Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

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Last Map Update: Sun, Jul 26, 2026 at 10:06:28 pm MDT

Watches, Warnings & Advisories

National Weather Service Grand Junction, CO

National Weather Service NWS Flagstaff, AZ

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National Weather Service NWS Tucson Arizona

Heat Advisory

Flood Advisory

Hazardous Weather Outlook

Hazardous Heat Monday & Tuesday

Storms Monday

Tuesday's Storms

Look Before You Lock!

High temperatures will climb into the low 100s in most of the Rio Grande Valley Monday and Tuesday, and into the low-to-mid 100s across much of the area east of the central mountain chain.

There will be a down tick in storm coverage on Monday. However, a few storms will be capable of producing over 1 inch of rain in an hour with a risk of flash flooding, especially below recent burn scars.

There will be an increase in the coverage of showers and thunderstorms, as well as rainfall intensity, on Tuesday.

Never, never, never leave children, disabled or elderly adults, or pets in parked, unattended vehicles! Studies have shown that the temperature inside a parked vehicle can rapidly rise to dangerous levels for people and pets. Leaving the windows slightly open does not significantly decrease the heating rate. The effects can be more severe on children because their bodies have not developed the ability to efficiently regulate internal temperature.