Expires:202607271800;;688045
FPUS53 KLSX 271029
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
528 AM CDT Mon Jul 27 2026


ILZ102-MOZ065-271800-
Monroe IL-Jefferson MO-
528 AM CDT Mon Jul 27 2026

...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING...

.TODAY...Sunny, hot with highs around 100. Southwest winds around
5 mph. Heat index values up to 114. 
.TONIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Humid with lows in the upper 70s.
Southwest winds around 5 mph. Chance of rain 20 percent. Heat
index values up to 113 early in the evening. 
.TUESDAY...Mostly sunny. Humid with highs in the lower 90s. North
winds 5 to 10 mph. Heat index values up to 106. 
.TUESDAY NIGHT...Partly cloudy. Lows around 70. Northeast winds
5 to 10 mph. Heat index values up to 101 early in the evening. 
.WEDNESDAY...Sunny. Highs in the upper 80s. Northeast winds
around 5 mph. 
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the mid
60s. Highs in the upper 80s. 
.THURSDAY NIGHT...Partly cloudy in the evening, then mostly
cloudy with a slight chance of showers and thunderstorms after
midnight. Lows in the upper 60s. Chance of rain 20 percent. 
.FRIDAY AND FRIDAY NIGHT...Mostly cloudy. A chance of showers and
thunderstorms. Highs in the mid 80s. Lows in the upper 60s.
Chance of rain 50 percent. 
.SATURDAY...Partly sunny. A chance of showers in the morning,
then a slight chance of showers and thunderstorms in the
afternoon. Highs in the lower 80s. Chance of rain 50 percent. 
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms in the evening, then mostly clear after
midnight. Lows in the mid 60s. Chance of rain 20 percent. 
.SUNDAY...Sunny. Highs in the mid 80s. 

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