Nous sommes le 3 septembre, il est 2h29. Il fait actuellement 28° (ressentie 32°), il y a une brise puissante sur la ville. Selon l'échelle de Beaufort, les feuilles se baladent dans le ciel. La qualité de l'air y est actuellement bonne.
A break in the thunderstorms will continue this morning through midday. Thunderstorms are expected to develop again later this afternoon and continue into this evening. These storms could produce up to 50 knot gusts, large hail and frequent lightning. ### Poor to very poor visibility may contribute to voyage delays and make marine navigation hazardous. Large hail can damage vessels and cause injury. Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
A heat event continues today. What: Maximum temperatures of 30 to 32 degrees Celsius. Minimum temperatures of 20 to 23 degrees Celsius. Maximum humidex values near 40. When: Continuing through today, possibly lasting into Thursday for extreme southwestern Ontario. Additional information: The heat event may continue into Thursday for Windsor and Essex County, however, confidence is low. ### 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 ONstorm@ec.gc.ca or post reports on social media using #ONStorm.
Conditions are favourable for the development of dangerous thunderstorms that may be capable of producing damaging wind gusts, large hail and heavy rain. Hazards: Damaging winds with gusts in excess of 110 km/h possible. Quarter to ping pong ball size hail. Torrential downpours with local rainfall amounts up to 50 millimetres. Risk of a tornado. Timing: This afternoon to this evening. Additional information: Thunderstorms are expected to develop mid to late this afternoon along and ahead of an advancing cold front. There still remains some uncertainty with how strong thunderstorms could become due to some lingering cloud cover across the region which could inhibit how much instability builds in. Latest trends in observational data and models still indicate that sufficient instability should build leading to a robust severe weather threat. The primary concern with any thunderstorms will be for strong and potentially damaging winds along with large hail and torrential rain. That being said, conditions could become favourable for some thunderstorms to be able to produce a tornado. ### Utility outages are possible. Significant damage to property, buildings and trees is possible. There is a risk of serious injury. Large hail can cause significant damage and injury. Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on social media using #ONStorm. For more information: https://www.ontario.ca/page/be-prepared-emergency.
Les conditions à St. Catharines par moment de la journée : matin, après-midi et soir pour aujourd'hui (Jeudi 3 septembre 2026) puis demain (Vendredi 4 septembre 2026), à l'heure locale de St. Catharines.
Les 7 prochains jours à St. Catharines s'annoncent légèrement pluvieux. Dans les jours qui viennent, la moyenne des températures sera de 17° (15° min et 20° max). Le pic de chaleur est attendu aujourd'hui, jusqu'à 27°.
28°· Couvert29°· Couvert
23°· Forte pluie22°· Légère pluie
20°· CouvertMoyennes mensuelles et climat saisonnier à St. Catharines, mois par mois, basés sur les relevés des années précédentes.
En ce moment, la qualité de l'air à St. Catharines est bonne, elle est de 34 (AQI).
Découvrez la phase de la Lune à St. Catharines ce soir et son explication astronomique, ainsi que sa signification astrologique et culturelle.