Expires:202607272200;;696164
FPUS53 KLSX 271424
ZFPLSX

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


MOZ059-062-072-073-272200-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
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. Heat index values up to 109. 
.TONIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Lows in the upper 70s. Southwest
winds around 5 mph. Chance of rain 20 percent. Heat index values
up to 108 early in the evening. 
.TUESDAY...Mostly sunny. Humid with highs in the lower 90s. North
winds around 5 mph. Heat index values up to 104. 
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers after
midnight. Lows around 70. Northeast winds around 5 mph. Chance of
rain 20 percent. 
.WEDNESDAY...Sunny. Highs in the upper 80s. East winds around
5 mph. 
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. 
.THURSDAY...Mostly sunny. Highs around 90. 
.THURSDAY NIGHT...Partly cloudy in the evening, then mostly
cloudy with a chance of showers and thunderstorms after midnight.
Lows in the upper 60s. Chance of rain 40 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 with a slight chance of thunderstorms. A
chance of showers, mainly in the morning. 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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