National Weather Service Forecast for: Lee's Summit MO
Issued by: National Weather Service Kansas City/Pleasant Hill, MO
Updated: 2:21 am CDT Aug 20, 2026
 
Overnight

Overnight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 66. Calm wind.
Patchy Fog

 Thursday

Thursday: Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 83. Calm wind becoming northeast around 6 mph in the afternoon.
Patchy Fog
then Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 67. East northeast wind around 5 mph becoming light and variable after midnight.
Mostly Clear

 Friday

Friday: Sunny, with a high near 89. Light and variable wind becoming south southwest around 5 mph in the morning.
Sunny

 Friday
Night
Friday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Light east southeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Partly Cloudy
then Chance
T-storms
 Saturday

Saturday: A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Slight Chance
T-storms
 Saturday
Night
Saturday Night: Mostly clear, with a low around 65.
Mostly Clear

 Sunday

Sunday: Partly sunny, with a high near 82.
Partly Sunny

 Sunday
Night
Sunday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Mostly Cloudy
then Chance
T-storms
Lo 66 °F Hi 83 °F Lo 67 °F Hi 89 °F Lo 68 °F Hi 86 °F Lo 65 °F Hi 82 °F Lo 65 °F

Hazardous Weather Outlook
 

Overnight
 
 Patchy fog after 5am. Otherwise, partly cloudy, with a low around 66. Calm wind.
Thursday
 
 Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 83. Calm wind becoming northeast around 6 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 67. East northeast wind around 5 mph becoming light and variable after midnight.
Friday
 
 Sunny, with a high near 89. Light and variable wind becoming south southwest around 5 mph in the morning.
Friday Night
 
 A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Light east southeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
 
 A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Saturday Night
 
 Mostly clear, with a low around 65.
Sunday
 
 Partly sunny, with a high near 82.
Sunday Night
 
 A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Monday
 
 A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Monday Night
 
 Partly cloudy, with a low around 68.
Tuesday
 
 Mostly sunny, with a high near 88.
Tuesday Night
 
 Partly cloudy, with a low around 68.
Wednesday
 
 Mostly sunny, with a high near 88.

 

Forecast from NOAA-NWS for Lee's Summit MO.