Denver woke up easy on Sunday, June 21, with a cool, mostly clear start near 60°F and a light west-southwest breeze. By midafternoon, though, the sun is expected to crank temperatures into the low 90s, with winds gearing up across the metro area. A slight chance of isolated late-afternoon showers or thunderstorms lingers, mainly across the far eastern plains.
Afternoon Storm Chances and Gusty Winds
According to the National Weather Service, a slight chance of showers and thunderstorms is on the table between 3 p.m. and 4 p.m. Sunday, June 21, with the overall rain probability around 20%. Winds will swing around to the northwest in the afternoon, with gusts that could reach up to 22 mph and kick up brief, gusty outflows. The main severe threat stays over the rural plains, but any storm that does pop could deliver sudden wind bursts and brief, small hail.
Smoke and Fire Weather Concerns
The forecast discussion also flags patchy smoke aloft at times from fires to the west, which could give otherwise sunny skies a hazy, filtered look. People with asthma, COPD, or other lung conditions should think about limiting outdoor time and using indoor air filtration, according to the Colorado Department of Public Health & Environment. Recreation in the high country remains a concern this week, with elevated fire-weather conditions persisting at higher elevations.
Plan for Your Day
Morning errands and outdoor plans should feel comfortable before the heat and wind build, so early birds get the best deal. Before the afternoon breeze shows up, secure patio furniture and any lightweight items that might try to tumble down the block, and carry water if you will be outside. If you have events planned between 3 p.m. and 5 p.m. Sunday, June 21, have a quick backup plan for rain and a spot with shelter in case a gusty shower or outflow moves through. Keep an eye on local forecasts and air-quality alerts through the afternoon, and avoid strenuous work in the high country where fire-weather conditions will stay elevated.
