Wednesday morning starts at 53 degrees in Alton under clear skies, with a feels like temperature of 54. Northwest winds are light at about 2 mph, gusting to 6 mph. Early commuters have visibility of 12 miles, and sunrise arrives at 7:02 a.m. A light jacket makes sense for the trip out the door, but pick one you can easily put away later.
By afternoon, sunshine will push the high to 88 degrees, with a feels like temperature of 89. West winds will increase to about 8 mph, with gusts reaching 21 mph. The daytime rain chance is zero, so an umbrella can sit this one out. Secure lightweight patio items before heading out, especially if they tend to move around in a breeze.
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The UV index will reach a moderate 4. Afternoon humidity is forecast to drop as low as 34%, while air quality is rated moderate, with ozone the main concern.
Evening brings sunset at 6:34 p.m. and a shift to north winds near 6 mph. If dinner plans include a patio table, keep that morning jacket nearby for the ride home.
Overnight, temperatures will fall to a low of 49 degrees. The rain chance edges up to just 4%, with wind gusts reaching 14 mph.
Allergy levels are moderate for mold and ragweed, the main allergens to watch. Tree and grass pollen levels are low.
Thursday will be mostly sunny, with a high of 82 degrees and a low of 49. The rain chance is 2%.
Get the latest updates on weather conditions here: RiverBender.com/weather.
