Saint Louis, MO 63150 Weather Forecast
Saint Louis, Missouri Weather Guide & Climate Overview
Climate Overview
Saint Louis, Missouri (63150) experiences a temperate climate with four distinct seasons and moderate weather extremes. Summers are warm with average highs in the 80s°F, while winters bring average lows in the 20s–30s°F with regular snowfall in many areas. Annual precipitation of 35–50 inches is fairly evenly distributed, with spring and early summer being the wettest periods. Fall foliage season provides spectacular color displays from late September through November. The region experiences a wide variety of weather patterns including nor'easters, severe thunderstorms, and the occasional winter ice storm.
Missouri Weather Challenges
- Tornado risk from spring through early summer
- Ice storms in winter causing widespread outages
- Flooding along the Missouri and Mississippi Rivers
Seasonal Weather Guide
Spring (Mar–May)
Tornado season is in full swing with the most dangerous period from April through mid-June. Severe thunderstorms can produce tornadoes, large hail, and damaging straight-line winds — have a storm shelter plan. Spring flooding is common as snowmelt combines with heavy rain, especially along the Mississippi, Missouri, and Ohio River systems. Temperatures yo-yo from the 40s into the 70s°F with dramatic swings week to week. Wildflowers emerge and farmers begin planting.
Summer (Jun–Aug) (Current)
Hot and humid with temperatures in the 85–100°F range and the corn belt humidity making it feel even hotter. Severe thunderstorms remain a threat with derechos (long-lived damaging wind storms) possible. State fairs, barbecues, and lake recreation are summer staples. The region produces some of the most spectacular lightning displays in the country. Mosquito activity is heavy near standing water. Evening baseball, fireworks, and outdoor concerts thrive.
Fall (Sep–Nov)
A beautiful season as the oppressive humidity breaks and temperatures ease into the 50s–70s°F. Harvest season transforms the landscape with golden cornfields and combines running at full speed. Fall foliage peaks from late September in Minnesota and Wisconsin through late October in Missouri and Kentucky. High school and college football dominate weekends. First frost arrives in September in the north and October further south. November brings the transition to winter with increasing gray skies.
Winter (Dec–Feb)
Brutally cold with average highs in the 20s–30s°F and arctic outbreaks pushing wind chills to -20 to -40°F. Lake-effect snow belts near the Great Lakes can see 60–100+ inches of snow per season. Blizzards can produce whiteout conditions and paralyze travel for days. Ice fishing, snowmobiling, and cross-country skiing are popular winter activities. Keep an emergency kit in your vehicle — getting stranded in winter weather can be dangerous.
Outdoor Activities
Warm and dry conditions are great for road biking, mountain biking, or a casual neighborhood ride. Bring water and sunscreen for longer rides.
Thousands of lakes across Minnesota, Wisconsin, Michigan, and the Great Lakes provide outstanding fishing for walleye, muskie, bass, perch, and panfish. Ice fishing is a beloved winter tradition.
Fall hunting season is deeply rooted in Midwest culture. Whitetail deer, wild turkey, pheasant, duck, and goose hunting draw outdoorsmen from across the country to the prairies and hardwood forests.
The Midwest hosts iconic state fairs and seasonal festivals from county fairs to music festivals. Summer and fall weekends are packed with community events, food, and entertainment.
The Great Lakes and thousands of inland lakes offer powerboating, sailing, jet skiing, and pontoon cruising. Lake Michigan beaches rival ocean shores for beauty.
What Is the Weather Like in Saint Louis, Missouri?
The weather in Saint Louis, Missouri right now is 86°F and clear. Today expect a high of 88°F and a low of 64°F. Winds are calm at 5 mph with moderate humidity at 52%.
What Should I Wear in Saint Louis Today?
Shorts and a t-shirt are ideal. Light, breathable fabrics will keep you comfortable.