5-day weather forecast Niagara Falls 02-09-2026
Weather forecast Niagara Falls today 02.09.2026: mist, temperature from 21 °C to 30 °C.
Precipitation probability 95%. Wind up to 5.31 m/s (gusts 10.42 m/s). Air humidity 69–97%, atmospheric pressure 759–761 mm Hg, UV index up to 5.3.
Weather Alerts
Hide alertsyellow 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.
5 days at a glance — tap a day to open it
Sunrise 06:41
Sunset 19:50
Sunset 19:50
Last Quarter60% illuminated
Moonrise 22:01 · Moonset 12:40
Moonrise 22:01 · Moonset 12:40
Chart
Table
Wed, Sep 2, 2026
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Mist | 22 °C | 20% | 11% | 94% | 761 mm Hg | SSW 198° 2 (3.61) m/s | 0 |
| 01:00 |  Partly cloudy | 21 °C | 24% | 27% | 94% | 761 mm Hg | S 179° 2 (3.22) m/s | 0 |
| 02:00 | Mist | 22 °C | 41% | 100% | 95% | 761 mm Hg | S 183° 1.81 (2.83) m/s | 0 |
| 03:00 | Mist | 22 °C | 27% | 78% | 95% | 761 mm Hg | S 180° 2.19 (4.19) m/s | 0 |
| 04:00 | Mist | 21 °C | 25% | 28% | 95% | 761 mm Hg | S 172° 2.19 (4.72) m/s | 0 |
| 05:00 | Mist | 21 °C | 33% | 100% | 95% | 761 mm Hg | S 182° 2.69 (7) m/s | 0 |
| 06:00 |  Overcast | 21 °C | 32% | 100% | 94% | 761 mm Hg | SSW 205° 2.61 (7.22) m/s | 0 |
| 07:00 |  Overcast | 22 °C | 30% | 93% | 93% | 761 mm Hg | SW 226° 2.31 (6.94) m/s | 0 |
| 08:00 |  Sunny | 23 °C | 16% | 19% | 93% | 761 mm Hg | SSW 201° 2.11 (6.83) m/s | 0.3 |
| 09:00 | Overcast | 24 °C | 30% | 100% | 91% | 761 mm Hg | S 187° 3.61 (8.83) m/s | 0.7 |
| 10:00 | Overcast | 24 °C | 31% | 100% | 92% | 761 mm Hg | SW 216° 3.61 (6.33) m/s | 1.9 |
| 11:00 |  Patchy rain possible | 26 °C | 31% (0.02 mm/hr) | 100% | 88% | 761 mm Hg | SW 233° 4.19 (7) m/s | 3.9 |
| 12:00 | Patchy rain possible | 27 °C | 32% (0.15 mm/hr) | 84% | 82% | 761 mm Hg | SW 230° 5.31 (8.5) m/s | 3.1 |
| 13:00 |  Light drizzle | 28 °C | 42% (0.35 mm/hr) | 100% | 74% | 761 mm Hg | SW 219° 4.39 (9.11) m/s | 5.3 |
| 14:00 | Light drizzle | 29 °C | 44% (0.35 mm/hr) | 99% | 77% | 761 mm Hg | SW 232° 4.89 (7.72) m/s | 3.5 |
| 15:00 | Light drizzle | 30 °C | 40% (0.35 mm/hr) | 100% | 71% | 760 mm Hg | SW 215° 4.81 (7.5) m/s | 4.6 |
| 16:00 | Light drizzle | 30 °C | 38% (0.35 mm/hr) | 98% | 69% | 760 mm Hg | WSW 237° 4.31 (8.19) m/s | 2.3 |
| 17:00 |  Light rain shower | 27 °C | 36% (0.27 mm/hr) | 100% | 73% | 760 mm Hg | WSW 247° 3.11 (5.92) m/s | 1.5 |
| 18:00 |  Thundery outbreaks possible | 26 °C | 28% | 100% | 88% | 759 mm Hg | SSW 206° 2.61 (3.92) m/s | 0.7 |
| 19:00 | Thundery outbreaks possible | 25 °C | 31% | 100% | 91% | 759 mm Hg | S 182° 2.5 (4.81) m/s | 0 |
| 20:00 |  Moderate or heavy rain shower | 24 °C | 91% (5.85 mm/hr) | 100% | 94% | 759 mm Hg | W 271° 2.39 (3.53) m/s | 0 |
| 21:00 |  Torrential rain shower | 21 °C | 95% (9.04 mm/hr) | 100% | 97% | 760 mm Hg | NW 316° 3.31 (8.42) m/s | 0 |
| 22:00 |  Light rain shower | 22 °C | 77% (1.04 mm/hr) | 100% | 96% | 759 mm Hg | SSE 168° 3.69 (10.42) m/s | 0 |
| 23:00 | Moderate or heavy rain shower | 21 °C | 87% (2.85 mm/hr) | 100% | 97% | 759 mm Hg | ESE 112° 3.31 (6.53) m/s | 0 |
Wed, Sep 2, 2026
Frequently asked questions about the 5-day weather in Niagara Falls
What will the weather be like in Niagara Falls over the next 5 days?
Over the next 5 days in Niagara Falls the temperature is expected to range from about 15 to 30 °C. See the detailed hourly forecast for each of the 5 days in the charts above.
On which of the next 5 days will it rain in Niagara Falls?
The chance of rain in Niagara Falls over the next 5 days reaches 95%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.
How accurate is the 5-day weather forecast for Niagara Falls?
A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.
Which of the next 5 days in Niagara Falls will be the warmest and which the coolest?
Over the next 5 days the temperature in Niagara Falls ranges from about 15 to 30 °C. Compare the warmest and coolest day on the temperature chart above.
Will it be windy in Niagara Falls over the next 5 days?
Over the next 5 days the wind in Niagara Falls picks up to 5 m/s. The windiest days are easy to spot on the wind chart above.
Which day of the week in Niagara Falls is best for a walk or a trip?
For a walk or a trip, pick the days with the lowest chance of rain (up to 95%) and light wind — easy to compare on the 5-day charts above.
How can I best use the 5-day forecast for Niagara Falls?
The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.
Niagara Falls on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.