Weather forecast for todayCollinsville, IL
Weather forecast for today
Current condition 2:43 am CDT
- 50°F
- Feels like:50°F
Clear
- Precipitation: 0"
- Wind: 0mphW 280°
- Humidity: 91%
- Dewpoint: 48°F
- Pressure: 30.34"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
In Collinsville, at the moment, the atmosphere is fresh and open, with clear skies above.
The temperature is a cool 50°F. The current temperature is far from today's maximum-anticipated 75.2°F.
The temperature is a cool 50°F. The current temperature is far from today's maximum-anticipated 75.2°F.
Tuesday Oct 20, 2026
- 75°F
- 43°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphESE 118°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:14 am CDT
- Sunset: 6:14 pm CDT
- details ▼
On Tuesday, October 20, sunshine and minimal clouds are in the outlook.
Temperatures will see a substantial oscillation, reaching a high of a moderately hot 75.2°F and dropping to a low of a frosty 42.8°F.
The expected high of 75.2°F appears seasonally off, better matching September's typical values.
Sunrise will be at 7:14 am and sunset at 6:14 pm; the daylight will last for 11h and 1min.
Temperatures will see a substantial oscillation, reaching a high of a moderately hot 75.2°F and dropping to a low of a frosty 42.8°F.
The expected high of 75.2°F appears seasonally off, better matching September's typical values.
Sunrise will be at 7:14 am and sunset at 6:14 pm; the daylight will last for 11h and 1min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 73°C.
Coldest hour: 6 am 45°C.
Coldest hour: 6 am 45°C.
Chance of precipitation
Highest chance: 9 pm - 12 am 15%.
Hourly weather forecast
- 4 am
- 48°F
- Feels like:48°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 0mphE 92°
- Humidity: 94%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 45°F
- Feels like:45°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphE 95°
- Humidity: 93%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:14 am
- 8 am
- 46°F
- Feels like:46°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphE 96°
- Humidity: 93%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 59°F
- Feels like:59°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphESE 117°
- Humidity: 67%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 68°F
- Feels like:68°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphSE 141°
- Humidity: 46%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 72°F
- Feels like:72°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphSE 136°
- Humidity: 37%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 72°F
- Feels like:72°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphESE 118°
- Humidity: 35%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphESE 102°
- Humidity: 46%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:14 pm
- 8 pm
- 57°F
- Feels like:57°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphE 95°
- Humidity: 70%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 52°F
- Feels like:52°F
Mostly Clear
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 1mphESE 108°
- Humidity: 81%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Today, in Collinsville, primarily sunny and occasionally cloudy weather is predicted.
The temperature will vary between the highest temperature of 73.4°F and the lowest temperature of 44.6°F. The warmest part of the day is expected around 3 pm.
The maximum temperature will align more closely with September's average high of 79°F than with October's 66°F. The expected low will be more comparable to what’s common in November than the current October average of 48.9°F.
The temperature will vary between the highest temperature of 73.4°F and the lowest temperature of 44.6°F. The warmest part of the day is expected around 3 pm.
The maximum temperature will align more closely with September's average high of 79°F than with October's 66°F. The expected low will be more comparable to what’s common in November than the current October average of 48.9°F.
Updated: Oct 20, 2026 @ 07:43:57 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
Currently (2:43 am CDT) it is 50°F in Collinsville.
Today, conditions will remain bright with clear skies.
Today, the maximum temperature in Collinsville will be 75.2°F, while the minimum temperature will be 42.8°F.
The highest temperature will be significantly higher than the average maximum of 66°F in October. The lowest temperature will be a couple of degrees lower than the average low of 48.9°F.
The highest temperature will be significantly higher than the average maximum of 66°F in October. The lowest temperature will be a couple of degrees lower than the average low of 48.9°F.
On Tuesday, in Collinsville, sunrise will be at 7:14 am and sunset at 6:14 pm (CDT).
Today, the daylight will last for 11h and 1min.
Collinsville, Illinois, USA
- en: Collinsville, Illinois, USA
- es: Collinsville, Illinois, EE.UU.
- hr: Kolinsvil, Ilinois, SAD
- mk: Kolinsvil, Ilinois, SAD
- sr: Kolinsvil, Ilinois, SAD
- zh: 科林斯维尔, 伊利诺伊, 美国
- Latitude: 38.670327°
- Longitude: -89.984548°
- Elevation: 568 ft
- Current time: 2:43am CDT
- Sunrise: 7:14 am CDT
- Sunset: 6:14 pm CDT
- Timezone: America/Chicago
Nearby Collinsville, Illinois, USA
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