National Weather Service Forecast for: Leavenworth KS
Issued by: National Weather Service Kansas City/Pleasant Hill, MO
Updated: 11:42 pm CDT Jun 29, 2026
 
Overnight

Overnight: Partly cloudy, with a low around 78. South southwest wind around 14 mph, with gusts as high as 30 mph.
Partly Cloudy
Tuesday

Tuesday: Mostly sunny, with a high near 92. Heat index values as high as 103. South southwest wind 13 to 15 mph, with gusts as high as 32 mph.
Mostly Sunny
Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 76. South wind 10 to 13 mph, with gusts as high as 25 mph.
Partly Cloudy
Wednesday

Wednesday: Mostly sunny, with a high near 91. Heat index values as high as 100. South southwest wind 11 to 15 mph, with gusts as high as 28 mph.
Mostly Sunny
Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 76. South wind 8 to 13 mph, with gusts as high as 25 mph.
Partly Cloudy
Thursday

Thursday: Mostly sunny, with a high near 92.
Mostly Sunny
Thursday
Night
Thursday Night: Partly cloudy, with a low around 76.
Partly Cloudy
Friday

Friday: Mostly sunny, with a high near 94.
Mostly Sunny
Friday
Night
Friday Night: Partly cloudy, with a low around 75.
Partly Cloudy
Lo 78 °F Hi 92 °F Lo 76 °F Hi 91 °F Lo 76 °F Hi 92 °F Lo 76 °F Hi 94 °F Lo 75 °F

Hazardous Weather Outlook
Extreme Heat Warning
 

Overnight
 
Partly cloudy, with a low around 78. South southwest wind around 14 mph, with gusts as high as 30 mph.
Tuesday
 
Mostly sunny, with a high near 92. Heat index values as high as 103. South southwest wind 13 to 15 mph, with gusts as high as 32 mph.
Tuesday Night
 
Partly cloudy, with a low around 76. South wind 10 to 13 mph, with gusts as high as 25 mph.
Wednesday
 
Mostly sunny, with a high near 91. Heat index values as high as 100. South southwest wind 11 to 15 mph, with gusts as high as 28 mph.
Wednesday Night
 
Partly cloudy, with a low around 76. South wind 8 to 13 mph, with gusts as high as 25 mph.
Thursday
 
Mostly sunny, with a high near 92.
Thursday Night
 
Partly cloudy, with a low around 76.
Friday
 
Mostly sunny, with a high near 94.
Friday Night
 
Partly cloudy, with a low around 75.
Independence Day
 
Mostly sunny, with a high near 95.
Saturday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 40%.
Sunday
 
Partly sunny, with a high near 91.
Sunday Night
 
Partly cloudy, with a low around 70.
Monday
 
Mostly sunny, with a high near 90.

 

Forecast from NOAA-NWS for Leavenworth KS.