Weather forecast for 10 days
Saint Charles, MO

Weather forecast for the weekend

Saturday, May 3.

Thunderstorms
5:59 am

7:57 pm
CDT
Thunderstorms
55°F / 46°F
  • Wind: 11mph NNW
  • Humidity: 82%
  • Precip. probability: 100%
  • Precipitation: 0.67"
  • UV index: 2
Today, in Saint Charles, unstable atmospheric conditions may lead to thunderstorms.
The chance of rainfall is high, and precipitation will be moderate. Temperatures will experience a minor oscillation, reaching a high of a refreshing 55.4°F and dropping to a low of a frosty 46.4°F.
The forecast high of 55.4°F aligns more closely with April's typical high of 65.3°F than with May's usual 74.8°F.
Sunrise was at 5:59 am and sunset will be at 7:57 pm; the daylight will last for 13h and 58min.

Sunday, May 4.

Mostly Cloudy
5:58 am

7:58 pm
CDT
Mostly Cloudy
64°F / 48°F
  • Wind: 13mph N
  • Humidity: 58%
  • Precip. probability: 8%
  • Precipitation: 0"
  • UV index: 7
Tomorrow, in Saint Charles, expect a cloud-dominated atmosphere throughout.
Rainfall is not predicted. A temperature range of an enjoyable 64.4°F to a chilly 48.2°F is expected.
The temperature of 64.4°F aligns more with what is typical in April than what is normal in May.
Sunrise will be at 5:58 am and sunset at 7:58 pm; tomorrow's daylight will last for 14h and 0min.

Frequently asked questions

What is the weather forecast for Saint Charles for tomorrow?
On Sunday, clouds will dominate overhead, keeping the atmosphere dull.
Will it rain tomorrow?
No, it will not rain tomorrow.
What will be the highest temperature tomorrow?
Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 48.2°F.
The highest temperature will be noticeably lower than the average maximum of 74.8°F in May. The lowest temperature tomorrow will be also noticeably lower than the average low of 57.6°F.
When is the sunrise / sunset tomorrow?
On Sunday, in Saint Charles, sunrise will be at 5:58 am and sunset at 7:58 pm (CDT).
How long will the day be tomorrow in Saint Charles?
In Saint Charles, the length of the day tomorrow will be 14h and 0min.
What is the weather forecast for Saint Charles for the next ten days?
In Saint Charles, a combination of predominantly cloudy and occasionally stormy and rain-soaked weather is expected for the next ten days.
Will it rain in the next ten days?
Rainfall is predicted for Saturday and Wednesday in Saint Charles. Saturday, with moderate precipitation of 0.67", will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will range between 55.4°F and 77°F, while the minimum temperature will vary between 46.4°F and 57.2°F.
What will be the warmest and the coldest days?
The warmest days will be next Sunday and Monday, with a maximum of 77°F. Today is the coldest day, with a maximum temperature of 55.4°F.

Long-term weather forecast

SatMay 3.
  • 55°F
  • 46°F
Thunderstorms
Thunderstorms
  • Wind: 11mph NNW
  • Humidity: 82%
  • UV index: 2
  • Precip. probability: 100%
  • Precipitation: 0.67"
  • 5:59 am 7:57 pm CDT
SunMay 4.
  • 64°F
  • 48°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 13mph N
  • Humidity: 58%
  • UV index: 7
  • Precip. probability: 8%
  • Precipitation: 0"
  • 5:58 am 7:58 pm CDT
MonMay 5.
  • 64°F
  • 46°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 8mph N
  • Humidity: 61%
  • UV index: 6
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:57 am 7:59 pm CDT
TueMay 6.
  • 75°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph ESE
  • Humidity: 57%
  • UV index: 8
  • Precip. probability: 7%
  • Precipitation: 0.04"
  • 5:56 am 8:00 pm CDT
WedMay 7.
  • 66°F
  • 55°F
AM Showers
AM Showers
  • Wind: 9mph E
  • Humidity: 70%
  • UV index: 4
  • Precip. probability: 33%
  • Precipitation: 0.16"
  • 5:55 am 8:01 pm CDT
ThuMay 8.
  • 70°F
  • 52°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph ENE
  • Humidity: 69%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:54 am 8:02 pm CDT
FriMay 9.
  • 68°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph NE
  • Humidity: 61%
  • UV index: 8
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:53 am 8:03 pm CDT
SatMay 10.
  • 73°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph NE
  • Humidity: 59%
  • UV index: 8
  • Precip. probability: 17%
  • Precipitation: 0"
  • 5:52 am 8:04 pm CDT
SunMay 11.
  • 77°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph NE
  • Humidity: 57%
  • UV index: 8
  • Precip. probability: 10%
  • Precipitation: 0"
  • 5:51 am 8:05 pm CDT
MonMay 12.
  • 77°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph E
  • Humidity: 58%
  • UV index: 8
  • Precip. probability: 11%
  • Precipitation: 0"
  • 5:50 am 8:06 pm CDT
Over the next ten days, a mix of primarily cloudy and occasionally unstable and rain-filled weather is anticipated.
Rainfall is expected on Saturday and Wednesday.
Substantial differences in temperature are forecasted throughout the forecast window. Maximum temperatures are forecasted between 55.4°F and 77°F, while the forecast minimum temperature falls between 46.4°F and 57.2°F.
Next Sunday and Monday, with the highest temperature of 77°F, will be the warmest days; today is the coldest day, with a maximum temperature of 55.4°F.
Updated: May 3, 2025 @ 18:57:00 UTC
Published by: Weather U.S. | About Us
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