National Weather Service Forecast for: Leavenworth KS
Issued by: National Weather Service Kansas City/Pleasant Hill, MO
Updated: 11:07 pm CDT Sep 12, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.
Chance
T-storms

 Sunday

Sunday: Mostly cloudy, with a high near 76. East northeast wind 3 to 8 mph.
Mostly Cloudy

 Sunday
Night
Sunday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. East wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms

 Monday

Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 90. Heat index values as high as 101. Southeast wind 9 to 16 mph, with gusts as high as 31 mph.
Becoming
Sunny

 Monday
Night
Monday Night: A slight chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 71. South wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Mostly Clear
then Slight
Chance
T-storms
 Tuesday

Tuesday: Showers, with thunderstorms also possible after 4pm. High near 80. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Showers
 Tuesday
Night
Tuesday Night: Showers, with thunderstorms also possible after 7pm. Low around 64. Chance of precipitation is 90%.
Showers

 Wednesday

Wednesday: Showers likely and possibly a thunderstorm before 1pm. Partly sunny, with a high near 83. Chance of precipitation is 70%.
Showers
Likely

 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Chance of precipitation is 40%.
Partly Cloudy
then Chance
T-storms
Lo 64 °F Hi 76 °F Lo 63 °F Hi 90 °F Lo 71 °F Hi 80 °F Lo 64 °F Hi 83 °F Lo 69 °F

Hazardous Weather Outlook
 

Tonight
 
 A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
 
 Mostly cloudy, with a high near 76. East northeast wind 3 to 8 mph.
Sunday Night
 
 A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. East wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
 
 Mostly cloudy through mid morning, then gradual clearing, with a high near 90. Heat index values as high as 101. Southeast wind 9 to 16 mph, with gusts as high as 31 mph.
Monday Night
 
 A slight chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 71. South wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Tuesday
 
 Showers, with thunderstorms also possible after 4pm. High near 80. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
 
 Showers, with thunderstorms also possible after 7pm. Low around 64. Chance of precipitation is 90%.
Wednesday
 
 Showers likely and possibly a thunderstorm before 1pm. Partly sunny, with a high near 83. Chance of precipitation is 70%.
Wednesday Night
 
 A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Chance of precipitation is 40%.
Thursday
 
 A chance of showers before 1pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Thursday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
Friday
 
 A chance of showers. Mostly sunny, with a high near 79. Chance of precipitation is 40%.
Friday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Saturday
 
 A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Leavenworth KS.