The National Weather Service in Portland predicts a shift from a mostly cloudy morning to sunny skies, with highs near 72°F and calming winds, followed by a week with highs in the 80s and a mix of sun and clouds.

Sacramento's weather forecast predicts consistent sunshine with highs in the mid-80s to low 90s and clear skies throughout the week, with light winds and nighttime lows around 58 degrees.

Trade winds in Hawaii strengthen and bring dry conditions, with increased showers expected Monday through mid-week.

The National Weather Service issued an Extreme Heat Warning for Minneapolis with heat indices of 105-110 degrees, advising residents to stay hydrated and indoors. Severe storms with hail and high winds are also possible.

Detroit faces a heatwave with temperatures nearing 100 degrees, high heat indices, and a chance of showers and thunderstorms later in the week. Residents are advised to stay cool and hydrated.

Houston faces a week of potential showers and thunderstorms with chances varying daily, highs near 90 degrees, and high humidity due to a shift in pressure systems.

The NWS in Milwaukee has issued an extreme heat warning, advising residents to take precautions against heat-related illnesses as heat index values may reach 110 degrees.

New Orleans forecast predicts a week of varied weather with high humidity, temperatures around 84°F-91°F, and a mix of sun, showers, and thunderstorms. Winds will remain light.

Sunny weather with temperatures up to 93 degrees is expected in Oklahoma City, with clear skies and occasional gusty winds, according to the National Weather Service.

The National Weather Service has issued an Extreme Heat Warning for St. Louis, MO, with a heat index up to 105 degrees, advising caution and use of local resources due to heat-related illness risks.

Phoenix is facing a severe heatwave with temperatures expected to surpass 100 degrees, prompting warnings for residents to take precautions and stay cool.

The NWS has issued a heat warning for central North Carolina, with temperatures expected to reach the mid 90s to low 100s. Residents are advised to stay cool and hydrated.

Chicago experiences its fourth day of 90+ degrees heat amid a heatwave, with high humidity pushing heat indices over 100 degrees. Potential storms may lead to cooler temperatures later in the week.