Weather forecast for todayWilliamson, IL

Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Weather forecast for today

Current condition 6:53 pm CDT

  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 2mphE 100°
  • Humidity: 52%
  • Dewpoint: 36°F
  • Pressure: 30.46"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Currently, in Williamson, an expansive clear sky makes for a picture-perfect day.
The temperature is a crisp 51.8°F. The current temperature is still relatively far from the anticipated minimum of 35.6°F.

Saturday Oct 17, 2026

  • min.
  • 36°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphSE 125°
  • Humidity: 75%
  • UV index: 0
  • Sunrise: 7:10 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
For the rest of Saturday, the atmosphere will remain completely clear and bright.
The lowest temperature will be an icy 35.6°F.
Sunrise was at 7:10 am and sunset at 6:17 pm; the daylight lasted for 11h and 7min.

Hourly overview

Hourly temperatures

Warmest hour: 7 pm 52°C.
Coldest hour: 3 am 39°C.

Chance of precipitation

Highest chance: 3 am 4%.

Hourly weather forecast

  • 7 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphENE 79°
  • Humidity: 55%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphE 89°
  • Humidity: 63%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphE 94°
  • Humidity: 69%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphESE 110°
  • Humidity: 77%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 124°
  • Humidity: 77%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 133°
  • Humidity: 80%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 1 am
  • 41°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphSE 144°
  • Humidity: 79%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphSE 140°
  • Humidity: 80%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 3 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphSE 141°
  • Humidity: 81%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphSSE 146°
  • Humidity: 80%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the rest of Saturday, the weather will be unstable. The temperature will be between a maximum of 51.8°F and a minimum of 42.8°F.
Updated: Oct 17, 2026 @ 23:53:24 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 6:53 pm CDT is 51.8°F.

Today, a cloudless sky and clear weather are expected.

On Saturday, in Williamson, sunrise was at 7:10 am and sunset at 6:17 pm (CDT).

Today in Williamson, the length of the day was 11h and 7min.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Latest news

Hurricane Polo Becomes Category 4 Storm in the Eastern Pacific as Heavy Rain Threatens Southwestern Mexico
Hurricane Polo Forecast: Category 4 Storm Threatens Mexico Coast With Heavy Rain, Flooding and Landslides
Category 5 Hurricane Lowell Spins South of Hawaii as Forecasters Watch Pacific Storms for Possible Surf, Rain and Coastal Impacts
Hurricane Lowell Forecast: Category 5 Storm South of Hawaii, Marie Watched Near Southern California
Tropical Storm Lala Rakes Hawaii With Fierce Winds, Flooding Rain and Landslides After Brushing the Big Island
Hawaii Storm Lala: Flooding, Landslides, Power Outages and More Than 100 Homes Damaged
Arctic air sweeps across the U.S., dumping deep snow on the Great Lakes and freezing the South
Arctic blast unleashes over a foot of snow in Great Lakes, record lows in the South and Florida
Tornado Tears Through Northeastern Wisconsin, Blackening the Midday Sky and Leaving Menasha Without Power
Wisconsin Tornado: Menasha and Appleton Hit by Destructive Storm, Power Out for Thousands
Deadly Flash Flooding Devastates North-Central West Virginia After Torrential Rain Swamps Homes, Roads and Businesses
West Virginia Flooding: 2 Dead, 1,000 Homes and Businesses Damaged After Flash Floods

Williamson, Illinois, USA

  • en: Williamson, Illinois, USA
  • es: Williamson, Illinois, EE.UU.
  • hr: Vilijamson, Ilinois, SAD
  • mk: Vilijamson, Ilinois, SAD
  • sr: Vilijamson, Ilinois, SAD
  • zh: 威廉森, 伊利诺伊, 美国
  • Latitude: 38.985602°
  • Longitude: -89.763983°
  • Elevation: 607 ft
  • Current time: 6:53pm CDT
  • Sunrise: 7:10 am CDT
  • Sunset: 6:17 pm CDT
  • Timezone: America/Chicago

Nearby Williamson, Illinois, USA

Illinois, USA - most visited locations