Baltimore climbs to 94 degrees Monday before afternoon storms kick off a volatile midweek stretch. Cooler, less humid weather arrives by Friday.

Honolulu can expect warm temperatures and scattered showers Sunday, while minor coastal flooding remains possible through Tuesday. Stronger winds may arrive late in the week.

Las Vegas is headed for a 112-degree Sunday under an Extreme Heat Warning, with thunderstorms possible after 2 p.m. A hotter-than-normal stretch will ease slightly as monsoon moisture builds midweek.

Sacramento could hit 104 degrees Sunday as a Heat Advisory remains in effect through 10 p.m. A gradual cooldown arrives Monday, but 90s stick around all week.

Sunday brings San Francisco sunshine and upper-70s warmth, while elevated evening tides threaten low-lying bayshore spots through Thursday morning.

A suspected microburst knocked out power to over 3,100 Greeley customers and touched off a grassland fire that closed the busy U.S. 85/34 interchange.

San Diego starts Sunday under coastal clouds before an 81-degree afternoon. Inland heat alerts remain in place as a cooler pattern takes over midweek.

Downtown Los Angeles could reach 88 degrees Sunday before a gradual cooldown brings low-80s temperatures later this week.

San Jose could reach 93 degrees Sunday as a Heat Advisory covers the Santa Clara Valley. A gradual cooldown arrives Monday, with much milder weather by late week.

Portland gets a sunny 82-degree Sunday after five days of 90s. The heat returns later this week, with an 88-degree Friday in the forecast.

Seattle starts Sunday smoky but settles into sunny, seasonable weather before warming back up late in the week.

Phoenix faces a 110-degree Sunday under an Extreme Heat Warning before monsoon storms bring dust, rain and cooler temperatures next week.

D.C. gets a sunny Sunday before temperatures climb Monday and thunderstorms become more likely Tuesday and Wednesday.