It's going to be a hot and humid day Monday, as temps climb to near 90 around the Bangor area.

The National Weather Service is forecasting a hot, and very humid conditions Monday and Tuesday. High temperatures are forecast to reach 90 in the Bangor area. Downeast and coastal areas have temps forecast in the mid-80's.

Heat index values are forecast in the 90's for much of central and eastern Maine. According to the NWS, "heat index" is defined as "what the temperature feels like to the human body when relative humidity is combined with the air temperature."

The Maine CDC recommends those without air conditioners to keep windows and blinds closed on the side of your home with the most sun, and open on the shady side. At night, open all windows and run fans to let the cool air in, and hot air out. For more tips to avoid heat related illness, visit

In addition to the hot and humid conditions Monday, pop-up showers and thunderstorms are possible this afternoon and evening. Thunderstorms are expected mainly north of the Katahdin Region.

Tuesday features another round of thunderstorms, some in which could turn strong to locally severe. Some storms could produce damaging winds and heavy downpours.

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