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Heat Warning Issued For Most Of The Province

New Brunswick is about to get its first taste of hot and humid weather this summer.

Environment Canada has issued a heat warning for much of the province, including the Kennebecasis Valley, Sussex, St. Stephen, Fredericton and Grand Lake.

Highs will reach 30°C on Thursday but it will feel closer to 35 with the humidity. Friday’s highs will range between 30°C and 34°C with humidex values between 36 and 39.

There will not be much relief at night, either, with lows around 18°C.

It will be a bit cooler in Saint John, where onshore breezes will keep temperatures in the low 20s.

Temperatures and humidity levels will fall on Saturday as a cold front moves across the province.

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Saint John, CA
2:20 pm, Apr 10, 2026
weather icon 9°C
L: 9° H: 9°

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