Hot Tuesday, with storms expected late in the Riverbend

Tuesday morning starts clear across the Riverbend, with a temperature of 68 degrees that feels like 67. A light west-southwest wind is blowing at about 2 mph. Early errands or a walk offer a chance to get outside before the heat builds.

By afternoon, partly sunny skies will help push the high to 92 degrees, with a peak feels like temperature of 94. Southwest winds will increase to about 9 mph, gusting to 16 mph. The daytime rain chance is 17%, so an umbrella likely can stay parked for now. If outdoor work is on your schedule, make room for water and breaks rather than trying to power through the hottest hours.

Evening brings partly cloudy skies and a warm, humid setting. Sunset is at 6:25 p.m., giving anyone finishing yardwork or heading out for a stroll a useful planning point. Winds will ease to about 7 mph.

Overnight, the forecast takes a wetter turn: Late-night showers and a potentially heavy thunderstorm bring a 94% rain chance. Downpours could come with gusty winds, with about seven-tenths of an inch of rain forecast. The low will settle at 69 degrees. Bring in anything you would rather not leave soaking outside.

For allergy sufferers, ragweed is the main concern at a moderate level. Grass, tree pollen and mold are rated low.

Wednesday will be noticeably cooler, with a high of 76 degrees and a low of 67. Expect periods of rain and a thunderstorm, with possible ponding on streets and highways.

Get the latest updates on weather conditions here: RiverBender.com/weather.

More like this:

Sunny Monday in the Riverbend, With a High of 92

Yesterday

Sunny Wednesday in Alton to Reach 88 Degrees

6 days ago

Clear Skies and a Warm Afternoon Ahead in the Riverbend

5 days ago

Warm Weather and Sunshine Ahead for Riverbend This Weekend

4 days ago

Sunny Tuesday Will Bring 80-Degree High to Riverbend

Oct 6, 2026