Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
063 FPUS53 KLSX 190754 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 254 AM CDT Thu Jun 19 2025 ILZ100-101-MOZ061-063-064-191500- 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 254 AM CDT Thu Jun 19 2025 ...EXTREME HEAT WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH TUESDAY EVENING... .REST OF TONIGHT...Partly cloudy. Near steady temperature in the upper 60s. West winds around 5 mph with gusts up to 20 mph. .THURSDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 60s. Southwest winds around 5 mph. .FRIDAY...Sunny. Highs in the lower 90s. South winds 5 to 10 mph with gusts up to 20 mph. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. .SATURDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 105. .SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .SUNDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 105. .SUNDAY 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. A slight chance of showers and thunderstorms in the morning. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 70s. Heat index values up to 100 early in the evening. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. $$ MOZ042-049-050-191500- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 254 AM CDT Thu Jun 19 2025 .REST OF TONIGHT...Partly cloudy. Areas of fog. Near steady temperature in the mid 60s. West winds around 5 mph. .THURSDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows in the mid 60s. South winds around 5 mph. .FRIDAY...Sunny. Highs in the lower 90s. South winds 10 to 15 mph with gusts up to 25 mph. .FRIDAY NIGHT...Clear. Not as cool with lows in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph. .SATURDAY THROUGH SUNDAY...Clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 100. .TUESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. .WEDNESDAY...Sunny with a slight chance of showers and thunderstorms. Highs around 90. Chance of rain 20 percent. $$ MOZ041-047-048-191500- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 254 AM CDT Thu Jun 19 2025 .REST OF TONIGHT...Partly cloudy. Areas of fog. Near steady temperature in the mid 60s. West winds around 5 mph. .THURSDAY...Areas of fog in the morning. Sunny. Highs in the mid 80s. Northwest winds around 5 mph. .THURSDAY NIGHT...Clear. Lows in the mid 60s. South winds around 5 mph. .FRIDAY...Sunny. Highs in the lower 90s. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 101 in the afternoon. .FRIDAY NIGHT...Clear. Lows in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph. .SATURDAY THROUGH SUNDAY NIGHT...Clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the lower 90s. Lows in the lower 70s. Heat index values up to 100. .TUESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. .WEDNESDAY...Sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. $$ ILZ095>097-MOZ018-019-026-027-034>036-191500- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 254 AM CDT Thu Jun 19 2025 .REST OF TONIGHT...Mostly clear. Near steady temperature in the lower 60s. West winds around 5 mph. .THURSDAY...Sunny. Highs in the mid 80s. West winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the mid 60s. Southwest winds 5 to 10 mph. .FRIDAY...Mostly sunny. Highs around 90. South winds 10 to 15 mph with gusts up to 30 mph. .FRIDAY NIGHT...Mostly clear. Not as cool with lows in the mid 70s. South winds 10 to 15 mph with gusts up to 30 mph. .SATURDAY THROUGH SUNDAY...Clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 105. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .WEDNESDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. $$ ILZ069-070-074-191500- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 254 AM CDT Thu Jun 19 2025 .REST OF TONIGHT...Mostly cloudy. Near steady temperature around 70. West winds 5 to 10 mph with gusts up to 25 mph. .THURSDAY...Mostly sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows in the mid 60s. Southwest winds around 5 mph. .FRIDAY...Sunny. Highs in the upper 80s. South winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds around 10 mph. .SATURDAY AND SATURDAY NIGHT...Clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY THROUGH MONDAY NIGHT...Mostly clear. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 105. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. Heat index values up to 100 early in the evening. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. $$ MOZ074-084-085-099-191500- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 254 AM CDT Thu Jun 19 2025 .REST OF TONIGHT...Partly cloudy with a 50 percent chance of showers. Near steady temperature in the upper 60s. Southwest winds around 5 mph. .THURSDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the mid 60s. West winds around 5 mph, becoming south after midnight. .FRIDAY...Sunny. Highs in the lower 90s. South winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph with gusts up to 20 mph. .SATURDAY...Sunny. Highs in the mid 90s. Heat index values up to 105. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Clear. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 100. .MONDAY AND MONDAY NIGHT...Mostly clear. Hot. Highs in the mid 90s. Lows in the lower 70s. Heat index values up to 100. .TUESDAY...Sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. .WEDNESDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. $$ MOZ051-052-060-191500- Montgomery MO-Lincoln MO-Warren MO- 254 AM CDT Thu Jun 19 2025 .REST OF TONIGHT...Partly cloudy. Near steady temperature in the mid 60s. Northwest winds around 5 mph. .THURSDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the mid 60s. Southwest winds around 5 mph. .FRIDAY...Sunny. Highs in the lower 90s. South winds 5 to 10 mph with gusts up to 25 mph. .FRIDAY NIGHT...Mostly clear. Not as cool with lows in the mid 70s. South winds 5 to 10 mph with gusts up to 25 mph. .SATURDAY THROUGH SUNDAY...Clear. