Weather forecast for 10 days
Saint Charles, MO

Weather forecast for the weekend

Saturday, Jun 21.

Sunny
5:35 am

8:32 pm
CDT
Sunny
97°F / 75°F
  • Wind: 14mph SSW
  • Humidity: 56%
  • Precip. probability: 4%
  • Precipitation: 0"
  • UV index: 9
On Saturday, June 21, sun-filled conditions are expected to persist.
Anticipated temperature values will span from a steamy 96.8°F down to a warm 75.2°F.
The forecast high of 96.8°F is more in line with July's average of 86.7°F than June's 84.2°F.
Sunrise will be at 5:35 am and sunset at 8:32 pm; the daylight will last for 14h and 56min.

Sunday, Jun 22.

Sunny
5:36 am

8:32 pm
CDT
Sunny
97°F / 75°F
  • Wind: 12mph SSW
  • Humidity: 52%
  • Precip. probability: 4%
  • Precipitation: 0"
  • UV index: 9
On Sunday, June 22, skies are expected to be clear and full of sunshine.
The maximum forecasted temperature is a torrid 96.8°F, while the minimum temperature will be a temperate 75.2°F.
It will be hotter on Sunday, with temperatures aligning more closely with July's 86.7°F than June's 84.2°F.
Sunrise will be at 5:36 am and sunset at 8:32 pm; the daylight will last for 14h and 56min.

Frequently asked questions

What is the weather forecast for Saint Charles for Saturday?
On Saturday, in Saint Charles, the outlook remains bright and sunny.
What will be the highest temperature on Saturday?
On Saturday, the highest temperature will be 96.8°F, while the lowest temperature will be 75.2°F.
What is the weather forecast for Saint Charles for Sunday?
On Sunday, in Saint Charles, the outlook remains bright and sunny.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 96.8°F, while the lowest temperature will be 75.2°F.
What is the weather forecast for Saint Charles for the next ten days?
In Saint Charles, a combination of mostly clear and cloud-filled weather is forecasted for the next ten days.
How hot will it be in the next ten days?
The maximum temperature will range between 89.6°F and 96.8°F, while the minimum temperature will be between 66.2°F and 77°F.
Combining with the humidity, the maximum feel-like temperature will range between 98.6°F and 114.8°F.
What will be the hottest and the coldest days?
With a maximum temperature of 96.8°F, Saturday through Monday will be the hottest days. With a maximum temperature of 89.6°F, next Friday and Saturday will be the coldest days in Saint Charles.

Long-term weather forecast

ThuJun 19.
  • min.
  • 66°F
Mostly Clear
Mostly Clear
  • Wind: 4mph SSW
  • Humidity: 78%
  • UV index: 0
  • Precip. probability: 7%
  • Precipitation: 0"
  • 5:35 am 8:31 pm CDT
FriJun 20.
  • 93°F
  • 77°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph SSW
  • Humidity: 56%
  • UV index: 9
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:35 am 8:31 pm CDT
SatJun 21.
  • 97°F
  • 75°F
Sunny
Sunny
  • Wind: 14mph SSW
  • Humidity: 56%
  • UV index: 9
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:35 am 8:32 pm CDT
SunJun 22.
  • 97°F
  • 75°F
Sunny
Sunny
  • Wind: 12mph SSW
  • Humidity: 52%
  • UV index: 9
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:36 am 8:32 pm CDT
MonJun 23.
  • 97°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Wind: 9mph SSW
  • Humidity: 53%
  • UV index: 9
  • Precip. probability: 14%
  • Precipitation: 0"
  • 5:36 am 8:32 pm CDT
TueJun 24.
  • 95°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph SSW
  • Humidity: 57%
  • UV index: 9
  • Precip. probability: 18%
  • Precipitation: 0"
  • 5:36 am 8:32 pm CDT
WedJun 25.
  • 95°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Wind: 8mph SSW
  • Humidity: 56%
  • UV index: 9
  • Precip. probability: 21%
  • Precipitation: 0"
  • 5:36 am 8:32 pm CDT
ThuJun 26.
  • 93°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Wind: 9mph SW
  • Humidity: 56%
  • UV index: 9
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:37 am 8:32 pm CDT
FriJun 27.
  • 90°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:37 am 8:32 pm CDT
SatJun 28.
  • 90°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WSW
  • Humidity: 61%
  • UV index: 9
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:38 am 8:32 pm CDT
For the next ten days, a combination of bright and overcast weather is anticipated.
Rain is not forecasted in Saint Charles in the upcoming period.
In the coming days, the highest temperature will range between 89.6°F and 96.8°F, while the low temperature range extends from 66.2°F to 77°F.
Saturday through Monday, with the highest temperature of 96.8°F, will be the hottest days; with a maximum temperature of 89.6°F, next Friday and Saturday will be the coldest days.
Including the humidity's impact, the maximum feel-like temperature may increase substantially and range between a sweltering 98.6°F and a life-threatening 114.8°F.
Updated: Jun 20, 2025 @ 01:46:05 UTC
Published by: Weather U.S. | About Us
Data Sources | |
Weather Forecasting & Climate
Share