Mesa Countyarea
Jul 9, 2026, 2:44 PMeffective
Jul 10, 2026, 3:30 AMexpires
NWS Grand Junctionsource
Approximate affected area. Zone-based advisories do not include an exact boundary
Full advisory
WHAT
Dangerously hot conditions with prolonged afternoon temperatures in the 100 to 106 range this weekend into early next week. Warm night time temperatures will bring little to no relief overnight.
WHERE
In Colorado, Central Yampa River Basin, Lower Yampa River Basin, Debeque to Silt Corridor, and Grand Valley. In Utah, Arches/Grand Flat and Eastern Uinta Basin.
WHEN
From noon Saturday to midnight MDT Monday Night.
IMPACTS
Heat related illnesses increase significantly during extreme heat events.
ADDITIONAL DETAILS
Near record temperatures are possible especially Sunday into Monday during the peak of this event.