Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
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560 FPUS53 KLSX 210104 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 703 PM CST Tue Jan 20 2026 ILZ100-101-MOZ061-063-064-210900- 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 704 PM CST Tue Jan 20 2026 .TONIGHT...Partly cloudy this evening, then becoming mostly cloudy. Not as cool with lows in the upper 20s. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny. Highs in the lower 40s. West winds 10 to 15 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 20s. West winds 5 to 10 mph, becoming northwest after midnight. Gusts up to 25 mph. .THURSDAY...Partly sunny. Highs in the upper 30s. North winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. Cooler with lows around 10 above. North winds around 5 mph, increasing to 10 to 15 mph after midnight. Wind chill values as low as 3 below after midnight. .FRIDAY...Mostly cloudy and much cooler. Near steady temperature 10 to 15. Wind chill values as low as 5 below. .FRIDAY NIGHT...Mostly cloudy. A slight chance of snow after midnight. Cold with lows zero to 5 above zero. Chance of snow 20 percent. Wind chill values as low as 15 below. .SATURDAY...Cloudy with a 50 percent chance of snow. Highs 10 to 15. Wind chill values as low as 15 below in the morning. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Lows around 10 above. Chance of snow 40 percent. Wind chill values as low as 5 below. .SUNDAY...Partly sunny. Highs in the lower 20s. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 5 to 10 above. Highs in the mid 20s. Wind chill values as low as 5 below. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows around 10 above. .TUESDAY...Mostly sunny. Not as cool with highs in the mid 30s. Wind chill values as low as zero in the morning. $$ MOZ042-049-050-210900- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 704 PM CST Tue Jan 20 2026 .TONIGHT...Partly cloudy this evening, then mostly cloudy with a chance of flurries after midnight. Not as cool with lows in the upper 20s. South winds 10 to 15 mph, becoming southwest after midnight. .WEDNESDAY...Sunny. Highs around 40. West winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 20. West winds 5 to 10 mph with gusts up to 30 mph, becoming northwest with gusts up to 20 mph after midnight. .THURSDAY...Partly sunny. Highs in the mid 30s. North winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. Cooler with lows 4 to 10 above. North winds 10 to 15 mph. Wind chill values as low as 8 below after midnight. .FRIDAY...Mostly cloudy and much cooler. Near steady temperature around 10 above. Wind chill values as low as 10 below. .FRIDAY NIGHT...Mostly cloudy. A slight chance of snow in the evening, then a chance of snow after midnight. Cold with lows around zero. Chance of snow 30 percent. Wind chill values as low as 20 below. .SATURDAY...Cloudy with a 50 percent chance of snow. Highs around 10 above. Wind chill values as low as 20 below. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Cold with lows zero to 5 above zero. Chance of snow 40 percent. .SUNDAY THROUGH MONDAY...Partly cloudy. Highs in the lower 20s. Lows zero to 5 above zero. Wind chill values as low as 10 below. .MONDAY NIGHT...Mostly clear. Lows around 10 above. .TUESDAY...Mostly sunny. Not as cool with highs in the mid 30s. Wind chill values as low as zero in the morning. $$ MOZ041-047-048-210900- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 704 PM CST Tue Jan 20 2026 .TONIGHT...Partly cloudy this evening, then mostly cloudy with a chance of flurries after midnight. Not as cool with lows in the upper 20s. South winds 5 to 10 mph with gusts up to 25 mph. .WEDNESDAY...Sunny. Highs in the lower 40s. West winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 20. Northwest winds 5 to 10 mph with gusts up to 25 mph. .THURSDAY...Partly sunny. Highs in the upper 30s. North winds around 5 mph. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cooler with lows around 8 above. North winds around 5 mph, increasing to 10 to 15 mph with gusts up to 25 mph after midnight. Wind chill values as low as 4 below after midnight. .FRIDAY...Mostly cloudy and much cooler. Near steady temperature around 10 above. Wind chill values as low as 10 below in the morning. .FRIDAY NIGHT...Mostly cloudy. A slight chance of snow in the evening, then a chance of snow after midnight. Cold with lows around zero. Chance of snow 30 percent. Wind chill values as low as 15 below. .SATURDAY...Cloudy with a 50 percent chance of snow. Highs around 10 above. Wind chill values as low as 15 below. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Cold with lows zero to 5 above zero. Chance of snow 40 percent. