Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
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500 FPUS53 KLSX 191258 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 758 AM CDT Sat Sep 19 2026 ILZ100-101-MOZ061-063-064-192000- Madison IL-Saint Clair IL-Saint Charles MO-Saint Louis MO- Saint Louis City MO- Including the cities of Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis 758 AM CDT Sat Sep 19 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TODAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. .TONIGHT...Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph. .SUNDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 90s. West winds around 5 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Cooler with highs in the upper 70s. Northeast winds 10 to 15 mph. Chance of rain 70 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a slight chance of showers. Lows in the upper 50s. Chance of rain 20 percent. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs in the lower 70s. Lows in the mid 50s. .WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs in the mid 70s. Lows in the mid 50s. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows in the upper 50s. Highs in the upper 70s. $$ MOZ049-192000- Osage MO- 758 AM CDT Sat Sep 19 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TODAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. .TONIGHT...Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph. .SUNDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 90. West winds around 5 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 80 percent. .MONDAY...A slight chance of thunderstorms. Showers likely, mainly in the morning. Cooler with highs in the mid 70s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 50s. .TUESDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs around 70. .TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. .THURSDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 50s. .FRIDAY...Partly sunny. A slight chance of showers in the morning. Highs in the mid 70s. Chance of rain 20 percent. $$ MOZ042-050-192000- Audrain MO-Callaway MO- Including the cities of Mexico and Fulton 758 AM CDT Sat Sep 19 2026 .TODAY...Partly sunny. Highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .TONIGHT...Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Southwest winds around 5 mph. Chance of rain 20 percent. .SUNDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Northwest winds around 5 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 90 percent. .MONDAY...A slight chance of thunderstorms. Showers likely, mainly in the morning. Much cooler with highs around 70. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 50s. .TUESDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 60s. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s. Highs around 70. .THURSDAY AND THURSDAY NIGHT...Mostly cloudy. Highs in the lower 70s. Lows in the mid 50s. .FRIDAY...Partly sunny. A slight chance of showers in the morning. Highs in the mid 70s. Chance of rain 20 percent. $$ MOZ047-048-192000- Moniteau MO-Cole MO- Including the city of Jefferson City 758 AM CDT Sat Sep 19 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TODAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. .TONIGHT...Mostly clear in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 20 percent. .SUNDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 90. West winds around 5 mph. Chance of rain 50 percent. .SUNDAY NIGHT...A chance of thunderstorms. Showers. Lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 90 percent. .MONDAY...A slight chance of thunderstorms. Showers likely, mainly in the morning. Cooler with highs in the mid 70s. Northeast winds 5 to 10 mph. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy. A slight chance of showers in the evening. Lows in the upper 50s. Chance of rain 20 percent. .TUESDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 70s. .TUESDAY NIGHT...Partly cloudy. Lows in the lower 50s. .WEDNESDAY...Sunny. Highs in the mid 70s. .WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper 70s. .THURSDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 50s. .FRIDAY...Partly sunny. A slight chance of showers in the morning. Highs in the upper 70s. Chance of rain 20 percent. $$ MOZ041-192000- Boone MO- Including the city of Columbia 758 AM CDT Sat Sep 19 2026 .TODAY...Partly sunny. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .TONIGHT...Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows around 70. Southwest winds around 5 mph. Chance of rain 40 percent. .SUNDAY...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Not as warm with highs in the mid 80s. Northwest winds around 5 mph. Chance of rain 50 percent. .SUNDAY NIGHT...A chance of thunderstorms. Showers. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 90 percent. .MONDAY...Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers in the afternoon. Cooler with highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy. A slight chance of showers in the evening. Lows in the upper 50s. Chance of rain 20 percent. .TUESDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 60s. .TUESDAY NIGHT...Partly cloudy. Lows in the lower 50s. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s. .THURSDAY...Partly sunny. Highs in the mid 70s. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. A 20 percent chance of showers. Lows in the upper 50s. Highs in the mid 70s. $$ ILZ095>097-MOZ018-019-026-027-034>036-192000- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 758 AM CDT Sat Sep 19 2026 .TODAY...Partly sunny this morning, then becoming mostly cloudy. Highs in the lower 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph, becoming west after midnight. Chance of rain 50 percent. .SUNDAY...Mostly cloudy with a chance of showers and thunderstorms. Cooler with highs around 80. North winds 5 to 10 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent. .MONDAY...Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers in the afternoon. Cooler with highs in the upper 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 20 percent chance of showers. Lows in the mid 50s. Highs in the mid 60s. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s. Highs in the upper 60s. .THURSDAY...Partly sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. .FRIDAY...Partly sunny. Highs in the lower 70s. $$ ILZ069-070-074-192000- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 758 AM CDT Sat Sep 19 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TODAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph. .TONIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 70s. South winds around 5 mph. .SUNDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 90s. West winds around 5 mph. Chance of rain 20 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 50 percent. .MONDAY...Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Cooler with highs around 80. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 50s. Chance of rain 40 percent. .TUESDAY...Partly sunny. A slight chance of showers in the morning. Highs in the lower 70s. Chance of rain 20 percent. .TUESDAY NIGHT THROUGH FRIDAY...Partly cloudy. Lows in the mid 50s. Highs in the mid 70s. $$ MOZ074-084-085-099-192000- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 758 AM CDT Sat Sep 19 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TODAY...Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. .TONIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows around 70. Southwest winds around 5 mph. .SUNDAY...Mostly sunny. Highs in the mid 90s. West winds around 5 mph. .SUNDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 50 percent. .MONDAY...