Weather forecast for tomorrow
Wednesday, Jun 18.
5:33 am
8:28 pm
CDT
8:28 pm
CDT
PM Thunderstorms
84°F / 66°F
- Wind: 19mph SW
- Humidity: 74%
- Precip. probability: 40%
- Precipitation: 0.28"
- UV index: 8
Tomorrow, in Collinsville, cloud build-up may lead to afternoon thunderstorms.
The chance of rainfall is low, and light precipitation is predicted. Temperatures are expected to range from a maximum of a temperate 84.2°F to a minimum of an enjoyable 66.2°F.
The maximum heat index, which adjusts the air temperature based on humidity, is assessed at a blazing 91.4°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The forecasted maximum temperature will closely reflect June's average high of 83.3°F.
Sunrise will be at 5:33 am and sunset at 8:28 pm; tomorrow's daylight will last for 14h and 55min.
The chance of rainfall is low, and light precipitation is predicted. Temperatures are expected to range from a maximum of a temperate 84.2°F to a minimum of an enjoyable 66.2°F.
The maximum heat index, which adjusts the air temperature based on humidity, is assessed at a blazing 91.4°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The forecasted maximum temperature will closely reflect June's average high of 83.3°F.
Sunrise will be at 5:33 am and sunset at 8:28 pm; tomorrow's daylight will last for 14h and 55min.
Frequently asked questions
What is the weather forecast for Collinsville for tomorrow?
Tomorrow, rumbling thunderstorms could affect the area later in the afternoon.
Will it rain tomorrow?
Light precipitation of 0.28" is expected. The possibility of rainfall is 40%.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature will be 84.2°F, while the lowest temperature will be 66.2°F. The maximum heat index, which reflects the perceived temperature due to humidity levels, is estimated at 91.4°F.
The maximum temperature will be in line with the average highest temperature of 83.3°F in June. The lowest temperature will be also in line with the average low of 66.6°F.
The maximum temperature will be in line with the average highest temperature of 83.3°F in June. The lowest temperature will be also in line with the average low of 66.6°F.
When are sunrise and sunset tomorrow?
On Wednesday, in Collinsville, sunrise will be at 5:33 am and sunset at 8:28 pm (CDT).
How long will the day be tomorrow?
In Collinsville, the length of the day tomorrow will be 14h and 55min.
Hourly weather forecast
12 am
- 77°F
- Feels like:
81°F
Mostly Cloudy
- Wind: 5mph S
- Pressure: 29.8"Hg
- Humidity: 83%
- Precip. probability: 15%
- Precipitation: 0"
- Visibility: 10mi
2 am
- 75°F
- Feels like:
79°F
Partly Cloudy
- Wind: 6mph S
- Pressure: 29.77"Hg
- Humidity: 87%
- Precip. probability: 8%
- Precipitation: 0"
- Visibility: 9mi
4 am
- 73°F
- Feels like:
75°F
Showers
- Wind: 6mph SSW
- Pressure: 29.77"Hg
- Humidity: 90%
- Precip. probability: 40%
- Precipitation: 0.08"
- Visibility: 7mi
Sunrise: 5:33 am
6 am
- 73°F
- Feels like:
75°F
Mostly Cloudy
- Wind: 6mph S
- Pressure: 29.77"Hg
- Humidity: 93%
- Precip. probability: 16%
- Precipitation: 0"
- Visibility: 10mi
8 am
- 77°F
- Feels like:
82°F
Mostly Cloudy
- Wind: 9mph SSW
- Pressure: 29.8"Hg
- Humidity: 86%
- Precip. probability: 14%
- Precipitation: 0"
- Visibility: 10mi
10 am
- 81°F
- Feels like:
86°F
Mostly Cloudy
- Wind: 14mph SSW
- Pressure: 29.77"Hg
- Humidity: 73%
- Precip. probability: 14%
- Precipitation: 0"
- Visibility: 10mi
12 pm
- 82°F
- Feels like:
86°F
Partly Cloudy
- Wind: 17mph SW
- Pressure: 29.77"Hg
- Humidity: 69%
- Precip. probability: 23%
- Precipitation: 0"
- Visibility: 10mi
2 pm
- 82°F
- Feels like:
88°F
Mostly Cloudy
- Wind: 19mph SW
- Pressure: 29.77"Hg
- Humidity: 70%
- Precip. probability: 24%
- Precipitation: 0"
- Visibility: 10mi
4 pm
- 82°F
- Feels like:
86°F
Few Showers
- Wind: 19mph WSW
- Pressure: 29.74"Hg
- Humidity: 69%
- Precip. probability: 30%
- Precipitation: 0.04"
- Visibility: 9mi
6 pm
- 79°F
- Feels like:
84°F
Scattered Thunderstorms
- Wind: 12mph WSW
- Pressure: 29.74"Hg
- Humidity: 72%
- Precip. probability: 40%
- Precipitation: 0.04"
- Visibility: 7mi
8 pm
- 77°F
- Feels like:
81°F
Scattered Thunderstorms
- Wind: 9mph W
- Pressure: 29.77"Hg
- Humidity: 76%
- Precip. probability: 45%
- Precipitation: 0.08"
- Visibility: 7mi
Sunset: 8:28 pm
10 pm
- 73°F
- Feels like:
75°F
Mostly Cloudy
- Wind: 7mph W
- Pressure: 29.83"Hg
- Humidity: 82%
- Precip. probability: 18%
- Precipitation: 0"
- Visibility: 7mi
Tomorrow, on Wednesday, a combination of primarily cloud-filled and occasionally thunderstorm-prone and rain-soaked weather is forecasted.
Rainfall is forecasted from 3 am to 5 am, and from 3 pm to 8 pm and at 11 pm. The most intense rain will be falling at 3 am, 4 am, 8 pm and 11 pm.
The temperature will vary between a minimum of 71.6°F and a maximum of 82.4°F. The warmest part of the day will be from noon to 4 pm.
The high temperature is expected to be consistent with June's usual value of 83.3°F. The expected low will be also consistent with the average minimum in June, which is 66.6°F.
Rainfall is forecasted from 3 am to 5 am, and from 3 pm to 8 pm and at 11 pm. The most intense rain will be falling at 3 am, 4 am, 8 pm and 11 pm.
The temperature will vary between a minimum of 71.6°F and a maximum of 82.4°F. The warmest part of the day will be from noon to 4 pm.
The high temperature is expected to be consistent with June's usual value of 83.3°F. The expected low will be also consistent with the average minimum in June, which is 66.6°F.
Updated: Jun 17, 2025 @ 10:25:08 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