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .TUESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .TUESDAY NIGHT...Partly cloudy. Lows in the lower 70s. Heat index values up to 100 early in the evening. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. $$ ILZ058-059-098-191500- Greene IL-Macoupin IL-Calhoun IL- 254 AM CDT Thu Jun 19 2025 .REST OF TONIGHT...Partly cloudy. Near steady temperature in the mid 60s. West winds 5 to 10 mph. .THURSDAY...Sunny. Highs in the lower 80s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the mid 60s. West winds 5 to 10 mph, becoming south after midnight. .FRIDAY...Mostly sunny. Highs in the upper 80s. South winds 10 to 15 mph. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds around 10 mph with gusts up to 20 mph. .SATURDAY THROUGH SUNDAY...Clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 100. .TUESDAY AND TUESDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 20 percent. .WEDNESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. $$ ILZ099-191500- Jersey IL- 254 AM CDT Thu Jun 19 2025 ...EXTREME HEAT WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH TUESDAY EVENING... .REST OF TONIGHT...Partly cloudy. Near steady temperature in the upper 60s. West winds around 5 mph. .THURSDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the mid 60s. West winds around 5 mph, becoming south after midnight. .FRIDAY...Mostly sunny. Highs around 90. South winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds around 10 mph with gusts up to 20 mph. .SATURDAY...Sunny. Highs in the mid 90s. Heat index values up to 100. .SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 100 early in the evening. .SUNDAY...Sunny. Highs in the mid 90s. Heat index values up to 100. .SUNDAY NIGHT AND MONDAY...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 100. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 100 early in the evening. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 70s. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. $$ ILZ060-064-065-191500- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 254 AM CDT Thu Jun 19 2025 .REST OF TONIGHT...Mostly cloudy. Near steady temperature in the upper 60s. West winds 5 to 10 mph with gusts up to 20 mph. .THURSDAY...Mostly sunny. Highs in the lower 80s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows in the mid 60s. West winds 5 to 10 mph, becoming southwest after midnight. .FRIDAY...Mostly sunny. Highs in the mid 80s. South winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows in the lower 70s. South winds around 10 mph with gusts up to 20 mph. .SATURDAY THROUGH SUNDAY...Clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 100. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 100. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 70s. .WEDNESDAY...Mostly sunny with a slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. $$ ILZ079-MOZ075-191500- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 254 AM CDT Thu Jun 19 2025 .REST OF TONIGHT...Partly cloudy with a 20 percent chance of showers. Near steady temperature around 70. Southwest winds around 5 mph. .THURSDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 60s. Southwest winds around 5 mph. .FRIDAY...Sunny. Highs in the lower 90s. South winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. .SATURDAY THROUGH SUNDAY...Clear, hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .WEDNESDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 100. $$ MOZ059-062-072-073-191500- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 254 AM CDT Thu Jun 19 2025 .REST OF TONIGHT...Partly cloudy with a 50 percent chance of showers. Near steady temperature in the upper 60s. West winds around 5 mph. .THURSDAY...Sunny. Highs in the mid 80s. Northwest winds around 5 mph. .THURSDAY NIGHT...Clear. Lows in the mid 60s. Southwest winds around 5 mph. .FRIDAY...Sunny. Highs in the lower 90s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 100 in the afternoon. .FRIDAY NIGHT...Mostly clear. Not as cool with lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. .SATURDAY THROUGH SUNDAY...Clear, hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 100. .TUESDAY NIGHT...Partly cloudy. Lows in the lower 70s. Heat index values up to 100 early in the evening. .WEDNESDAY...Sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. $$ ILZ102-MOZ065-191500- Monroe IL-Jefferson MO- 254 AM CDT Thu Jun 19 2025 ...EXTREME HEAT WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH TUESDAY EVENING... .REST OF TONIGHT...Partly cloudy with a 40 percent chance of showers. Near steady temperature in the upper 60s. West winds around 5 mph. .THURSDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the mid 60s. Southwest winds around 5 mph. .FRIDAY...Sunny. Highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 100 in the afternoon. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph. .SATURDAY THROUGH SUNDAY...Clear, hot. Highs in the upper 90s. Lows in the mid 70s. Heat index values up to 110. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in the mid 70s. Highs in the upper 90s. Heat index values up to 105. .TUESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Hot with highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. $$