St. Joseph, Missouri Weather:
Active Weather Warnings
Wednesday, September 2, 2026
Sunny Weather
Day 99°
Night 73°
Precipitation 3 %
Wind 12 mph
UV Index (0 - 11+) 7

Weather Alerts and Warnings for

Moderate Expected Likely

Heat Advisory

Heat Advisory issued September 1 at 11:06AM CDT until September 4 at 8:00PM CDT by NWS Kansas City/Pleasant Hill MO
Sep 1, 11:06 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.
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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, 11:30 AM Source: NWS Alert