Active Weather Alerts
Extreme Heat Watch
Issued: 8:04 AM Jul. 21, 2025 – National Weather Service
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH THURSDAY EVENING... * WHAT...Dangerously hot conditions with heat index values up to 109 possible. * WHERE...Portions of south central, southwest, and west central Illinois and northeast Missouri. * WHEN...From Tuesday afternoon through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The long duration of this event is likely to worsen heat related impacts, and additional extensions may be needed beyond Thursday as forecast confidence increases. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. &&
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