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the lower 20s. Lows zero to 5 above zero. .MONDAY...Mostly sunny. Highs in the mid 20s. .MONDAY NIGHT...Mostly clear. Lows around 10 above. .TUESDAY...Mostly sunny. Not as cool with highs in the upper 30s. Wind chill values as low as 5 above in the morning. $$ ILZ095>097-MOZ018-019-026-027-034>036-210900- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 704 PM CST Tue Jan 20 2026 .TONIGHT...Mostly cloudy. A chance of flurries after midnight. Not as cool. Near steady temperature in the lower 30s. South winds 10 to 15 mph, becoming southwest after midnight. .WEDNESDAY...Sunny. Highs in the upper 30s. West winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows around 19. Northwest winds 10 to 15 mph with gusts up to 30 mph. .THURSDAY...Mostly sunny in the morning, then becoming mostly cloudy. Highs in the lower 30s. Northwest winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. Much colder with lows around 2 above. North winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 13 below after midnight. .FRIDAY...Mostly cloudy. Much cooler with highs 5 to 10 above. Wind chill values as low as 15 below. .FRIDAY NIGHT...Mostly cloudy. A slight chance of snow after midnight. Cold with lows around zero. Chance of snow 20 percent. Wind chill values as low as 20 below. .SATURDAY...Mostly cloudy. A slight chance of snow in the morning, then a chance of snow in the afternoon. Highs around 10 above. Chance of snow 40 percent. Wind chill values as low as 20 below. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Cold with lows zero to 5 above zero. Chance of snow 30 percent. .SUNDAY THROUGH MONDAY...Partly cloudy. Highs in the lower 20s. Lows around zero. Wind chill values as low as 10 below. .MONDAY NIGHT...Mostly clear. Lows around 10 above. .TUESDAY...Mostly sunny. Not as cool with highs in the mid 30s. Wind chill values as low as zero in the morning. $$ ILZ069-070-074-210900- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 704 PM CST Tue Jan 20 2026 .TONIGHT...Partly cloudy this evening, then becoming mostly cloudy. Not as cool with lows in the upper 20s. Temperature rising into the lower 30s after midnight. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Partly sunny in the morning, then clearing. Highs in the lower 40s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 20s. West winds 5 to 10 mph, becoming northwest after midnight. Gusts up to 25 mph. .THURSDAY...Mostly sunny. Highs in the upper 30s. Northwest winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. Cooler with lows around 12. North winds around 5 mph, increasing to 10 to 15 mph after midnight. Wind chill values as low as zero after midnight. .FRIDAY...Mostly cloudy and much cooler. Near steady temperature 10 to 15. Wind chill values as low as 5 below. .FRIDAY NIGHT...Mostly cloudy. A slight chance of snow after midnight. Cold with lows zero to 5 above zero. Chance of snow 20 percent. Wind chill values as low as 15 below. .SATURDAY...Cloudy with a 50 percent chance of snow. Highs 10 to 15. Wind chill values as low as 15 below in the morning. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Lows around 10 above. Chance of snow 40 percent. Wind chill values as low as zero. .SUNDAY...Partly sunny. Highs in the lower 20s. Wind chill values as low as zero in the morning. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows around 10 above. Highs in the mid 20s. .TUESDAY...Sunny. Highs in the lower 30s. Wind chill values as low as zero in the morning. $$ MOZ074-084-085-099-210900- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 704 PM CST Tue Jan 20 2026 .TONIGHT...Mostly clear this evening, then mostly cloudy with a slight chance of rain, freezing rain and snow after midnight. Not as cool with lows in the upper 20s. South winds 5 to 10 mph with gusts up to 25 mph. Chance of precipitation 20 percent. .WEDNESDAY...Partly sunny with a slight chance of freezing rain in the morning, then sunny in the afternoon. Highs in the mid 40s. West winds 5 to 10 mph with gusts up to 20 mph. Chance of precipitation 20 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 20s. West winds around 5 mph, becoming northwest after midnight. Gusts up to 20 mph. .THURSDAY...Mostly sunny. Highs in the lower 40s. North winds around 5 mph. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows around 15. Northeast winds 5 to 10 mph. Gusts up to 25 mph after midnight. Wind chill values as low as 5 above after midnight. .FRIDAY...Mostly cloudy. A slight chance of snow in the afternoon. Much cooler with highs in the lower 20s. Chance of snow 20 percent. Wind chill values as low as 5 above. .FRIDAY NIGHT...Cloudy. A slight chance of snow in the evening, then a chance of snow after midnight. Colder with lows around zero. Chance of snow 40 percent. Wind chill values as low as 15 below. .SATURDAY...Mostly cloudy. A chance of snow in the morning, then snow likely in the afternoon. Light snow accumulation possible. Highs 10 to 15. Chance of snow 70 percent. Wind chill values as low as 15 below in the morning. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Lows 5 to 10 above. Chance of snow 40 percent. Wind chill values as low as 5 below. .SUNDAY...Partly sunny. Not as cool with highs in the mid 20s. .SUNDAY NIGHT...Partly cloudy. Cold with lows around 5 above. