(CBS SF) — Forecasters are predicting the hottest day of the year in the Bay Area this week with a slight chance of a thunderstorm.

Coastal fog Monday morning will turn into partly sunny skies with muggy conditions. Subtropical moisture will continue to lift into the Bay Area with a change of thunderstorms and showers overnight.

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Temperatures will peak Wednesday in the mid to upper 90s but could go as high as 106 degrees in some inland locations. A sea breeze will keep coastal temperatures in the low to mid 60s.

“What will make this week unique is we began June unseasonably mild, and we will end unseasonably warm,” says KPIX 5 Weather Anchor Roberta Gonzales. “We will have two days in the 100s and then remaining warm inland in the 90s.”

Weather service officials suggest residents working or recreating in hot areas drink plenty of water and seek shelter from the sun whenever possible.

7 Day Weather Forecast (CBS SF)

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People should never leave a pet or child unattended in a vehicle and should provide plenty of water and shade to outdoor animals, according to the weather service.

Forecasters expect somewhat cooler temperatures during the second half of the week and into the weekend.

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