Key Points:

• Temperatures will increase to 6 to 8 degrees above-normal mid-to-late week.
• Wednesday & Thursday… Widespread Moderate HeatRisk. Major HeatRisk across southern San Bernardino County, southern Mohave County, and the Colorado River Valley, with pockets of Extreme HeatRisk.
• Extreme Heat Watch in effect for southern San Bernardino County, southern Mohave County, and the Colorado River Valley including Lake Mead National Recreation Area Wednesday & Thursday.
• Will continue to assess the expected degree of heat over the next few days to make the decision to upgrade the watch to a warning or not and/or to expand the warned area.