Grand Junction, Colo. – Western Colorado is baking under triple-digit heat this week, with Grand Junction expected to reach 100°F Tuesday and again Wednesday before storms build later in the week. Residents from the Roan Plateau to the San Juan Mountains could see sudden gusts topping 40 mph by afternoon, making dry conditions more hazardous for fire spread.
According to the National Weather Service in Grand Junction, isolated thunderstorms will develop over higher terrain Tuesday afternoon, with coverage expanding by Thursday. While rainfall may be spotty, strong outflow winds are the main concern. Hot, dry weather combined with gusty conditions will keep fire danger elevated across Mesa, Garfield, Delta, and Montrose counties.
Travelers along I-70 through Glenwood Canyon and U.S. 550 near Ouray should be alert for sudden weather shifts, including brief downpours and blowing dust. Afternoon outdoor activity is discouraged during peak heating hours, and residents are urged to hydrate and avoid leaving children or pets in vehicles.
Storm chances increase into the weekend, bringing slightly cooler conditions by Sunday, but the heat and lightning threat remain the primary hazards through late week. Additional advisories may be issued if thunderstorms strengthen.
Five Day Forecast for Grand Junction, CO
- Tuesday: Sunny and hot, high near 100°F. Light winds.
- Wednesday: Sunny, high near 100°F. Breezy in the afternoon.
- Thursday: Sunny, high near 101°F. 20% chance of storms late.
- Friday: High near 97°F, isolated afternoon thunderstorms possible.
- Saturday: High near 93°F, storms likely by evening.
