Weather Forecast for Fraser Valley

Conditions are no longer expected to reach heat warning criteria. ###

This is a heat warning. Temperatures are high and there is a risk to public health. What: A period of elevated temperatures continues. When: Tonight. Where: Metro Vancouver. Fraser Valley. Additional Information: A ridge of high pressure is bringing elevated temperatures to the region. Daytime highs are expected to be in the low to mid 30s with overnight lows in the mid to high teens. Temperatures over western areas of Metro Vancouver near the water, will be in the high 20s. A gradual cooling trend will begin Thursday. ### Heat affects everyone, but the risks are greater for: seniors, people who live alone, people with pre-existing health conditions such as diabetes, heart disease or respiratory disease, people with mental illness such as schizophrenia, depression, or anxiety, people with substance use disorders, people with limited mobility. Check on family, friends and neighbours, who are at higher risk, particularly if they live alone, to make sure they have a cool space. Watch for the effects of heat illness: heavy sweating, rash, cramps, fainting, high body temperature and the worsening of some health conditions. 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 To get more information: - Check the local news for health and safety updates. - Check HealthLinkBC online resources about heat-related illness and how to protect yourself at https://www.healthlinkbc.ca/healthlinkbc-files/heat-related-illness. - Call HealthLinkBC at 8-1-1 to ask about heat-related illness. Environment Canada and local Medical Health Officers expect an increase in health and safety risks from heat and are advising the public to take precautions. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on social media using #BCStorm.

Never leave susceptible people, particularly children, or pets inside a parked vehicle. If you are in an overheated area, seek a cool place such as a tree-shaded area, splash pad, misting station, or air-conditioned spot like a public building.

Smoke is causing or expected to cause poor air quality and reduced visibility. (July, 22, 2026) Metro Vancouver Regional District has issued a yellow air quality warning due to elevated ground-level ozone (smog) and fine particulate matter (PM2.5). Conditions are expected to improve by the weekend with a change in the weather. Cause: Ground-level ozone (smog) is expected to reach elevated levels in eastern parts of Metro Vancouver and the Fraser Valley this afternoon due to a combination of hot and sunny weather, local emissions, and wildfire smoke. Smoke from wildfires in British Columbia, including the Brunswick Complex wildfire near Boston Bar and the wildfires in the southern Interior, has increased concentrations of fine particulate matter (PM2.5) in all parts of Metro Vancouver and the Fraser Valley. Smoke levels can change quickly with weather and fire behaviour. Yellow Air Quality Warning in Effect (High Health Risk) Limit outdoor activity. Reduce activity duration and intensity. Where: Metro Vancouver Northwest – Vancouver, Burnaby, New Westminster, North Shore (fine particulate matter) Southwest – Richmond, Delta, Tsawwassen (fine particulate matter) Northeast – Tri-Cities, Pitt Meadows, Maple Ridge (fine particulate matter and ground-level ozone) Southeast – Surrey, Langley, White Rock (fine particulate matter and ground-level ozone) Fraser Valley Central – Abbotsford, Mission (fine particulate matter and ground-level ozone) Eastern – Chilliwack, Agassiz, Hope (fine particulate matter and ground-level ozone) What you can do: Check in on others who may be more affected. People at higher risk include those with lung, heart or other chronic conditions, pregnant people, infants, children, older adults, and outdoor workers. Improve indoor air quality. Use portable HEPA air cleaners or do-it-yourself box fan air cleaners. If your home has a built-in ventilation system, install filters rated MERV 13 or higher to remove smoke. If possible, adjust the ventilation system to reduce air pollution coming indoors. Keep windows and doors closed while running air filtration. If it’s hot, focus on staying cool. Spend time in places with air conditioning if your home is smoky or too hot. Try community centres, libraries, or malls. Seek medical help if you experience severe symptoms such as wheezing, chest pain, trouble breathing or severe cough. Call 911 in emergencies. Manage chronic conditions and carry rescue medications with you (e.g. inhalers). If you must be outside, a well-fitted N95, KN95, or KF94 mask offers the most protection. Medical masks offer some protection and single layer coverings (e.g. bandanas, scarfs, shirts) offer none. Check the Air Quality Health Index (AQHI) often throughout the day because conditions can change quickly. See airmap.ca or gov.bc.ca/airqualitymap. Sign up for air quality alerts at metrovancouver.org/aqalerts. ### Visit https://www.airhealth.ca for information on how to reduce your health risk and your personal contribution to pollution levels, as well as for current and forecast AQHI values. Please continue to monitor alerts and forecasts issued by Environment Canada.