Station Name: St Charles 1E
Data Source: USGS

Elevation Above Sea Level: 446 feet

Nearest Address:
14580 Missouri Bottom Rd
St Charles, MO 63044
St. Louis County

GPS Coordinates: 38.7856, -90.4719

Nearby Water Temperatures

Heat Advisory issued July 20 at 8:23PM CDT until July 21 at 7:00PM CDT by NWS St Louis MO

Effective: Mon July 20, 2026, 8:23 PM
Expires: Tue July 21, 2026, 11:30 AM

* WHAT...Heat index values up to 109. * WHERE...Portions of south central and southwest Illinois and central, east central, and southeast Missouri. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Heat Advisory issued July 20 at 7:20PM CDT until July 21 at 7:00PM CDT by NWS St Louis MO

Effective: Mon July 20, 2026, 7:20 PM
Expires: Tue July 21, 2026, 10:30 AM

* WHAT...Heat index values up to 108. * WHERE...Portions of south central and southwest Illinois and central, east central, and southeast Missouri. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Heat Advisory issued July 21 at 2:48AM CDT until July 21 at 7:00PM CDT by NWS St Louis MO

Effective: Tue July 21, 2026, 2:48 AM
Expires: Tue July 21, 2026, 6:00 PM

* WHAT...Heat index values of 100 to 110 degrees. * WHERE...Portions of south central and southwest Illinois and central, east central, and southeast Missouri. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...This is the fourth straight day with heat index values of 100 degrees or higher over parts of the area.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.