Historical weather data, all-time temperature records, and monthly climate averages for Eureka, MO. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Eureka sits right in the swing of spring — expect a high around 64° and a low near 38°, though the date has seen everything from 84° in 2010 to a brutal 23° in 2002. There's roughly a 3-in-10 shot at rain, so keep a jacket handy.
Eureka plays it extreme: the thermometer has swung from a scorching 109° in June 2012 to a bone-chilling -22° in December 1989 — a 131-degree spread that tells you this is no mild-mannered Midwest town. A single September storm in 2008 dropped 4.47 inches of rain, and March 1989 buried the area under 8.3 inches of snow.
Summer is the main event here, with highs hovering around 89-90° in mid-July, while early January keeps things cool with average highs of just 40°. Late April is the wettest stretch of the year, averaging over an inch of precipitation in a single week — something to factor in if you're planning a spring visit.