Weather forecast for tomorrow
Wednesday, Jun 18.
5:50 am
8:20 pm
CDT
8:20 pm
CDT
Mostly Sunny
91°F / 72°F
- Wind: 17mph SSW
- Humidity: 74%
- Precip. probability: 14%
- Precipitation: 0.35"
- UV index: 10
On Wednesday, June 18, mainly sunny conditions will dominate the day.
With a low probability, light precipitation is expected for tomorrow. Predicted temperatures will peak at a blazing 91.4°F and dip to a minimum of an agreeable 71.6°F.
The maximum heat index, which modifies the air temperature to account for humidity, is evaluated at a dangerously hot 113°F. Note that heat index values are valued for light wind and location in the shade. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The temperature will be in line with June's average maximum of 88.3°F.
Sunrise will be at 5:50 am and sunset at 8:20 pm; tomorrow's daylight will last for 14h and 30min.
With a low probability, light precipitation is expected for tomorrow. Predicted temperatures will peak at a blazing 91.4°F and dip to a minimum of an agreeable 71.6°F.
The maximum heat index, which modifies the air temperature to account for humidity, is evaluated at a dangerously hot 113°F. Note that heat index values are valued for light wind and location in the shade. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The temperature will be in line with June's average maximum of 88.3°F.
Sunrise will be at 5:50 am and sunset at 8:20 pm; tomorrow's daylight will last for 14h and 30min.
Frequently asked questions
What is the weather forecast for Saint Charles for tomorrow?
Tomorrow, mostly sunny weather is likely, with high visibility.
Will it rain tomorrow?
Light precipitation of 0.35" is forecasted. The likelihood of rainfall is low at 14%.
What will be the maximum temperature in Saint Charles tomorrow?
Tomorrow, the highest temperature will be 91.4°F, while the lowest temperature will be 71.6°F. The maximum heat index, which combines relative humidity and air temperature, is assessed at 113°F.
The highest temperature will be in line with the average maximum of 88.3°F in June. The lowest temperature will be also in line with the average low of 71.4°F.
The highest temperature will be in line with the average maximum of 88.3°F in June. The lowest temperature will be also in line with the average low of 71.4°F.
When are sunrise and sunset tomorrow?
On Wednesday, in Saint Charles, sunrise will be at 5:50 am and sunset at 8:20 pm (CDT).
How long will the day be tomorrow?
In Saint Charles, tomorrow, there will be 14h and 30min of daylight.
Hourly weather forecast
12 am
- 79°F
- Feels like:
84°F
Mostly Cloudy
- Wind: 9mph S
- Pressure: 29.88"Hg
- Humidity: 88%
- Precip. probability: 4%
- Precipitation: 0"
- Visibility: 10mi
2 am
- 77°F
- Feels like:
82°F
Partly Cloudy
- Wind: 9mph S
- Pressure: 29.85"Hg
- Humidity: 92%
- Precip. probability: 7%
- Precipitation: 0"
- Visibility: 10mi
4 am
- 77°F
- Feels like:
82°F
Partly Cloudy
- Wind: 9mph S
- Pressure: 29.85"Hg
- Humidity: 93%
- Precip. probability: 7%
- Precipitation: 0"
- Visibility: 10mi
Sunrise: 5:50 am
6 am
- 75°F
- Feels like:
81°F
Partly Cloudy
- Wind: 9mph S
- Pressure: 29.91"Hg
- Humidity: 97%
- Precip. probability: 8%
- Precipitation: 0"
- Visibility: 9mi
8 am
- 79°F
- Feels like:
84°F
Mostly Cloudy
- Wind: 11mph SSW
- Pressure: 29.94"Hg
- Humidity: 94%
- Precip. probability: 14%
- Precipitation: 0"
- Visibility: 9mi
10 am
- 82°F
- Feels like:
90°F
Mostly Cloudy
- Wind: 14mph SSW
- Pressure: 29.94"Hg
- Humidity: 83%
- Precip. probability: 8%
- Precipitation: 0"
- Visibility: 10mi
12 pm
- 86°F
- Feels like:
97°F
Partly Cloudy
- Wind: 15mph SSW
- Pressure: 29.94"Hg
- Humidity: 71%
- Precip. probability: 4%
- Precipitation: 0"
- Visibility: 10mi
2 pm
- 90°F
- Feels like:
99°F
Mostly Sunny
- Wind: 17mph SSW
- Pressure: 29.91"Hg
- Humidity: 63%
- Precip. probability: 3%
- Precipitation: 0"
- Visibility: 10mi
4 pm
- 90°F
- Feels like:
100°F
Mostly Sunny
- Wind: 17mph SSW
- Pressure: 29.88"Hg
- Humidity: 60%
- Precip. probability: 2%
- Precipitation: 0"
- Visibility: 10mi
6 pm
- 88°F
- Feels like:
99°F
Sunny
- Wind: 12mph SSW
- Pressure: 29.88"Hg
- Humidity: 64%
- Precip. probability: 3%
- Precipitation: 0"
- Visibility: 10mi
8 pm
- 84°F
- Feels like:
93°F
Partly Cloudy
- Wind: 9mph SSW
- Pressure: 29.88"Hg
- Humidity: 74%
- Precip. probability: 8%
- Precipitation: 0"
- Visibility: 10mi
Sunset: 8:20 pm
10 pm
- 81°F
- Feels like:
90°F
Mostly Cloudy
- Wind: 9mph SSW
- Pressure: 29.91"Hg
- Humidity: 82%
- Precip. probability: 21%
- Precipitation: 0"
- Visibility: 10mi
Tomorrow, a combination of cloudy and clear weather is expected.
The temperature will be between a minimum of 75.2°F and a maximum of 89.6°F. The feels-like temperature will be between a minimum of 80.6°F and a maximum of 100.4°F. The hottest part of the day will be from 2 pm to 5 pm.
The maximum temperature will be in line with the average high of 88.3°F in June. The night temperature will be also comparable to the standard June low of 71.4°F.
The temperature will be between a minimum of 75.2°F and a maximum of 89.6°F. The feels-like temperature will be between a minimum of 80.6°F and a maximum of 100.4°F. The hottest part of the day will be from 2 pm to 5 pm.
The maximum temperature will be in line with the average high of 88.3°F in June. The night temperature will be also comparable to the standard June low of 71.4°F.
Updated: Jun 17, 2025 @ 22:18:18 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