New Brunswickers suffered another sweltering day Wednesday as Environment Canada said the humidex could reach 40.

The province has been under a series of heat alerts this week.

“A warm and humid air mass will persist over the Maritimes today resulting in humidex values reaching and possibly exceeding 40 in the afternoon over most of the province with the exception of some coastal areas, especially along the Fundy coast where onshore southwesterly winds will maintain cooler temperatures,” according to a heat warning issued by Environment Canada at 4:48 a.m.

Fredericton has also issued a heat warning.

During periods of intense heat, Environment Canada suggests people drink plenty of liquids to decrease the chance of dehydration.

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Environment Canada is predicting another hot day on Wednesday with a humidex level reaching 40. (CBC)

While New Brunswickers are enjoying a period of hot weather, Environment Canada is also closely monitoring tropical storm Arthur to determine how it may affect weather in Atlantic Canada on the weekend.

"The tropical storm is expected to intensify to hurricane strength tonight as it moves slowly northeastward not far off the U.S. east coast," according to a statement from the Canadian Hurricane Centre at 8:50 a.m. on Wednesday.

“A trough of low pressure will be moving eastward from the Great Lakes, guiding Arthur toward Atlantic Canada. The nature of the trough approaching from the Great Lakes will make all the difference in Arthur’s intensity, track and structure as it moves toward our region. Scenarios range from a direct effect with wind and rain to a well offshore track with perhaps just rain from the trough, drawing moisture from the tropical system.”