National Weather Service Forecast for: Merriam KS
Issued by: National Weather Service Kansas City/Pleasant Hill, MO
Updated: 5:47 pm CDT Jul 16, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 73. South southeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Mostly Clear
 Friday

Friday: Sunny, with a high near 91. Heat index values as high as 96. Southwest wind 5 to 10 mph.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 75. South southwest wind 8 to 10 mph, with gusts as high as 22 mph.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 95. Heat index values as high as 102. Southwest wind around 9 mph.
Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 76. South southwest wind 5 to 7 mph.
Mostly Clear

 Sunday

Sunday: Sunny, with a high near 96.
Sunny

 Sunday
Night
Sunday Night: Mostly clear, with a low around 77.
Mostly Clear

 Monday

Monday: Sunny and hot, with a high near 99.
Hot

 Monday
Night
Monday Night: Mostly clear, with a low around 79.
Mostly Clear
Lo 73 °F Hi 91 °F Lo 75 °F Hi 95 °F Lo 76 °F Hi 96 °F Lo 77 °F Hi 99 °F Lo 79 °F

Hazardous Weather Outlook
 

Tonight
 
 A chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 73. South southeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
 
 Sunny, with a high near 91. Heat index values as high as 96. Southwest wind 5 to 10 mph.
Friday Night
 
 Mostly clear, with a low around 75. South southwest wind 8 to 10 mph, with gusts as high as 22 mph.
Saturday
 
 Sunny, with a high near 95. Heat index values as high as 102. Southwest wind around 9 mph.
Saturday Night
 
 Mostly clear, with a low around 76. South southwest wind 5 to 7 mph.
Sunday
 
 Sunny, with a high near 96.
Sunday Night
 
 Mostly clear, with a low around 77.
Monday
 
 Sunny and hot, with a high near 99.
Monday Night
 
 Mostly clear, with a low around 79.
Tuesday
 
 Mostly sunny and hot, with a high near 97.
Tuesday Night
 
 Partly cloudy, with a low around 73.
Wednesday
 
 Mostly sunny, with a high near 88.
Wednesday Night
 
 Partly cloudy, with a low around 69.
Thursday
 
 Mostly sunny, with a high near 90.

 

Forecast from NOAA-NWS for Merriam KS.