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the upper 20s. Lows around 10 above. .TUESDAY...Mostly sunny. Highs in the upper 30s. $$ MOZ051-052-060-210900- Montgomery MO-Lincoln MO-Warren MO- 704 PM CST Tue Jan 20 2026 .TONIGHT...Partly cloudy this evening, then mostly cloudy with a chance of flurries after midnight. Not as cool. Near steady temperature in the lower 30s. South winds 10 to 15 mph, becoming southwest after midnight. .WEDNESDAY...Sunny. Highs around 40. West winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 20s. West winds 5 to 10 mph, becoming northwest after midnight. Gusts up to 30 mph. .THURSDAY...Partly sunny. Highs in the mid 30s. North winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. Cooler with lows around 7 above. North winds around 5 mph, increasing to 10 to 15 mph with gusts up to 25 mph after midnight. Wind chill values as low as 6 below after midnight. .FRIDAY...Mostly cloudy and much cooler. Near steady temperature around 10 above. Wind chill values as low as 10 below. .FRIDAY NIGHT...Mostly cloudy. A slight chance of snow after midnight. Cold with lows around zero. Chance of snow 20 percent. Wind chill values as low as 15 below. .SATURDAY...Cloudy with a 50 percent chance of snow. Highs around 10 above. Wind chill values as low as 15 below. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Cold with lows zero to 5 above zero. Chance of snow 30 percent. .SUNDAY...Partly sunny. Highs around 20. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows zero to 5 above zero. Highs in the mid 20s. Wind chill values as low as 5 below. .MONDAY NIGHT...Mostly clear. Lows around 10 above. .TUESDAY...Mostly sunny. Not as cool with highs in the mid 30s. Wind chill values as low as zero in the morning. $$ ILZ058-059-098-099-210900- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 704 PM CST Tue Jan 20 2026 .TONIGHT...Mostly cloudy. A chance of flurries after midnight. Not as cool. Near steady temperature in the upper 20s. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny. Highs in the upper 30s. West winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 20s. West winds 10 to 15 mph, becoming northwest after midnight. Gusts up to 30 mph. .THURSDAY...Partly sunny in the morning, then becoming mostly cloudy. Highs in the lower 30s. Northwest winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. Much cooler with lows around 5 above. North winds 10 to 15 mph. Wind chill values as low as 9 below after midnight. .FRIDAY...Mostly cloudy and much cooler. Near steady temperature around 10 above. Wind chill values as low as 15 below. .FRIDAY NIGHT...Mostly cloudy. A slight chance of snow after midnight. Cold with lows around zero. Chance of snow 20 percent. Wind chill values as low as 20 below. .SATURDAY...Cloudy. A slight chance of snow in the morning, then a chance of snow in the afternoon. Highs 10 to 15. Chance of snow 40 percent. Wind chill values as low as 20 below. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Cold with lows around 5 above. Chance of snow 40 percent. Wind chill values as low as 5 below after midnight. .SUNDAY...Partly sunny. Highs around 20. Wind chill values as low as 5 below in the morning. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows zero to 5 above zero. Highs in the lower 20s. Wind chill values as low as 10 below. .MONDAY NIGHT...Mostly clear. Lows around 10 above. .TUESDAY...Mostly sunny. Not as cool with highs in the mid 30s. Wind chill values as low as 5 below in the morning. $$ ILZ060-064-065-210900- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 704 PM CST Tue Jan 20 2026 .TONIGHT...Mostly cloudy. Not as cool with lows in the upper 20s. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Partly sunny in the morning, then clearing. Highs around 40. West winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 20s. West winds 10 to 15 mph, becoming northwest after midnight. .THURSDAY...Partly sunny. Highs in the mid 30s. Northwest winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. Much cooler with lows around 7 above. North winds around 5 mph, increasing to 10 to 15 mph with gusts up to 25 mph after midnight. Wind chill values as low as 7 below after midnight. .FRIDAY...Mostly cloudy and much cooler. Near steady temperature around 10 above. Wind chill values as low as 10 below. .FRIDAY NIGHT...Mostly cloudy. A slight chance of snow after midnight. Cold with lows around zero. Chance of snow 20 percent. Wind chill values as low as 15 below. .SATURDAY...Cloudy. A slight chance of snow in the morning, then a chance of snow in the afternoon. Highs 10 to 15. Chance of snow 40 percent. Wind chill values as low as 15 below in the morning. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Lows 5 to 10 above. Chance of snow 40 percent. Wind chill values as low as 5 below. .SUNDAY...Partly sunny. Highs around 20. