Weather forecast for 10 daysGrain Valley, MO

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 68°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 13mphS 190°
  • Humidity: 57%
  • UV index: 5
  • Sunrise: 7:29 am CDT
  • Sunset: 6:34 pm CDT
  • ▼
Tomorrow, on Sunday, October 18, skies are expected to be clear and full of sunshine.
The predicted temperature range extends from a high of a pleasant 68°F to a low of a frosty 42.8°F.
October's typical peak of 65.1°F is anticipated to be mirrored in the day’s high.
Sunrise will be at 7:29 am and sunset at 6:34 pm; tomorrow's daylight will last for 11h and 5min.

10-day overview

Daily temperatures

Warmest period: Friday - Saturday 81°C.
Coldest day: tomorrow 68°C.

Chance of precipitation

Highest chance: Wednesday 15%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 41°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphS 179°
  • Humidity: 73%
  • UV index: 0
  • Sunrise: 7:28 am CDT
  • Sunset: 6:35 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 68°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 13mphS 190°
  • Humidity: 57%
  • UV index: 5
  • Sunrise: 7:29 am CDT
  • Sunset: 6:34 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphS 177°
  • Humidity: 54%
  • UV index: 5
  • Sunrise: 7:30 am CDT
  • Sunset: 6:32 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphS 169°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:31 am CDT
  • Sunset: 6:31 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 8mphSSW 192°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:32 am CDT
  • Sunset: 6:30 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 79°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphS 172°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:33 am CDT
  • Sunset: 6:28 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 81°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 11mphSSE 159°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:34 am CDT
  • Sunset: 6:27 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 81°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphS 176°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:35 am CDT
  • Sunset: 6:26 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 55°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphSSW 205°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:36 am CDT
  • Sunset: 6:24 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 79°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 7mphS 172°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:38 am CDT
  • Sunset: 6:23 pm CDT
  • ▼
Over the next ten days, conditions will reflect that primarily overcast and occasionally dry and sunny weather is forecasted.
Rainfall is not anticipated in Grain Valley in the upcoming days.
Significant changes in temperature are expected across the forecast period. The maximum temperature will vary between 68°F and 80.6°F, while the nightly low temperatures will show also a considerable swing, as the overnight lows will vary from 41°F to 57.2°F.
With a maximum temperature of 80.6°F, Friday and next Saturday will be the warmest days; with the highest temperature of 68°F, Sunday will be the coldest day.
Updated: Oct 18, 2026 @ 00:38:20 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Grain Valley, conditions will remain bright with clear skies.

Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 42.8°F.
The highest temperature will be in line with the average maximum of 65.1°F in October. The lowest temperature will be slightly cooler than the average low of 47.8°F.

On Sunday, in Grain Valley, sunrise will be at 7:29 am and sunset at 6:34 pm (CDT).

Tomorrow, the daylight will last for 11h and 5min.