Expires:202607272200;;696156 FPUS53 KLSX 271424 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 923 AM CDT Mon Jul 27 2026 MOZ041-047-048-272200- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 923 AM CDT Mon Jul 27 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING... .REST OF TODAY...Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 110. .TONIGHT...Partly cloudy. Humid with lows in the upper 70s. West winds around 5 mph. Heat index values up to 110 early in the evening. .TUESDAY...Partly sunny. Humid with highs in the mid 90s. North winds 5 to 10 mph. Heat index values up to 104. .TUESDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. East winds around 5 mph. Chance of rain 20 percent. .WEDNESDAY...Mostly sunny. Highs in the lower 90s. East winds around 5 mph. .WEDNESDAY NIGHT...Mostly clear. Lows around 70. .THURSDAY...Mostly sunny. Highs in the lower 90s. .THURSDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 50 percent. .FRIDAY...Becoming partly sunny in the afternoon. A chance of thunderstorms. Showers likely, mainly in the morning. Highs in the mid 80s. Chance of rain 60 percent. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the upper 60s. Chance of rain 50 percent. .SATURDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 20 percent. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows in the upper 60s. Highs in the mid 80s. $$