FPUS53 KLSX 182044 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 243 PM CST Wed Feb 18 2026 ILZ100-101-MOZ061-063-064-190400- 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 243 PM CST Wed Feb 18 2026 .TONIGHT...Partly cloudy. Lows in the upper 40s. South winds around 5 mph. .THURSDAY...Partly sunny with a chance of rain. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs around 70. South winds 10 to 15 mph, becoming southwest 15 to 20 mph in the afternoon. Chance of rain 50 percent. .THURSDAY NIGHT...Mostly clear. Cooler with lows in the upper 30s. West winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY...Sunny. Much cooler with highs around 50. West winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY NIGHT...Partly cloudy. Lows around 30. Northwest winds around 5 mph. .SATURDAY...Mostly sunny with a slight chance of rain and snow. Highs in the mid 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the lower 20s. Highs in the upper 30s. .TUESDAY...Mostly sunny. Not as cool with highs around 50. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the upper 30s. .WEDNESDAY...Partly sunny with a 20 percent chance of rain. Highs in the upper 50s. $$ MOZ042-049-050-190400- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 243 PM CST Wed Feb 18 2026 .TONIGHT...Partly cloudy. Cooler with lows in the mid 40s. South winds around 5 mph. .THURSDAY...Partly sunny with a slight chance of rain in the morning, then sunny in the afternoon. Highs in the upper 60s. South winds 10 to 15 mph, becoming southwest 15 to 20 mph in the afternoon. Gusts up to 35 mph. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Cooler with lows in the lower 30s. West winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY...Mostly sunny. Much cooler with highs in the upper 40s. West winds 10 to 15 mph with gusts up to 30 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northwest winds around 5 mph. .SATURDAY...Mostly sunny with a slight chance of rain and snow. Highs in the lower 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows in the lower 20s. .SUNDAY AND SUNDAY NIGHT...Clear. Highs in the upper 30s. Lows 15 to 20. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the upper 30s. Lows in the lower 20s. .TUESDAY...Mostly sunny. Not as cool with highs in the lower 50s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the upper 30s. .WEDNESDAY...Partly sunny with a 20 percent chance of rain. Highs in the upper 50s. $$ MOZ041-047-048-190400- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 243 PM CST Wed Feb 18 2026 .TONIGHT...Partly cloudy. Cooler with lows in the mid 40s. South winds around 5 mph. Gusts up to 20 mph after midnight. .THURSDAY...Partly sunny with a slight chance of rain in the morning, then sunny in the afternoon. Highs around 70. South winds 10 to 15 mph, becoming southwest 15 to 20 mph in the afternoon. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Cooler with lows in the lower 30s. West winds 10 to 15 mph with gusts up to 30 mph. .FRIDAY...Mostly sunny. Much cooler with highs in the upper 40s. West winds 5 to 10 mph with gusts up to 25 mph. .FRIDAY NIGHT...Mostly cloudy. Lows in the upper 20s. North winds around 5 mph. .SATURDAY...Mostly sunny with a slight chance of rain and snow. Highs in the lower 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows in the lower 20s. .SUNDAY AND SUNDAY NIGHT...Clear. Highs around 40. Lows 15 to 20. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the upper 30s. Lows in the lower 20s. .TUESDAY...Mostly sunny. Not as cool with highs in the mid 50s. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Not as cool with lows in the upper 30s. .WEDNESDAY...Partly sunny with a 20 percent chance of rain. Highs in the upper 50s. $$ ILZ095>097-MOZ018-019-026-027-034>036-190400- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 243 PM CST Wed Feb 18 2026 .TONIGHT...Partly cloudy. Cooler with lows in the lower 40s. South winds around 5 mph, becoming southeast after midnight. .THURSDAY...Mostly sunny. A chance of rain in the morning, then a slight chance of rain and thunderstorms in the afternoon. Highs in the upper 60s. Southeast winds 10 to 15 mph, becoming southwest 15 to 20 mph in the afternoon. Chance of rain 40 percent. .THURSDAY NIGHT...Mostly clear in the evening, then becoming mostly cloudy. Cooler with lows in the lower 30s. West winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY...Mostly sunny. Much cooler with highs in the mid 40s. West winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s. Northwest winds around 5 mph. .SATURDAY...Sunny with a slight chance of snow. A slight chance of rain in the afternoon. Highs around 40. Chance of precipitation 20 percent. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows around 20. Highs in the mid 30s. Wind chill values as low as 5 above. