Weather forecast for 10 daysWentzville, MO

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSE 165°
  • Humidity: 46%
  • UV index: 5
  • Sunrise: 7:16 am CDT
  • Sunset: 6:20 pm CDT
  • ▼
On Sunday, in Wentzville, sunshine and minimal clouds are in the outlook.
A considerable disparity in temperature is expected, reaching up to a maximum of a breezy 66.2°F and falling to a minimum of a wintry 37.4°F.
The high is predicted to coincide with October's normal of 65.7°F.
Sunrise was at 7:16 am and sunset will be at 6:20 pm; the daylight will last for 11h and 5min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 81°C.
Coldest day: today 66°C.

Chance of precipitation

Highest chance: Tuesday 27.10. 10%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSE 165°
  • Humidity: 46%
  • UV index: 5
  • Sunrise: 7:16 am CDT
  • Sunset: 6:20 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 3mphSSE 163°
  • Humidity: 56%
  • UV index: 5
  • Sunrise: 7:17 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 3mphSE 144°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphS 180°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:16 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 3mphSSE 157°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSE 139°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 79°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSSE 158°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:22 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 81°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphSSW 211°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:23 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 79°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphSW 216°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:24 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 77°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 6mphS 178°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:25 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
Weather patterns suggest that a combination of mostly clear and cloud-filled weather is forecasted.
Rain is not expected in Wentzville in the upcoming days.
Significant changes in temperature are expected in the upcoming period. Forecast highs will fluctuate between 66.2°F and 80.6°F, while the difference in minimum temperatures will be also substantial, as nighttime lows are forecast to fall between 37.4°F and 51.8°F.
With the highest temperature of 80.6°F, next Sunday will be the warmest day; today is the coldest day, with a maximum temperature of 66.2°F.
Updated: Oct 18, 2026 @ 14:31:27 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Wentzville, sun-filled conditions are expected to persist.

Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 37.4°F.
Today, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature today will be significantly lower than the average low of 48.2°F.

On Sunday, in Wentzville, sunrise was at 7:16 am and sunset will be at 6:20 pm (CDT).

In Wentzville, today, there will be 11h and 5min of daylight.