Active Weather Alerts
Yellow Warning - Heat
Issued: 7:50 AM Jul. 1, 2026 – Environment and Climate Change Canada
Humidex values reaching 40 are expected. Locations: Northern and western New Brunswick. Time span: Today until Friday night. Maximum temperature today: Near 29 degrees Celsius (Humidex: 37). Minimum temperature tonight: 18 to 20 degrees Celsius. Maximum temperature Thursday: 30 to 32 degrees Celsius (Humidex: near 40). Minimum temperature Thursday night: 20 to 22 degrees Celsius. Maximum temperature Friday: 29 to 32 degrees Celsius (Humidex 36 to 40). Remarks: A very warm and increasingly humid air mass will gradually move into the region over the next couple of days. Nighttime lows are also forecast to stay warm, providing little to no relief. The air mass may linger over the region into Saturday, though some uncertainty still exists. Cooler conditions can be expected along parts of the Fundy coast. Most of northern and western New Brunswick will reach heat warning criteria today and then the remainder of the province on Thursday. Forecast guidance shows a generally good consensus regarding the timing of this event, though some uncertainty remains for the areas closest to the Bay of Fundy where heat warning levels may not be reached. Remarks: Humidex values of 40 or higher are expected over all areas of New Brunswick (except coastal Fundy areas) from 2 P.M. to 7 P.M. on Thursday and over southern New Brunswick (except coastal Fundy areas) from 2 P.M. to 7 P.M. on Friday. ### Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion. For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to NBstorm@ec.gc.ca or post reports on X using #NBStorm.
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