Iowa–Illinois Weather: Trick-or-Treat Evening to Turn Chilly Across the Quad Cities

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DAVENPORT, Iowa–Illinois – Streetlights shimmer off damp pavement early this morning as fog and drizzle give way to a bright, cool calm over the Quad Cities. The air still feels heavy from last night’s rain, but winds are shifting north, ushering in drier, crisper air that will set the tone for the region’s Halloween stretch.

According to the National Weather Service Quad Cities office, showers will clear out early today, replaced by partly to mostly sunny skies and highs in the upper 50s. The late-week pattern turns cooler and more stable — good news for Halloween plans, though trick-or-treaters will notice a distinct chill after sundown Friday. By the time families head home, temperatures could slip into the low 40s with a light north breeze and that familiar fall bite in the air.

Drivers should still expect some slick spots early this morning along I-80 and I-74 before roads dry fully. Through Thursday and Friday, travel looks excellent regionwide, with visibility improving and no major precipitation in sight. Residents are encouraged to finish raking and garden cleanup before Saturday’s cooldown, as temperatures dip back toward the mid-30s at night — the kind that hints at early frost potential if winds calm briefly.

Looking ahead, early November begins mild but may not stay that way for long. Models suggest a colder push by midweek, a reminder that the first true winter chill could arrive sooner than expected.

And don’t forget — clocks “fall back” at 2 a.m. Sunday as daylight fades faster. A chilly November lies ahead.


Five-Day Forecast for Davenport, IA:
Wed: 57/37 – Clouds clearing; breezy north wind early, turning calm late.
Thu: 55/38 – Mostly sunny; light north breeze, crisp air.
Fri: 56/36 – Dry and sunny; chilly for Halloween evening.
Sat: 62/35 – Mostly sunny; cool start, pleasant afternoon.
Sun: 60/43 – Mild and bright; clocks fall back early Sunday.