164°
  • Humidity: 78%
  • UV index: 1
  • Sunrise: 6:27 am CST
  • Sunset: 4:57 pm CST
  • ▼
  • Tuesday
  • Nov 3, 2026
  • 75°F
  • 57°F
Showers
Showers
  • Precip. probability: 51%
  • Precipitation: 0.59"
  • Wind: 16mphS 171°
  • Humidity: 65%
  • UV index: 2
  • Sunrise: 6:28 am CST
  • Sunset: 4:56 pm CST
  • ▼
  • Wednesday
  • Nov 4, 2026
  • 64°F
  • 48°F
Rain
Rain
  • Precip. probability: 74%
  • Precipitation: 0.31"
  • Wind: 9mphSSW 211°
  • Humidity: 83%
  • UV index: 2
  • Sunrise: 6:29 am CST
  • Sunset: 4:55 pm CST
  • ▼
  • Thursday
  • Nov 5, 2026
  • 61°F
  • 46°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 10mphWNW 283°
  • Humidity: 75%
  • UV index: 2
  • Sunrise: 6:31 am CST
  • Sunset: 4:54 pm CST
  • ▼
  • Friday
  • Nov 6, 2026
  • 59°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 7mphNW 311°
  • Humidity: 73%
  • UV index: 3
  • Sunrise: 6:32 am CST
  • Sunset: 4:53 pm CST
  • ▼
  • Saturday
  • Nov 7, 2026
  • 55°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 7mphNNW 344°
  • Humidity: 72%
  • UV index: 3
  • Sunrise: 6:33 am CST
  • Sunset: 4:52 pm CST
  • ▼
Forecasts for the ten-day outlook show that a combination of overcast and rain-filled weather is expected.
Rainfall is anticipated on Saturday through Wednesday.
The temperature will vary considerably in the upcoming period. Maximum temperatures are forecasted between 55.4°F and 75.2°F, while the variation in nighttime lows will be also notably wide, as the minimum temperature is expected to range between 35.6°F and 60.8°F.
With a maximum temperature of 75.2°F, Friday and Tuesday will be the warmest days; the lowest daytime temperature of the period will be reached on next Saturday, peaking at 55.4°F.
Updated: Oct 30, 2026 @ 00:14:15 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

In Williamson, a combination of dull and rainy weather is anticipated for the next ten days.

Rainfall is predicted for Saturday through Wednesday in Williamson. Tuesday, with moderate precipitation of 0.59", will be the day with the most rainfall.

The maximum temperature will vary between 55.4°F and 75.2°F, as the minimum temperature will vary between 35.6°F and 60.8°F.

With a maximum temperature of 75.2°F, Friday and Tuesday will be the warmest days. The coldest day will be next Saturday, with a maximum of 55.4°F.

On Saturday, the sky will remain cloudy throughout.

On Saturday, there is a low probability of minimal rainfall in Williamson.

On Saturday, the maximum temperature will be 69.8°F, while the minimum temperature will be 55.4°F.

On Sunday, expect intermittent showers throughout the morning hours.

On Sunday, there is a low probability of minimal rainfall in Williamson.

On Sunday, the maximum temperature will be 68°F, while the minimum temperature will be 57.2°F.