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny with showers likely with a chance of thunderstorms in the afternoon. Cooler with highs in the lower 80s. North winds around 5 mph. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 50s. Chance of rain 20 percent. .TUESDAY...Partly sunny. Cooler with highs in the lower 70s. .TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. Highs in the upper 70s. $$ MOZ060-192000- Warren MO- 758 AM CDT Sat Sep 19 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TODAY...Partly sunny. Hot with highs in the mid 90s. Southwest winds around 5 mph. .TONIGHT...Partly cloudy. Lows around 70. Southwest winds around 5 mph. .SUNDAY...Partly sunny in the morning, then becoming mostly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. West winds around 5 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 80 percent. .MONDAY...A slight chance of thunderstorms. Showers likely, mainly in the morning. Cooler with highs in the mid 70s. Northeast winds around 5 mph. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 50s. .TUESDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 60s. .TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. .THURSDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. .FRIDAY...Partly sunny. A slight chance of showers in the morning. Highs in the mid 70s. Chance of rain 20 percent. $$ MOZ051-052-192000- Montgomery MO-Lincoln MO- 758 AM CDT Sat Sep 19 2026 .TODAY...Partly sunny. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. .TONIGHT...Partly cloudy. Lows around 70. Southwest winds around 5 mph. .SUNDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Northwest winds around 5 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 80 percent. .MONDAY...A slight chance of thunderstorms. Showers likely, mainly in the morning. Cooler with highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 50s. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs in the upper 60s. Lows in the lower 50s. .WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs in the lower 70s. Lows in the lower 50s. .THURSDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. .FRIDAY...Partly sunny. A slight chance of showers in the morning. Highs in the mid 70s. Chance of rain 20 percent. $$ ILZ058-059-098-099-192000- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 758 AM CDT Sat Sep 19 2026 .TODAY...Partly sunny this morning, then becoming mostly cloudy. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. .TONIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. Southwest winds around 5 mph. .SUNDAY...Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Northwest winds 5 to 10 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...A slight chance of thunderstorms. Showers likely, mainly in the morning. Cooler with highs in the mid 70s. Northeast winds 10 to 15 mph. Chance of rain 70 percent. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 20 percent chance of showers. Lows in the mid 50s. Highs in the upper 60s. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s. .WEDNESDAY THROUGH FRIDAY...Partly cloudy. Highs in the mid 70s. Lows in the mid 50s. $$ ILZ060-065-192000- Montgomery IL-Fayette IL- Including the cities of Litchfield and Vandalia 758 AM CDT Sat Sep 19 2026 .TODAY...Mostly sunny. A slight chance of showers this morning. Hot with highs in the mid 90s. Southwest winds around 5 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. Southwest winds around 5 mph. .SUNDAY...Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 90. Northwest winds 5 to 10 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...A slight chance of thunderstorms. Showers likely. Much cooler with highs in the mid 70s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 50s. Highs around 70. Chance of rain 20 percent. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s. .WEDNESDAY THROUGH FRIDAY...Partly cloudy. Highs in the mid 70s. Lows in the mid 50s. $$ ILZ064-192000- Bond IL- 758 AM CDT Sat Sep 19 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TODAY...Sunny this morning, then becoming partly sunny. Hot with highs in the mid 90s. Southwest winds around 5 mph. .TONIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 70s. South winds around 5 mph. .SUNDAY...Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 90s. West winds around 5 mph. Chance of rain 30 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 60 percent. .MONDAY...Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Cooler with highs in the upper 70s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a slight chance of showers. Lows in the upper 50s. Chance of rain 20 percent. .TUESDAY...Partly sunny. A slight chance of showers in the morning. Highs around 70. Chance of rain 20 percent. .TUESDAY NIGHT THROUGH FRIDAY...Partly cloudy. Lows in the mid 50s. Highs in the mid 70s. $$ ILZ079-MOZ075-192000- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 758 AM CDT Sat Sep 19 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TODAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. .TONIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 70s. Southwest winds around 5 mph. .SUNDAY...Mostly sunny. Highs in the mid 90s. West winds around 5 mph. .SUNDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 50 percent. .MONDAY...Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Cooler with highs in the lower 80s. North winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 50s. Chance of rain 20 percent. .TUESDAY...Partly sunny. A slight chance of showers in the morning. Highs in the lower 70s. Chance of rain 20 percent. .TUESDAY NIGHT THROUGH FRIDAY...Partly cloudy. Lows in the mid 50s. Highs in the mid 70s. $$ MOZ059-062-072-073-192000- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 758 AM CDT Sat Sep 19 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TODAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph. .TONIGHT...Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 90s. West winds around 5 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 60s. North winds around 5 mph. Chance of rain 70 percent. .MONDAY...Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Cooler with highs in the upper 70s. North winds around 5 mph. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the upper 50s. Chance of rain 50 percent. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs around 70. Lows in the lower 50s. .WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs in the mid 70s. Lows in the mid 50s. .FRIDAY...Partly sunny. A slight chance of showers in the morning. Highs in the mid 70s. Chance of rain 20 percent. $$ ILZ102-MOZ065-192000- Monroe IL-Jefferson MO- 758 AM CDT Sat Sep 19 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TODAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph. .TONIGHT...Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph. .SUNDAY...Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 90s. West winds around 5 mph. Chance of rain 20 percent. Heat index values up to 100. .SUNDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 70 percent. .MONDAY...Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Cooler with highs around 80. North winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the upper 50s. Chance of rain 30 percent. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs in the lower 70s. Lows in the lower 50s. .WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs in the mid 70s. Lows in the lower 50s. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows in the mid 50s. Highs in the upper 70s. $$