Lenexa, Kansas Weather:
Active Weather Warnings
Thursday, September 3, 2026
Sunny Weather
Day 97°
Night 77°
Precipitation 5 %
Wind 12 mph
UV Index (0 - 11+) 7
Weather Forecast History
Last Year's Weather on This Day (September 3, 2025)

Day

88°

Night

59°

Weather Alerts and Warnings for

Moderate Expected Likely

Heat Advisory

Heat Advisory issued September 1 at 4:03AM CDT until September 4 at 8:00PM CDT by NWS Kansas City/Pleasant Hill MO
Sep 1, 4:03 AM Sep 4, 8:00 PM
WHAT: Heat index values up to 105.

WHERE: Portions of east central and northeast Kansas and central,
north central, northeast, northwest, and west central Missouri.

WHEN: Until 8 PM CDT Friday.

IMPACTS: Hot temperatures and high humidity may cause heat
illnesses.

ADDITIONAL DETAILS: While heat index values may not reach 105 each
day, the combination of the longevity of the heat and little or
limited relief during overnight periods have prompted the multi-day
Heat Advisory.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Updated: Sep 1, 10:22 AM Source: NWS Alert