St. Louis rolled into Tuesday, July 7, 2026, under mostly cloudy skies and thick, muggy air, with morning temperatures in the low 70s and dew points near 72°F, so it already feels sticky. By this afternoon, readings will climb into the upper 80s, and there is a slight chance for showers and an isolated thunderstorm after about 2 p.m., mainly in the late afternoon. Most neighborhoods should stay dry under light northeast winds, but if your outdoor plans stretch past 2 p.m., it is smart to have a quick Plan B ready. Severe storms are not expected today.
Afternoon Rain Chance
The National Weather Service is calling for roughly a 20 percent chance of late day showers and isolated storms Tuesday afternoon, July 7, 2026, with the best odds southeast of the city toward I-44 in Missouri and south of I-70 in Illinois. Highs should top out near 88°F, and northeast winds are expected to stay light, around 2-8 mph. Any showers that do bubble up will likely be brief, and heavy downpours and damaging winds are unlikely this afternoon. For the official forecast and current observations, see NWS St. Louis.
Late-Week Heat And Storms
Things start turning hotter by Thursday, July 9, 2026, as afternoon highs push into the mid 90s and humidity ramps up across the metro. Forecasters highlight a better chance for organized, more widespread thunderstorms Thursday night into Friday (July 9-10, 2026). Where that nighttime complex of storms sets up will go a long way in determining Friday temperatures and impacts. Locally heavy rainfall and overnight storms are on the table with this system, but timing and severity are still uncertain. Check the forecast discussion from the National Weather Service for evolving details.
Plan Ahead
If you will be outdoors late this afternoon, a light rain jacket and a quick glance at radar are your best friends, since brief downpours could pop up across southeast parts of the metro. Looking toward Thursday and Friday (July 9-10, 2026), it may be wise to move sensitive outdoor activities earlier in the day or indoors, because if storms organize overnight they could drop heavy rain and lead to localized ponding. Before you head out, check local forecasts and radar, and keep an eye on updates and any warnings posted by the National Weather Service office in St. Louis as conditions change.
