Weather forecast for 10 daysWilliamson, IL
10-day overview
Daily temperatures
Warmest day: today 81°C.
Coldest period: Friday - Saturday 57°C.
Coldest period: Friday - Saturday 57°C.
Chance of precipitation
Highest chance: Wednesday 65%.
Long-term weather forecast
- Thursday
- Oct 29, 2026
- 81°F
- 55°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 8mphWSW 237°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:23 am CDT
- Sunset: 6:02 pm CDT
- details ▼
- Friday
- Oct 30, 2026
- 75°F
- 57°F
Mostly Cloudy
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 9mphESE 102°
- Humidity: 64%
- UV index: 2
- Sunrise: 7:24 am CDT
- Sunset: 6:00 pm CDT
- details ▼
- Saturday
- Oct 31, 2026
- 70°F
- 55°F
Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 7mphESE 103°
- Humidity: 59%
- UV index: 2
- Sunrise: 7:25 am CDT
- Sunset: 5:59 pm CDT
- details ▼
- Sunday
- Nov 1, 2026
- 72°F
- 57°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0.04"
- Wind: 8mphSE 146°
- Humidity: 76%
- UV index: 3
- Sunrise: 7:26 am CDT
- Sunset: 5:58 pm CDT
- details ▼
- Monday
- Nov 2, 2026
- 73°F
- 59°F
Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 12mphSSE 160°
- Humidity: 75%
- UV index: 1
- Sunrise: 6:27 am CST
- Sunset: 4:57 pm CST
- details ▼
- Tuesday
- Nov 3, 2026
- 75°F
- 57°F
Showers
- Precip. probability: 57%
- Precipitation: 0.2"
- Wind: 15mphS 172°
- Humidity: 68%
- UV index: 1
- Sunrise: 6:28 am CST
- Sunset: 4:56 pm CST
- details ▼
- Wednesday
- Nov 4, 2026
- 68°F
- 46°F
Showers
- Precip. probability: 65%
- Precipitation: 0.35"
- Wind: 9mphSSW 196°
- Humidity: 77%
- UV index: 2
- Sunrise: 6:29 am CST
- Sunset: 4:55 pm CST
- details ▼
- Thursday
- Nov 5, 2026
- 61°F
- 41°F
AM Showers
- Precip. probability: 32%
- Precipitation: 0.47"
- Wind: 11mphWNW 302°
- Humidity: 75%
- UV index: 3
- Sunrise: 6:31 am CST
- Sunset: 4:54 pm CST
- details ▼
- Friday
- Nov 6, 2026
- 57°F
- 37°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0.08"
- Wind: 9mphNW 323°
- Humidity: 73%
- UV index: 3
- Sunrise: 6:32 am CST
- Sunset: 4:53 pm CST
- details ▼
- Saturday
- Nov 7, 2026
- 57°F
- 41°F
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 7mphNNW 336°
- Humidity: 69%
- UV index: 3
- Sunrise: 6:33 am CST
- Sunset: 4:52 pm CST
- details ▼
Models point to a combination of dull, damp and bright weather is anticipated.
Rainfall is expected on Sunday, Tuesday through next Friday.
Significant changes in temperature are expected across the forecast period. The temperature is expected to swing from 57.2°F up to 80.6°F, while the lowest night temperatures will vary also significantly, as temperatures overnight will fluctuate from 37.4°F up to 59°F.
Today is the warmest day, with a maximum temperature of 80.6°F; with a maximum temperature of 57.2°F, next Friday and Saturday will be the coldest days in Williamson.
Rainfall is expected on Sunday, Tuesday through next Friday.
Significant changes in temperature are expected across the forecast period. The temperature is expected to swing from 57.2°F up to 80.6°F, while the lowest night temperatures will vary also significantly, as temperatures overnight will fluctuate from 37.4°F up to 59°F.
Today is the warmest day, with a maximum temperature of 80.6°F; with a maximum temperature of 57.2°F, next Friday and Saturday will be the coldest days in Williamson.
Updated: Oct 29, 2026 @ 06:22:37 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
In Williamson, a combination of gloomy, wet and clear weather is anticipated for the next ten days.
Rainfall is expected on Sunday, Tuesday through next Friday in Williamson. Next Thursday, with moderate precipitation of 0.47", will be the day with the most rainfall.
The maximum temperature will vary between 57.2°F and 80.6°F, as the minimum temperature will range between 37.4°F and 59°F.
Today is the warmest day, with a maximum temperature of 80.6°F. With a maximum temperature of 57.2°F, next Friday and Saturday will be the coldest days.
On Saturday, expect a gray and cloudy sky.
On Saturday, the maximum temperature will be 69.8°F, while the minimum temperature will be 55.4°F.
On Sunday, in Williamson, expect continuous cloudiness with subdued daylight.
On Sunday, there is a low chance of minimal precipitation in Williamson.
On Sunday, the maximum temperature will be 71.6°F, while the minimum temperature will be 57.2°F.
