Grain Valley Weather Forecast
- 69
- 79
Chance Thunderstorms
- 73
- 87
Chance Thunderstorms
- 75
- 95
Slight Chance Thunderstorms
- 75
- 95
Slight Chance Thunderstorms
- 76
- 96
Slight Chance Thunderstorms
- 77
- 98
Hot
Today 17 Jul Jackson
Mostly cloudy with a slight chance of Showers and Thunderstorms. Not as warm with Highs in the upper 70s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.
Tonight 17 Jul Jackson
Mostly cloudy with a slight chance of Showers and Thunderstorms. Lows in the upper 60s. East Winds around 5 Mph. Chance of rain 20 percent.
Grain Valley Temperature Statistics
July Temperature
Lee's Summit, Lee's Summit Municipal Airport (9.9 miles)
Lowest 1 July, 2025
66 °FAverage July
81.5 °FHighest 6 July, 2025
105.7 °F
Climate (2020–Present)
Lee's Summit, Lee's Summit Municipal Airport (9.9 miles)
Average Low 2020–2025
48 °FAverage 2020–2025
57.4 °FAverage High 2020–2025
67.1 °F