St Louis Weather Predictions 2025 Winter. Now that the leaves are falling, it’s time to look ahead with the weather first winter weather outlook. The storm system is expected to bring a lot of winter weather to an area extending roughly 85 miles in all directions.

The purpose of these experimental probabilistic snowfall products is to provide customers and partners a range of snowfall possibilities, in complement to existing nws deterministic snowfall graphics, to better communicate forecast. January weather forecast for st.