Weather forecast for 10 daysLake Saint Louis, MO
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSSE 159°
- Humidity: 38%
- UV index: 5
- Sunrise: 7:15 am CDT
- Sunset: 6:20 pm CDT
- details ▼
Today, sunny skies and pleasant visibility are expected.
The temperature is forecasted to vary significantly from a high of a comfortable 66.2°F to a low of an icy 37.4°F.
Today's top temperature will adhere to the average October high temperature of 65.7°F.
Sunrise was at 7:15 am and sunset will be at 6:20 pm; the daylight will last for 11h and 5min.
The temperature is forecasted to vary significantly from a high of a comfortable 66.2°F to a low of an icy 37.4°F.
Today's top temperature will adhere to the average October high temperature of 65.7°F.
Sunrise was at 7:15 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. 82°C.
Coldest day: today 66°C.
Coldest day: today 66°C.
Chance of precipitation
Highest chance: Tuesday 27.10. 7%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSSE 159°
- Humidity: 38%
- UV index: 5
- Sunrise: 7:15 am CDT
- Sunset: 6:20 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 72°F
- 43°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 3mphSSE 162°
- Humidity: 56%
- UV index: 5
- Sunrise: 7:16 am CDT
- Sunset: 6:19 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 73°F
- 43°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 3mphSE 143°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:17 am CDT
- Sunset: 6:18 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 75°F
- 45°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphS 182°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:18 am CDT
- Sunset: 6:16 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 43°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSSE 149°
- Humidity: 55%
- UV index: 4
- Sunrise: 7:19 am CDT
- Sunset: 6:15 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 45°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphSE 137°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:20 am CDT
- Sunset: 6:14 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 81°F
- 48°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphSSE 161°
- Humidity: 51%
- UV index: 4
- Sunrise: 7:21 am CDT
- Sunset: 6:12 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 82°F
- 50°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphSSW 208°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:22 am CDT
- Sunset: 6:11 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 79°F
- 50°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphSW 217°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:24 am CDT
- Sunset: 6:10 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 77°F
- 50°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphS 179°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:25 am CDT
- Sunset: 6:08 pm CDT
- details ▼
Forecasts for the ten-day outlook show that a combination of dry and sunny and gloomy weather is expected.
Rainfall is not forecasted in Lake Saint Louis in the upcoming days.
Noticeable swings in temperature are expected in the coming days. Maximum temperatures are forecasted between 66.2°F and 82.4°F, while the nightly low temperatures will show also a considerable swing, as the minimum temperature is expected to range between 37.4°F and 50°F.
The warmest day will be next Sunday, with a maximum of 82.4°F; today is the coldest day, with a maximum temperature of 66.2°F.
Rainfall is not forecasted in Lake Saint Louis in the upcoming days.
Noticeable swings in temperature are expected in the coming days. Maximum temperatures are forecasted between 66.2°F and 82.4°F, while the nightly low temperatures will show also a considerable swing, as the minimum temperature is expected to range between 37.4°F and 50°F.
The warmest day will be next Sunday, with a maximum of 82.4°F; today is the coldest day, with a maximum temperature of 66.2°F.
Updated: Oct 18, 2026 @ 17:47:25 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
Frequently asked questions
On Sunday, uninterrupted sunshine is anticipated.
Today, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
The maximum temperature today will be in line with the average highest temperature in October. The lowest temperature will be notably lower than the average low of 48.2°F.
The maximum temperature today will be in line with the average highest temperature in October. The lowest temperature will be notably lower than the average low of 48.2°F.
On Sunday, in Lake Saint Louis, sunrise was at 7:15 am and sunset will be at 6:20 pm (CDT).
Today, the daylight will last for 11h and 5min.
