The Southland is in the grips of a muggy heat wave this week, which could soon include monsoonal moisture, forecasters said Tuesday.

“It will be warm and muggy through Friday as remnants of tropical storm Mario move into the area. Temperatures will cool through the period but humidities will be much higher than normal,” the National Weather Service said Tuesday night.

“Rain and thunderstorm chances will begin Wednesday night and continue into at least early Friday. Over the weekend into early next week there is (a) slight chance of showers as additional moisture from the south arrives. … The muggy weather will continue into early next week.”

Forecasters said confidence is growing that most areas across will get at least some rain between Wednesday afternoon and Thursday. Amounts are exp

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