| National Weather Service Forecast for:
St. Louis, MO Issued by: National Weather Service St. Louis/St. Charles, MO |
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| Updated: Thu, 02-Jul-2026 6:01am CDT | ||||||||||||||||||||||||||||||||||||||||
| Saint Louis | ||||||||||||||||||||||||||||||||||||||||
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Extreme Heat Warning issued July 2 at 3:21AM CDT until July 3 at 10:00PM CDT
| Today |
A slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 96. Heat index values as high as 109. South wind 2 to 7 mph. Chance of precipitation is 20%. |
| Tonight |
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79. Heat index values as high as 105. South wind 1 to 8 mph. Chance of precipitation is 20%. |
| Friday |
A slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 97. Heat index values as high as 109. South wind 1 to 7 mph. Chance of precipitation is 20%. |
| Friday Night |
A slight chance of showers and thunderstorms. Mostly clear, with a low around 77. Heat index values as high as 106. South wind 2 to 7 mph. Chance of precipitation is 20%. |
| Independence Day |
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny. High near 96, with temperatures falling to around 92 in the afternoon. Southwest wind around 5 mph. Chance of precipitation is 40%. |
| Saturday Night |
A chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 40%. |
| Sunday |
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 30%. |
| Sunday Night |
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Chance of precipitation is 20%. |
| Monday |
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 30%. |
| Monday Night |
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. Chance of precipitation is 30%. |
| Tuesday |
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 91. Chance of precipitation is 40%. |
| Tuesday Night |
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. Chance of precipitation is 40%. |
| Wednesday |
A slight chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 92. Chance of precipitation is 20%. |
| Wednesday Night |
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for St. Louis, MO.





