Weather forecast for todayCollinsville, IL

Weather forecast for today

Current condition 10:51 am CDT

  • 52°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 7mphNNE 30°
  • Humidity: 65%
  • Dewpoint: 39°F
  • Pressure: 30.56"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
In Collinsville, currently, the sun is shining brightly, and temperatures are comfortable.
The temperature is a crisp 51.8°F, the apparent temperature is slightly different, calculated to be a brisk 48.2°F. The current temperature is a few degrees off the maximum of 60.8°F for today.

Saturday Oct 17, 2026

  • 61°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphN 358°
  • Humidity: 49%
  • UV index: 5
  • Sunrise: 7:11 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
On Saturday, October 17, clear and sunny conditions are expected.
The highest temperature will be a breezy 60.8°F, while the lowest predicted temperature is a wintry 37.4°F.
Today's maximum temperature is forecasted to be moderately lower than the usual 66°F high in October.
Sunrise was at 7:11 am and sunset will be at 6:19 pm; the daylight will last for 11h and 8min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 5 pm 59°C.
Coldest hour: 1 am 41°C.

Chance of precipitation

Highest chance: 1 am 2%.

Hourly weather forecast

  • 11 am
  • 52°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNNE 11°
  • Humidity: 63%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 54°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphNNE 12°
  • Humidity: 55%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 1 pm
  • 57°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphN 356°
  • Humidity: 48%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphN 2°
  • Humidity: 43%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphNNW 345°
  • Humidity: 39%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphNNW 343°
  • Humidity: 39%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNW 343°
  • Humidity: 40%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphN 11°
  • Humidity: 51%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:19 pm
  • 7 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphNE 45°
  • Humidity: 63%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphENE 77°
  • Humidity: 70%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphE 100°
  • Humidity: 76%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphSE 126°
  • Humidity: 81%
  • 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: 1mphSE 137°
  • Humidity: 83%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, clear skies and sunny weather are expected.
The temperature will vary between the lowest temperature of 42.8°F and the highest temperature of 59°F. The warmest part of the day will be from 3 pm to 5 pm.
The highest temperature today will be a few degrees lower than October's typical maximum temperature. Today, the overnight low is more consistent with November's usual minimum of 37.6°F than October's 48.9°F.
Updated: Oct 17, 2026 @ 15:51:29 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 10:51 am CDT is 51.8°F.

On Saturday, expect consistent sunshine and open skies.

Today, the highest temperature in Collinsville, Illinois, will be 60.8°F, while the lowest temperature will be 37.4°F.
The highest temperature will be a few degrees lower than the average maximum of 66°F in October. The lowest temperature will be uncommonly lower than the average low of 48.9°F.

On Saturday, in Collinsville, sunrise was at 7:11 am and sunset will be at 6:19 pm (CDT).

In Collinsville, the length of the day today will be 11h and 8min.