ST. LOUIS, Mo. – A clear, amber sunrise glows over the Gateway Arch this morning as a brisk west wind stirs the trees. The air feels dry and sharp — a telltale sign of early fall’s push-pull pattern across the Mississippi Valley. But while skies stay bright for now, changes are brewing for the end of the week.
The National Weather Service in St. Louis warns of elevated fire danger today across parts of eastern Missouri and southwest Illinois. Low humidity, gusty winds up to 25 mph, and dry vegetation could allow small fires to spread quickly. Residents are urged to delay outdoor burning and use caution with machinery or discarded smoking materials through late afternoon.
After today’s warm, dry stretch — highs near 65 under full sunshine — conditions will turn calmer Thursday with lighter winds and another mild day near 65°F. By Thursday night, clouds begin to thicken, signaling the next transition.
Rain chances return Friday and linger into the weekend, with the first drops likely Friday afternoon. Showers could become more widespread Friday night into Saturday, offering a welcome cooldown and moisture break for fields and lawns.
Daytime highs will ease into the low 60s by Saturday before recovering slightly Sunday, while lows dip into the upper 40s — perfect for a crisp, cozy weekend. After all, this is the time of year when every breeze carries a hint of the next season’s chill, and for many across the Midwest, that means watching for the first signs of winter weather just ahead.
Five-Day Outlook for St. Louis, MO–IL:
Wed: 65/44 – Sunny; windy; fire danger elevated.
Thu: 65/42 – Sunny; calm winds.
Fri: 62/51 – Clouds increase; rain likely.
Sat: 65/52 – Scattered showers; breezy.
Sun: 66/55 – Mostly cloudy; mild and dry.
