Prévisions météo à 5 jours Niagara Falls 03-09-2026
Prévisions météo Niagara Falls demain 03.09.2026 : pluie éparse possible, température de 21 °C à 27 °C.
Probabilité de précipitations 91%. Vent jusqu'à 3.89 m/s (rafales 9.5 m/s). Humidité de l'air 61–99%, pression atmosphérique 758–761 mm Hg, indice UV jusqu'à 7.
Alertes météo
Masquer les alertesyellow warning - heat - in effect
heat
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.
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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.
Take action to protect yourself and others – extreme heat can affect everyone’s health. Determine if you or others around you are at greater risk of heat illness. Check on older adults, those living alone and other at-risk people in-person or on the phone multiple times a day.
Watch for the early signs of heat exhaustion in yourself and others. Signs may include headache, nausea, dizziness, thirst, dark urine and intense fatigue. Stop your activity and drink water.
Heat stroke is a medical emergency! Call 9-1-1 or your emergency health provider if you, or someone around you, is showing signs of heat stroke which can include red and hot skin, dizziness, nausea, confusion and change in consciousness. While you wait for medical attention, try to cool the person by moving them to a cool place, removing extra clothing, applying cold water or ice packs around the body.
Drink water often and before you feel thirsty to replace fluids.
Close blinds, or shades and open windows if outside is cooler than inside.
Turn on air conditioning, use a fan, or move to a cooler area of your living space. If your living space is hot, move to a cool public space such as a cooling centre, community centre, library or shaded park.
Follow the advice of your region’s public health authority.
Plan and schedule outdoor activities during the coolest parts of the day.
Limit direct exposure to the sun and heat. Wear lightweight, light-coloured, loose-fitting clothing and a wide-brimmed hat.
Never leave people, especially children, or pets inside a parked vehicle. Check the vehicle before locking to make sure no one is left behind.
yellow advisory - fog - in effect
fog
Near-zero visibility in fog is expected.
Visibility along the shore of Lake Ontario is reduced in dense fog. The visibility should improve Wednesday morning as the fog dissipates.
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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.
Be prepared for areas of near-zero visibility and allow extra time to reach your destination.
yellow advisory - fog - in effect
fog
Near-zero visibility in fog is expected over some areas.
Visibility should improve this morning as the fog dissipates.
###
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.
Be prepared for areas of near-zero visibility and allow extra time to reach your destination.
yellow advisory - fog - in effect
fog
Near-zero visibility in fog is expected over some areas.
Visibility should improve this morning as the fog dissipates.
###
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.
Be prepared for areas of near-zero visibility and allow extra time to reach your destination.
Les 5 jours en un coup d'œil — appuyez sur un jour pour l'ouvrir
Lever du soleil 06:42
Coucher du soleil 19:48
Coucher du soleil 19:48
