38°42'N / 90°20'W / Altitude 189 m / 12:50 2026/09/19, America/Chicago (UTC-5)
From: 2026/09/19, 04:15
To: 2026/09/19, 19:15
* WHAT...Heat index values up to 101. * WHERE...Portions of south central and southwest Illinois and central, east central, and southeast Missouri. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
St. Louis,St. Louis
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
NWS St Louis MO
2026/09/19, 04:15