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the lower 20s. Highs in the lower 50s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the mid 30s. .WEDNESDAY...Mostly sunny with a 20 percent chance of rain. Highs in the mid 50s. $$ ILZ069-070-074-190400- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 243 PM CST Wed Feb 18 2026 .TONIGHT...Partly cloudy this evening, then becoming mostly cloudy. Lows in the lower 50s. South winds around 5 mph. .THURSDAY...Mostly cloudy with a chance of rain and thunderstorms in the morning, then partly sunny with rain and thunderstorms likely in the afternoon. Highs in the upper 60s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. Cooler with lows in the upper 30s. Southwest winds 15 to 20 mph. .FRIDAY...Sunny. Much cooler with highs around 50. West winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 30s. Northwest winds around 5 mph. .SATURDAY...Mostly sunny. A slight chance of rain and snow in the afternoon. Highs in the mid 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows in the mid 20s. .SUNDAY...Mostly sunny. Highs in the upper 30s. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows around 20. Highs in the upper 30s. .TUESDAY...Mostly sunny. Highs in the mid 40s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the mid 30s. .WEDNESDAY...Partly sunny with a 20 percent chance of rain. Highs in the mid 50s. $$ MOZ074-084-085-099-190400- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 243 PM CST Wed Feb 18 2026 .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Lows in the lower 50s. South winds around 5 mph. .THURSDAY...Mostly cloudy in the morning, then becoming mostly sunny. A slight chance of rain and thunderstorms. Highs in the lower 70s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly clear. Much cooler with lows in the mid 30s. West winds 5 to 10 mph with gusts up to 25 mph. .FRIDAY...Sunny. Much cooler with highs in the mid 50s. Northwest winds 5 to 10 mph with gusts up to 25 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 30s. North winds around 5 mph. .SATURDAY...Mostly sunny with a slight chance of rain and snow. Highs in the upper 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows in the lower 20s. .SUNDAY THROUGH MONDAY...Clear. Highs in the lower 40s. Lows around 20. .MONDAY NIGHT...Mostly clear. Lows around 20. .TUESDAY...Mostly sunny. Highs in the upper 40s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the mid 30s. .WEDNESDAY...Partly sunny with a 20 percent chance of rain. Highs in the upper 50s. $$ MOZ051-052-060-190400- Montgomery MO-Lincoln MO-Warren MO- 243 PM CST Wed Feb 18 2026 .TONIGHT...Partly cloudy. Lows in the mid 40s. South winds around 5 mph. .THURSDAY...Mostly sunny. A chance of rain in the morning. Highs around 70. South winds 10 to 15 mph, becoming southwest 15 to 20 mph in the afternoon. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Cooler with lows in the lower 30s. West winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY...Sunny. Much cooler with highs in the upper 40s. West winds 10 to 15 mph with gusts up to 30 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northwest winds around 5 mph. .SATURDAY...Mostly sunny with a slight chance of snow. A slight chance of rain in the afternoon. Highs in the lower 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows in the lower 20s. Highs in the upper 30s. .SUNDAY NIGHT...Clear. Lows 15 to 20. .MONDAY...Sunny. Highs in the upper 30s. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 20. Highs in the lower 50s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the upper 30s. .WEDNESDAY...Partly sunny with a 20 percent chance of rain. Highs in the mid 50s. $$ ILZ058-059-098-099-190400- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 243 PM CST Wed Feb 18 2026 .TONIGHT...Partly cloudy this evening, then becoming mostly cloudy. Lows in the upper 40s. South winds around 5 mph. .THURSDAY...Partly sunny with a chance of rain. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 60s. Southeast winds 10 to 15 mph, becoming southwest 15 to 20 mph in the afternoon. Chance of rain 50 percent. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Cooler with lows in the mid 30s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY...Mostly sunny. Much cooler with highs in the upper 40s. West winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northwest winds 5 to 10 mph. .SATURDAY...Mostly sunny. A slight chance of rain and snow in the afternoon. Highs in the lower 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows in the lower 20s. .SUNDAY...Mostly sunny. Highs in the mid 30s. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows around 20. Highs in the mid 30s. Wind chill values as low as 5 above. