Weather forecast for tomorrow
Friday, Apr 18.
6:17 am
7:41 pm
CDT
7:41 pm
CDT
Mostly Cloudy
81°F / 57°F
- Wind: 17mph SSW
- Humidity: 62%
- Precip. probability: 16%
- Precipitation: 0.47"
- UV index: 5
On Friday, April 18, gloomy and cloudy conditions will set the tone.
The chance of rain for tomorrow is low. However, predicted precipitation will be moderate. The temperature is expected to oscillate between a maximum of a moderately hot 80.6°F and a minimum of a refreshing 57.2°F.
The maximum heat index, which measures the combined effect of heat and moisture, is calculated to be 82.4°F.
The forecast high is higher and more aligned with what is typical in May than in April.
Sunrise will be at 6:17 am and sunset at 7:41 pm; tomorrow's daylight will last for 13h and 24min.
The chance of rain for tomorrow is low. However, predicted precipitation will be moderate. The temperature is expected to oscillate between a maximum of a moderately hot 80.6°F and a minimum of a refreshing 57.2°F.
The maximum heat index, which measures the combined effect of heat and moisture, is calculated to be 82.4°F.
The forecast high is higher and more aligned with what is typical in May than in April.
Sunrise will be at 6:17 am and sunset at 7:41 pm; tomorrow's daylight will last for 13h and 24min.
Frequently asked questions
What is the weather forecast for Collinsville for tomorrow?
On Friday, gray skies will define the day.
Will it rain tomorrow?
Moderate precipitation of 0.47" is forecasted in Collinsville. The possibility of rainfall is low at 16%.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 80.6°F, while the minimum temperature will be 57.2°F. The maximum heat index, which represents the influence of relative humidity on air temperature, is computed to be 82.4°F.
The highest temperature will be significantly higher than the average maximum of 64.9°F in April. The lowest temperature will be also uncommonly higher than the average low of 47.8°F.
The highest temperature will be significantly higher than the average maximum of 64.9°F in April. The lowest temperature will be also uncommonly higher than the average low of 47.8°F.
When is the sunrise / sunset tomorrow?
On Friday, in Collinsville, sunrise will be at 6:17 am and sunset at 7:41 pm (CDT).
How many hours of daylight will Collinsville have tomorrow?
In Collinsville, Illinois, the length of the day tomorrow will be 13h and 24min.
Hourly weather forecast
12 am
- 68°F
- Feels like:
68°F
Partly Cloudy
- Wind: 12mph S
- Pressure: 29.74"Hg
- Humidity: 64%
- Precip. probability: 3%
- Precipitation: 0"
- Visibility: 10mi
2 am
- 66°F
- Feels like:
66°F
Partly Cloudy
- Wind: 11mph S
- Pressure: 29.71"Hg
- Humidity: 69%
- Precip. probability: 5%
- Precipitation: 0"
- Visibility: 10mi
4 am
- 66°F
- Feels like:
66°F
Partly Cloudy
- Wind: 11mph S
- Pressure: 29.71"Hg
- Humidity: 74%
- Precip. probability: 6%
- Precipitation: 0"
- Visibility: 10mi
6 am
- 66°F
- Feels like:
66°F
Mostly Cloudy
- Wind: 11mph S
- Pressure: 29.71"Hg
- Humidity: 78%
- Precip. probability: 11%
- Precipitation: 0"
- Visibility: 10mi
Sunrise: 6:17 am
8 am
- 68°F
- Feels like:
68°F
Partly Cloudy
- Wind: 11mph S
- Pressure: 29.74"Hg
- Humidity: 78%
- Precip. probability: 5%
- Precipitation: 0"
- Visibility: 10mi
10 am
- 73°F
- Feels like:
73°F
Partly Cloudy
- Wind: 15mph SSW
- Pressure: 29.77"Hg
- Humidity: 66%
- Precip. probability: 3%
- Precipitation: 0"
- Visibility: 10mi
12 pm
- 77°F
- Feels like:
81°F
Mostly Cloudy
- Wind: 17mph SSW
- Pressure: 29.77"Hg
- Humidity: 56%
- Precip. probability: 1%
- Precipitation: 0"
- Visibility: 10mi
2 pm
- 79°F
- Feels like:
82°F
Mostly Cloudy
- Wind: 17mph SSW
- Pressure: 29.74"Hg
- Humidity: 55%
- Precip. probability: 5%
- Precipitation: 0"
- Visibility: 10mi
4 pm
- 79°F
- Feels like:
81°F
Cloudy
- Wind: 15mph SSW
- Pressure: 29.77"Hg
- Humidity: 55%
- Precip. probability: 5%
- Precipitation: 0"
- Visibility: 10mi
6 pm
- 77°F
- Feels like:
77°F
Cloudy
- Wind: 13mph SSW
- Pressure: 29.77"Hg
- Humidity: 62%
- Precip. probability: 12%
- Precipitation: 0"
- Visibility: 10mi
Sunset: 7:41 pm
8 pm
- 73°F
- Feels like:
73°F
Cloudy
- Wind: 12mph SSW
- Pressure: 29.83"Hg
- Humidity: 72%
- Precip. probability: 13%
- Precipitation: 0"
- Visibility: 10mi
10 pm
- 72°F
- Feels like:
73°F
Cloudy
- Wind: 11mph SSW
- Pressure: 29.85"Hg
- Humidity: 73%
- Precip. probability: 18%
- Precipitation: 0"
- Visibility: 10mi
Tomorrow, on Friday, primarily cloud-filled and occasionally mostly clear weather is predicted.
The temperature will be between the lowest temperature of 66.2°F and the highest temperature of 80.6°F. The warmest part of the day will be around 3 pm.
The maximum temperature will be more comparable to May's average high of 74.5°F than April's 64.9°F. Forecast models suggest a low also more similar to May's typical minimum of 57.6°F than April's usual 47.8°F.
The temperature will be between the lowest temperature of 66.2°F and the highest temperature of 80.6°F. The warmest part of the day will be around 3 pm.
The maximum temperature will be more comparable to May's average high of 74.5°F than April's 64.9°F. Forecast models suggest a low also more similar to May's typical minimum of 57.6°F than April's usual 47.8°F.
Updated: Apr 17, 2025 @ 18:29:33 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate