Grand Junction, Colo. – Western Colorado faces a quick shift from unsettled skies to extreme heat, with scattered thunderstorms Saturday giving way to triple-digit temperatures by midweek.
According to the National Weather Service in Grand Junction, showers and thunderstorms could develop Saturday afternoon and evening, bringing gusty winds and brief downpours to Mesa County and nearby communities. Rain chances drop sharply overnight, with drier air arriving Sunday.
Highs climb from the lower 90s this weekend into the upper 90s by Monday, peaking near 100°F on Wednesday and Thursday. The prolonged stretch of hot weather raises concerns for heat-related illness, especially in urban areas like Fruita, Palisade, and Clifton, where overnight lows will linger in the upper 60s.
Travelers on I-70 may encounter wet roads during Saturday’s storms, but by early next week, the greater risk will come from heat stress. Officials urge residents to limit outdoor activity during peak afternoon hours, drink plenty of water, and check on vulnerable neighbors.
The heat is expected to persist through late week, with only a slight chance of relief from storms by Friday.
Five Day Forecast for Grand Junction, CO
- Saturday: Chance of thunderstorms, high near 91°F, low 65°F.
- Sunday: Sunny, high near 93°F, low 64°F.
- Monday: Sunny and hotter, high 96°F, low 65°F.
- Tuesday: Hot, high near 99°F, low 67°F.
- Wednesday: Sunny and very hot, high near 100°F, low 68°F.
