Desert cities in Arizona and Nevada will be under excessive heat warnings through the Labor Day weekend due to high temperatures forecast to reach up to 115 degrees in some areas.
The warnings issued by the National Weather Service for Phoenix, Las Veas and other cities take effect Friday and run into Monday evening. Forecasters advise being careful while outdoor and to stay indoors and to drink plenty of water. The weather service said some southern Arizona locations may tie or break their all-time September highs Friday or Saturday. Forecasters said Las Vegas' highs will approach or exceeed records through Monday.