Weather forecast for todayGlen Carbon, IL

Weather forecast for today

Current condition 9:23 am CDT

  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 1mphESE 110°
  • Humidity: 76%
  • Dewpoint: 50°F
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
At the moment, the weather is ideal, with the sun shining and the air feeling fresh.
The temperature is a refreshing 57.2°F. The current temperature is relatively far from the maximum of 75.2°F forecasted for today.

Wednesday Oct 21, 2026

  • 75°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSW 219°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
Today, expect bright skies and plenty of sunshine.
Significant temperature fluctuations from a high of a temperate 75.2°F to a low of a brisk 46.4°F are predicted.
With a forecast of 75.2°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise was at 7:15 am and sunset will be at 6:13 pm; the daylight will last for 10h and 58min.

Hourly overview

Hourly temperatures

Warmest period: 2 pm - 4 pm 73°C.
Coldest hour: 12 am 52°C.

Chance of precipitation

Highest chance: 12 am 2%.

Hourly weather forecast

  • 10 am
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphSE 124°
  • Humidity: 68%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 11 am
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphS 172°
  • Humidity: 55%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSSW 192°
  • Humidity: 47%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 1 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSW 221°
  • Humidity: 41%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSW 217°
  • Humidity: 38%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphWSW 242°
  • Humidity: 36%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphW 259°
  • Humidity: 36%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphWSW 246°
  • Humidity: 38%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphWSW 256°
  • Humidity: 46%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:13 pm
  • 7 pm
  • 63°F
  • Feels like:
    63°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 0mphNW 324°
  • Humidity: 63%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 59°F
  • Feels like:
    59°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphNNW 341°
  • Humidity: 72%
  • Pressure: 30.18"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 9 pm
  • 57°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 0mphNNE 29°
  • Humidity: 77%
  • Pressure: 30.21"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 10 pm
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphNNE 16°
  • Humidity: 80%
  • Pressure: 30.21"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 11 pm
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 0mphNNW 334°
  • Humidity: 83%
  • Pressure: 30.21"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Today, in Glen Carbon, bright and mostly sunny weather is expected.
The temperature will vary between a maximum of 73.4°F and a minimum of 53.6°F. The warmest part of the day will be from 2 pm to 4 pm.
The forecasted maximum is more comparable to September's typical high of 79°F than the average for October. The night temperature will be comparable to the standard October low of 48.9°F.
Updated: Oct 21, 2026 @ 14:23:08 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (9:23 am CDT) is 57.2°F.

On Wednesday, expect sunny weather with a crisp, clear sky.

Today, the highest temperature will be 75.2°F, while the lowest temperature will be 46.4°F.
The maximum temperature will be significantly higher than the average highest temperature of 66°F in October. The lowest temperature will be in line with the average low of 48.9°F.

On Wednesday, in Glen Carbon, sunrise was at 7:15 am and sunset will be at 6:13 pm (CDT).

In Glen Carbon, the length of the day today will be 10h and 58min.