5-day weather forecast Niagara Falls Sep 18, 2026
22°Weather forecast Niagara Falls today Sep 18, 2026: sunny, temperature from 15 °C to 22 °C.
Precipitation probability 11%. Wind up to 4.19 m/s (gusts 7.89 m/s). Air humidity 39–78%, atmospheric pressure 767–768 mm Hg, UV index up to 5.9.
5 days at a glance — tap a day to open it
Sunrise 06:59
Sunset 19:21
Sunset 19:21
First Quarter53% illuminated
Moonrise 15:24 · Moonset 23:43
Moonrise 15:24 · Moonset 23:43
Chart
TableFri, Sep 18, 2026
Forecast from 15 °C to 22 °C and precipitation
Cloud cover and precipitation probability
Wind speed and direction
Air humidity
Atmospheric pressure
Ultraviolet index
Air quality & pollen
Fri, Sep 18, 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 10 to 22 °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 82%. 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 10 to 22 °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 6 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 82%) 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.
Will I need an umbrella or sunscreen in Niagara Falls this week?
Rain reaches a 82% chance across the next 5 days, so pack something waterproof for the wettest of them — the daily strip above shows which. Today’s UV index peaks at 5.9; sunscreen is worth it from about 3 upwards.
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.