Colorado Summer Weather Alert: Thunderstorm Chances Rise in Denver by Friday Afternoon, July 18

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Denver, Colorado – Scattered thunderstorms could disrupt Friday afternoon plans across Denver as a cold front brings storm chances and gusty winds into the region.

According to the National Weather Service, a 30 percent chance of showers and thunderstorms develops after noon on Friday, July 18, across the Denver metro, with light winds turning breezy by afternoon. Gusts could reach up to 17 mph, and scattered showers may cause delays on I-25, US-36, and local roadways during peak travel hours.

Denver is expected to hit 93°F Friday before storms arrive, and while the rainfall will be brief for some areas, it could create slick roads and sudden visibility drops. The chance of additional rain lingers into Friday night, especially between 5 p.m. and midnight, with isolated storms continuing before clearing.

By Saturday, drier skies return with highs near 91°F, though another round of thunderstorms is possible Saturday night. Sunday looks hotter, with a high near 92°F and another chance of afternoon thunderstorms, especially southeast of the city.

Prepare for rapidly changing weather conditions through the weekend. Keep phones charged and avoid outdoor activities during peak storm hours Friday and Sunday afternoon. Heat and storm risks continue into next week, making it essential to stay alert.


🌤️ Five-Day Forecast | Denver, CO | July 18–23

  • Friday, July 18: High 93°F — 30% chance of PM showers and thunderstorms. Breezy with gusts to 17 mph.
  • Saturday, July 19: High 91°F — Partly sunny; storms likely at night.
  • Sunday, July 20: High 92°F — Mostly sunny with a 30% chance of PM storms.
  • Monday, July 21: High 94°F — Slight chance of PM storms; hot and mostly sunny.
  • Tuesday, July 22: High 97°F — Hot and sunny.
  • Wednesday, July 23: High 94°F — Slight chance of storms with mostly sunny skies.

Storm chances return Saturday night and again Sunday PM — stay weather-aware and hydrated.