Weather forecast for tomorrowChesterfield, MO

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 72°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphSSE 156°
  • Humidity: 54%
  • UV index: 5
  • Sunrise: 7:15 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
On Monday, in Chesterfield, predominantly sunny weather will make for pleasant outdoor conditions.
Dramatic temperature shifts from a high of a pleasant 71.6°F to a low of a cold 41°F are expected.
Forecasted temperatures are trending relatively higher than October's climate norm of 66.4°F.
Sunrise will be at 7:15 am and sunset at 6:18 pm; tomorrow's daylight will last for 11h and 3min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 70°C.
Coldest hour: 6 am 37°C.

Chance of precipitation

Highest chance: 6 am 6%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphS 177°
  • Humidity: 89%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphS 171°
  • Humidity: 95%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphSSW 203°
  • Humidity: 100%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 0mphS 189°
  • Humidity: 100%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:15 am
  • 8 am
  • 41°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphSSE 168°
  • Humidity: 95%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSSE 156°
  • Humidity: 62%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphS 178°
  • Humidity: 41%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSE 145°
  • Humidity: 35%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 70°F
  • Feels like:
    70°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSE 148°
  • Humidity: 34%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphE 97°
  • Humidity: 48%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:18 pm
  • 8 pm
  • 57°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphESE 110°
  • Humidity: 66%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphSE 126°
  • Humidity: 78%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of dry and sunny and dull weather is expected.
The temperature will be between a minimum of 37.4°F and a maximum of 69.8°F. The warmest part of the day will be from 2 pm to 4 pm.
The temperature is expected to be slightly warmer than the average peak in October, which is 66.4°F. The lowest temperature is more comparable to November's average minimum of 38.1°F than the usual minimum of 48.7°F in October.
Updated: Oct 18, 2026 @ 11:01:17 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, a pleasant, mostly sunny outlook is in place.

Tomorrow, the maximum temperature will be 71.6°F, while the minimum temperature will be 41°F.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 66.4°F in October. The lowest temperature will be also moderately lower than the average low of 48.7°F.

On Monday, in Chesterfield, sunrise will be at 7:15 am and sunset at 6:18 pm (CDT).

In Chesterfield, tomorrow, there will be 11h and 3min of daylight.