The upper level winds have shifted, coming in from the northwest and sending cooler, drier air into Missouri. This pattern will persist through early next week giving us chilly nights and mild days. This is also a dry weather pattern with no rain in the forecast through October 5th.
The 30 year average low and high for the start of October are 50 and 72. Temperatures will stay below these averages through Sunday but warm slightly for the start of next week.