Dernier Quartier50% illuminé
Lever de la lune 22:40 · Coucher de la lune 13:52
Lever de la lune 22:40 · Coucher de la lune 13:52
Graphique
Tableau
| Température | Risque de pluie | Couverture nuageuse | Humidité | Pression | Vent | Indice UV | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Averse de pluie modérée à forte | 21 °C | 91% (4.76 mm/h) | 100% | 97% | 759 mm Hg | SE 143° 3.89 (8.53) m/s | 0 |
| 01:00 |  Averse de pluie légère | 22 °C | 74% (0.84 mm/h) | 100% | 97% | 758 mm Hg | S 190° 3.31 (9.5) m/s | 0 |
| 02:00 |  Pluie légère éparse avec tonnerre | 22 °C | 41% (0.16 mm/h) | 76% | 98% | 758 mm Hg | SO 222° 3 (7.42) m/s | 0 |
| 03:00 |  Brouillard | 22 °C | 43% | 100% | 98% | 758 mm Hg | SO 222° 2.11 (4) m/s | 0 |
| 04:00 | Brouillard | 22 °C | 43% | 100% | 99% | 759 mm Hg | OSO 249° 1.61 (2.42) m/s | 0 |
| 05:00 | Brouillard | 21 °C | 43% | 100% | 99% | 759 mm Hg | ONO 297° 2 (5.22) m/s | 0 |
| 06:00 | Brouillard | 21 °C | 43% | 100% | 99% | 759 mm Hg | O 278° 2 (3.61) m/s | 0 |
| 07:00 |  Brouillard | 21 °C | 43% | 100% | 99% | 760 mm Hg | ONO 295° 2.11 (5) m/s | 0 |
| 08:00 | Brouillard | 21 °C | 42% | 100% | 97% | 760 mm Hg | ONO 285° 1.89 (5.03) m/s | 0.4 |
| 09:00 |  Couvert | 22 °C | 30% | 100% | 91% | 761 mm Hg | ONO 302° 2.31 (4.53) m/s | 1.2 |
| 10:00 |  Ensoleillé | 23 °C | 11% | 17% | 83% | 761 mm Hg | O 277° 1.69 (3.22) m/s | 2.7 |
| 11:00 |  Nuageux | 24 °C | 13% | 69% | 72% | 761 mm Hg | O 263° 2.11 (3.61) m/s | 4.6 |
| 12:00 | Couvert | 26 °C | 16% | 100% | 67% | 761 mm Hg | OSO 251° 2.81 (4.42) m/s | 6.1 |
| 13:00 |  Pluie éparse possible | 27 °C | 17% (0.01 mm/h) | 100% | 64% | 760 mm Hg | OSO 255° 3.19 (4.92) m/s | 7 |
| 14:00 |  Partiellement nuageux | 27 °C | 8% | 56% | 62% | 760 mm Hg | OSO 256° 3 (4.81) m/s | 6.4 |
| 15:00 | Pluie éparse possible | 27 °C | 13% (0.01 mm/h) | 88% | 61% | 760 mm Hg | OSO 251° 3.11 (5.42) m/s | 5.3 |
| 16:00 | Pluie éparse possible | 27 °C | 17% (0.08 mm/h) | 55% | 65% | 759 mm Hg | SO 231° 3.5 (4.81) m/s | 3.7 |
| 17:00 | Pluie éparse possible | 25 °C | 26% (0.11 mm/h) | 84% | 75% | 760 mm Hg | SO 221° 3.81 (5.5) m/s | 1.7 |
| 18:00 | Couvert | 24 °C | 23% | 100% | 79% | 759 mm Hg | SO 220° 3.19 (5.42) m/s | 0.5 |
| 19:00 | Pluie éparse possible | 23 °C | 28% (0.04 mm/h) | 94% | 84% | 758 mm Hg | SO 219° 2.11 (4.61) m/s | 0.1 |
| 20:00 |  Pluie éparse possible | 23 °C | 34% (0.05 mm/h) | 100% | 89% | 759 mm Hg | SO 228° 2.39 (5.72) m/s | 0 |
| 21:00 |  Couvert | 23 °C | 31% | 100% | 92% | 760 mm Hg | OSO 238° 1.81 (5.03) m/s | 0 |
| 22:00 | Averse de pluie légère | 22 °C | 77% (1.05 mm/h) | 100% | 97% | 760 mm Hg | OSO 244° 3.11 (7.5) m/s | 0 |
| 23:00 | Averse de pluie légère | 21 °C | 72% (0.75 mm/h) | 100% | 98% | 759 mm Hg | SO 226° 3 (5.92) m/s | 0 |
Niagara Falls sur la carte
Sources de données et méthodologie
Nos prévisions météo sont alimentées par un fournisseur professionnel de données météorologiques qui agrège les données des services météorologiques nationaux, des observations satellites, des réseaux radar et de plus de 80 000 stations météorologiques dans le monde. Les données de prévision sont mises à jour plusieurs fois par jour. Nous convertissons les données brutes en résumés clairs — vitesse du vent en m/s, pression en mm Hg — afin que vous puissiez planifier votre journée en toute confiance.