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 20. Highs in the upper 40s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the mid 30s. .WEDNESDAY...Partly sunny with a 20 percent chance of rain. Highs in the mid 50s. $$ ILZ060-064-065-190400- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 243 PM CST Wed Feb 18 2026 .TONIGHT...Partly cloudy this evening, then becoming mostly cloudy. Lows in the upper 40s. South winds around 5 mph. .THURSDAY...Mostly cloudy with a chance of rain and thunderstorms in the morning, then partly sunny with rain and thunderstorms likely in the afternoon. Highs in the mid 60s. South winds 15 to 20 mph. Chance of rain 70 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. Cooler with lows in the upper 30s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY...Sunny. Much cooler with highs in the upper 40s. West winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northwest winds around 5 mph. .SATURDAY...Mostly sunny. A slight chance of rain and snow in the afternoon. Highs in the lower 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows in the lower 20s. .SUNDAY...Mostly sunny. Highs in the mid 30s. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows around 20. Highs in the mid 30s. .TUESDAY...Mostly sunny. Not as cool with highs in the mid 40s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the mid 30s. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly sunny. A 20 percent chance of rain. Highs in the lower 50s. $$ ILZ079-MOZ075-190400- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 243 PM CST Wed Feb 18 2026 .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Lows in the lower 50s. South winds around 5 mph. .THURSDAY...Partly sunny with a chance of rain. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs around 70. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming clear. Much cooler with lows in the upper 30s. West winds 10 to 15 mph with gusts up to 25 mph. .FRIDAY...Sunny. Much cooler with highs in the mid 50s. West winds 10 to 15 mph with gusts up to 25 mph. .FRIDAY NIGHT...Mostly cloudy. Lows in the lower 30s. North winds around 5 mph. .SATURDAY...Mostly sunny with a slight chance of rain and snow. Highs in the mid 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows in the mid 20s. Highs in the lower 40s. .SUNDAY NIGHT...Clear. Lows around 20. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the upper 30s. Lows in the lower 20s. .TUESDAY...Mostly sunny. Not as cool with highs in the upper 40s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the upper 30s. .WEDNESDAY...Partly sunny with a 20 percent chance of rain. Highs in the upper 50s. $$ MOZ059-062-072-073-190400- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 243 PM CST Wed Feb 18 2026 .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Lows in the upper 40s. South winds around 5 mph. .THURSDAY...Mostly sunny. A slight chance of rain and thunderstorms in the morning. Highs in the lower 70s. South winds 10 to 15 mph, becoming southwest 15 to 20 mph in the afternoon. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly clear. Cooler with lows in the mid 30s. West winds 10 to 15 mph with gusts up to 30 mph. .FRIDAY...Sunny. Much cooler with highs in the lower 50s. West winds 10 to 15 mph with gusts up to 25 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows around 30. North winds around 5 mph. .SATURDAY...Mostly sunny with a slight chance of rain and snow. Highs in the mid 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows in the lower 20s. .SUNDAY AND SUNDAY NIGHT...Clear. Highs in the lower 40s. Lows around 20. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs around 40. Lows in the lower 20s. .TUESDAY...Mostly sunny. Not as cool with highs in the lower 50s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the upper 30s. .WEDNESDAY...Partly sunny with a 20 percent chance of rain. Highs in the upper 50s. $$ ILZ102-MOZ065-190400- Monroe IL-Jefferson MO- 243 PM CST Wed Feb 18 2026 .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Lows around 50. South winds around 5 mph. .THURSDAY...Partly sunny with a chance of rain. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 70s. South winds 10 to 15 mph, becoming southwest in the afternoon. Gusts up to 30 mph. Chance of rain 40 percent. .THURSDAY NIGHT...Mostly clear. Cooler with lows in the upper 30s. West winds 10 to 15 mph with gusts up to 30 mph. .FRIDAY...Sunny. Much cooler with highs in the lower 50s. West winds 10 to 15 mph with gusts up to 25 mph. .FRIDAY NIGHT...Partly cloudy. Lows around 30. Northwest winds around 5 mph. .SATURDAY...Mostly sunny with a slight chance of rain and snow. Highs in the mid 40s. Chance of precipitation 20 percent. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows in the mid 20s. Highs in the lower 40s. .SUNDAY NIGHT...Clear. Lows around 20. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the upper 30s. Lows in the lower 20s. .TUESDAY...Mostly sunny. Not as cool with highs in the lower 50s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows in the upper 30s. .WEDNESDAY...Partly sunny with a 20 percent chance of rain. Highs in the upper 50s. $$