The St. Louis region is forecast to have plenty of sun, very little wind and highs around 70 degrees Tuesday. The NWS page’s map was last updated at 2:00:20 p.m. CDT Tuesday. The Area Forecast Discussion is timestamped 12:11 p.m. CDT Tuesday, Oct. 20, 2026.
The NWS forecast offers a snapshot for the St. Louis area, where conditions can vary across the region.
The National Weather Service’s St. Louis office issues regional forecasts.
Sunny Tuesday
Tuesday is expected to bring plenty of sun, very little wind and regional highs around 70 degrees. The latest forecast outlines the outlook.
Seasonably Warm Conditions Continue
Wednesday should be about a degree warmer than Tuesday. The NWS extended forecast continues the outlook.
For outdoor plans, the forecast is unusually cooperative for late October: dry weather, gentle winds and comfortable afternoons.
Outlook Extends Into Next Week
A front may pivot into a west-east orientation before reaching Missouri and central Illinois, keeping the accompanying rain and cold air to the north. The outlook extends through Monday, and a drastic cooldown is not likely if current models are correct. No watches, warnings or advisories are listed for the St. Louis area. The current forecast and NWS St. Louis hazard page show the outlook and alert status.
