Denver is waking up under mostly cloudy skies and mid 50s this morning, but the atmosphere is set to flip the switch fast. Temperatures are expected to race toward a high near 84°F, with a window for showers and thunderstorms opening after noon and peaking in the afternoon and early evening. Brief heavy downpours and lightning are both on the table, especially if you have outdoor plans.
Afternoon Thunderstorm Window
Showers and scattered thunderstorms are most likely from shortly after midday through this evening, with forecasters calling for about a 30 percent chance of storms and new rainfall totals generally under a tenth of an inch. According to the National Weather Service, highs should climb into the low to mid 80s before any storms bubble up and knock temperatures back a bit.
Any storm that does get going could pack quick bursts of heavy rain and frequent lightning, so keep those outdoor events loosely planned or easy to move indoors if the sky starts talking.
Where Severe Weather Is Possible
Forecasters say the main severe threat looks marginal and is focused mainly east of the I-25 corridor and across the northeast plains, where any stronger storm could produce hail and gusty winds. The National Weather Service discussion highlights a Level 1, or marginal, risk for isolated strong to severe storms this afternoon.
Along the I-25 corridor, it is a bit of a wait-and-see setup. Storm coverage will depend heavily on how much low-level moisture hangs around and how quickly any early cloud cover breaks, so it is worth checking the radar as the afternoon wears on.
Weekend Outlook
On Saturday, the better storm chances slide a bit north, with the strongest activity expected over far northeastern Colorado while most of the Denver metro sees only isolated showers and a slightly cooler high near 78°F. Sunday looks drier and sunnier with highs back in the low 80s, giving weekend plans a decent window of sun between rounds of afternoon convection. Forecasters expect daily afternoon storm chances to linger into early next week, so it is not a bad idea to keep the umbrella near the door.
What To Do
For commuters, the main concern this afternoon is any storm that pops right over the metro, which can quickly drop heavy rain and sudden gusts that cut visibility and slow traffic. If you are heading to a game, concert, or park, bring a light rain layer and have a backup shelter spot in mind. At the first sight of lightning, move indoors and wait it out.
For the latest watches, warnings, and radar checks before you hit the road or trail, keep an eye on updates from the National Weather Service and your preferred weather app.
