Chicago is experiencing a dangerous heat wave with the OEMC providing resources like cooling centers and safety tips, and ComEd ensuring grid reliability.

Austin's upcoming week will see high temperatures near 100°F, with humid conditions raising the heat index even higher. A slight chance of rain is expected tomorrow, but overall the pattern of hot days and warm nights is set to continue.

Montgomery County extends "Code Red" emergency due to extreme heat, urging precautions for vulnerable populations and providing resources and cooling centers.

Los Angeles weather forecast includes morning fog, sunny afternoons, and cool evenings with temperatures in the mid-70s to low 80s, followed by nighttime lows in the high 50s to low 60s.

Nashville is under a heat advisory until 7 PM CDT Monday with temperatures soaring, possibly reaching a heat index of 106 degrees, and residents are advised to take precautions against heat illnesses.

Forecasters expect stormy weather in Minneapolis with showers and thunderstorms, particularly before noon today, and partly cloudy conditions continuing overnight. The trend includes multiple showers and potential heavy rainfall throughout the week.

Chicago faces a third day of extreme heat but expects a shift to cooler temperatures and rain, according to NBC Chicago and the National Weather Service.

Seattle's weather is pleasant at 76 degrees with mostly sunny skies, light winds, and moderate humidity. Evenings are expected to be partly cloudy with temperatures around 55. The NWS predicts a warmer Tuesday and possible showers later in the week.

Howard County issues a heat alert for June 23 and 24 due to anticipated high temperatures and humidity, with heat index values possibly reaching 110 degrees.

Honolulu's weather will see weakening trade winds and light showers, with some increased rainfall near Kauai. Aviation and marine advisories are in place due to current conditions.

The National Weather Service Las Vegas predicts a hot end to the week in southern Nevada, northwestern Arizona, and southeastern California, with mostly dry conditions and moderate heat risk.

San Diego's inland areas will have cooler temperatures this week, 5 to 10 degrees below average, while coastal temperatures will be 66 to 72 degrees today. A warming trend will return over the weekend. Gusty winds may affect aviators this evening.

San Francisco is under a Coastal Flood Advisory due to high tides, with expected minor flooding and a call for caution. The weather will remain mild with fog, and onshore winds affecting aviation and marine activities.