Hot Friday and Saturday Give Way to Cooler Sunday in Weekend Forecast

Friday morning starts warm and humid with temperatures in the upper 70s under mostly sunny skies. By afternoon, the heat turns up fast, reaching a high near 99 with a mostly sunny sky, a light southwest wind around 5 to 10 mph and a feels like temperature near 106. Rain chances stay near zero through the day, so umbrellas can stay parked.

Friday evening stays hot for a while after sunset, then gradually eases into a very warm night. Overnight, the temperature slips to around 74 under mainly clear skies with light winds and only a small chance of rain. An Extreme Heat Warning remains in effect through 8 p.m. Saturday for parts of the St. Louis metro area, including nearby southwest Illinois communities. The allergy index is led by very high ragweed, with moderate grass and low mold and tree pollen.

Saturday brings another hot one, with a high near 100 and a low around 72. Expect partly sunny skies, light northwest winds and a slight chance of a stray shower, but most spots should stay dry. The feels like temperature could climb as high as 108 during peak afternoon heat.

Sunday looks better if you are tired of the blast furnace. Mostly sunny skies stick around, but the high drops to about 90 with a low near 64. It will still be warm, though not as intense, with a bit more breeze and lower humidity making the day easier to handle.

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