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 5 to 10 above. Highs in the lower 20s. Wind chill values as low as 5 below. .TUESDAY...Mostly sunny. Highs in the lower 30s. Wind chill values as low as zero in the morning. $$ ILZ079-MOZ075-210900- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 704 PM CST Tue Jan 20 2026 .TONIGHT...Mostly clear this evening, then mostly cloudy with a slight chance of freezing rain after midnight. Not as cool with lows in the upper 20s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent. .WEDNESDAY...Partly sunny in the morning, then clearing. Highs in the mid 40s. Southwest winds 10 to 15 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 20s. West winds 5 to 10 mph, becoming northwest after midnight. .THURSDAY...Mostly sunny. Highs in the upper 30s. North winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. Cooler with lows around 14. Northeast winds around 5 mph, becoming north 10 to 15 mph with gusts up to 25 mph after midnight. Wind chill values as low as 3 above after midnight. .FRIDAY...Mostly cloudy and much cooler. Near steady temperature 15 to 20. Wind chill values as low as zero. .FRIDAY NIGHT...Cloudy. A slight chance of snow in the evening, then a chance of snow after midnight. Colder with lows zero to 5 above zero. Chance of snow 30 percent. Wind chill values as low as 10 below. .SATURDAY...Cloudy with a 50 percent chance of snow. Highs 10 to 15. Wind chill values as low as 15 below in the morning. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Lows around 10 above. Chance of snow 40 percent. Wind chill values as low as 5 below. .SUNDAY...Partly sunny. Highs in the lower 20s. Wind chill values as low as 5 below in the morning. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 5 to 10 above. Highs in the mid 20s. .MONDAY NIGHT...Mostly clear. Lows around 10 above. .TUESDAY...Mostly sunny. Not as cool with highs in the mid 30s. Wind chill values as low as zero in the morning. $$ MOZ059-062-072-073-210900- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 704 PM CST Tue Jan 20 2026 .TONIGHT...Mostly clear this evening, then becoming mostly cloudy. Not as cool with lows in the lower 30s. South winds 5 to 10 mph with gusts up to 25 mph. .WEDNESDAY...Sunny. Highs in the lower 40s. West winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 20s. West winds 5 to 10 mph, becoming northwest after midnight. .THURSDAY...Mostly sunny. Highs in the upper 30s. North winds around 5 mph. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cooler with lows around 12. Northeast winds 5 to 10 mph. Wind chill values as low as 1 above after midnight. .FRIDAY...Mostly cloudy and much cooler. Near steady temperature around 15. Wind chill values as low as zero. .FRIDAY NIGHT...Mostly cloudy. A slight chance of snow in the evening, then a chance of snow after midnight. Colder with lows around zero. Chance of snow 40 percent. Wind chill values as low as 15 below. .SATURDAY...Cloudy with a 50 percent chance of snow. Highs 10 to 15. Wind chill values as low as 15 below in the morning. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Cold with lows around 5 above. Chance of snow 40 percent. .SUNDAY...Partly sunny. Not as cool with highs in the lower 20s. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows around 5 above. Highs in the upper 20s. .MONDAY NIGHT...Mostly clear. Lows around 10 above. .TUESDAY...Mostly sunny. Not as cool with highs in the upper 30s. $$ ILZ102-MOZ065-210900- Monroe IL-Jefferson MO- 704 PM CST Tue Jan 20 2026 .TONIGHT...Partly cloudy this evening, then becoming mostly cloudy. Not as cool with lows in the upper 20s. Temperature rising into the mid 30s after midnight. South winds 5 to 10 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny. Highs in the mid 40s. West winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 20s. West winds 5 to 10 mph, becoming northwest after midnight. .THURSDAY...Mostly sunny. Highs in the upper 30s. North winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. Cooler with lows around 12. North winds 5 to 10 mph. Wind chill values as low as 1 above after midnight. .FRIDAY...Mostly cloudy and much cooler. Near steady temperature around 15. Wind chill values as low as zero. .FRIDAY NIGHT...Mostly cloudy. A slight chance of snow in the evening, then a chance of snow after midnight. Cold with lows zero to 5 above zero. Chance of snow 30 percent. Wind chill values as low as 10 below. .SATURDAY...Cloudy with a 50 percent chance of snow. Highs 10 to 15. Wind chill values as low as 10 below in the morning. .SATURDAY NIGHT...Mostly cloudy. A chance of snow, mainly in the evening. Lows 5 to 10 above. Chance of snow 40 percent. .SUNDAY...Partly sunny. Highs in the lower 20s. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows around 5 above. Highs in the upper 20s. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows around 10 above. .TUESDAY...Mostly sunny. Not as cool with highs in the upper 30s. $$