Expires:202607230100;;419000 FPUS53 KLSX 221733 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 1233 PM CDT Wed Jul 22 2026 MOZ042-049-050-230100- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 1233 PM CDT Wed Jul 22 2026 .THIS AFTERNOON...Mostly sunny. Near steady temperature around 80. North winds 5 to 10 mph with gusts up to 20 mph. .TONIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the lower 80s. East winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. Scattered showers after midnight. Lows in the lower 60s. East winds around 5 mph. Chance of rain 40 percent. .FRIDAY...Showers likely with a slight chance of thunderstorms. Highs in the upper 70s. Southeast winds 5 to 10 mph. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 60s. Chance of rain 50 percent. .SATURDAY...Mostly sunny. Warmer with highs in the upper 80s. Heat index values up to 100 in the afternoon. .SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .TUESDAY...Mostly sunny. Highs in the lower 90s. $$