Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Kansas City - Lee's Summit Regional Airport (KLXT)

Lat: 38.96°NLon: 94.37°WElev: 1004ft.

Mostly Cloudy

81°F

27°C

Humidity 79%
Wind Speed E 7 mph
Barometer 29.95 in (1013.2 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 29 Jul 8:53 pm CDT
Extended Forecast for

Grain Valley MO

  • Tonight

    Tonight: Mostly cloudy, with a low around 71. East wind 5 to 7 mph.

    Low: 71 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 3pm.  Partly sunny, with a high near 88. Southeast wind 5 to 7 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am.  Low around 71. Southeast wind around 7 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Slight Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms after 7am.  High near 90. Heat index values as high as 100. South wind around 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am.  Partly cloudy, with a low around 66. North northwest wind 9 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 71. East wind 5 to 7 mph.
Thursday
A chance of showers and thunderstorms, mainly before 3pm. Partly sunny, with a high near 88. Southeast wind 5 to 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 71. Southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms after 7am. High near 90. Heat index values as high as 100. South wind around 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am. Partly cloudy, with a low around 66. North northwest wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 86.
Sunday Night
Clear, with a low around 64.
Monday
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Grain Valley MO
 38.99°N 94.2°W (Elev. 843 ft)
9:02 pm CDT Jul 29, 2026
9pm CDT Jul 29, 2026-6pm CDT Aug 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database