5-day weather forecast Niagara Sep 16, 2026

21°10° · Overcast

Weather forecast Niagara tomorrow Sep 16, 2026: overcast, temperature from 10 °C to 21 °C.

Precipitation probability 28%. Wind up to 2.89 m/s (gusts 7.33 m/s). Air humidity 37–88%, atmospheric pressure 768–772 mm Hg, UV index up to 5.2.

Sunrise 06:31
Sunset 19:02
First Quarter32% illuminated
Moonrise 13:16 · Moonset 21:25
Chart
Table

Forecast from 10 °C to 21 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)131312121111101010131618192021212120201716141414
Precipitation (mm/hr)000000000000000000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)100100100981200981000598991001005810010010010010010099100
Rain chance (%)192123241111112823531110101041010131619212021

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)221.89221.892.111.891.811.811.691.310.690.390.610.8911.51.692.892.192.111.691.69
Wind gust (m/s)7.335.833.532.723.643.614.924.614.2232.441.891.531.311.531.812.332.421.696.926.56.395.115.33
Wind direction (°)NW 313°NW 314°NW 309°NW 309°NW 324°NW 324°NW 322°NW 320°NNW 328°NNW 337°NNW 344°NNW 345°NW 322°W 264°S 189°S 175°S 176°SSE 149°SE 134°SE 141°SSE 151°S 171°S 174°SSE 157°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)717578808284858878685849434038383741556571757476

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)768769769770770770771772772772772772772771770770770770770770770770770769

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index000000000.41.22.544.95.24.63.32.10.90.200000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)0.80.90.90.90.90.90.9111.11.21.21110.90.90.80.80.80.90.80.80.8
PM10 (µg/m³)0.80.90.90.90.911111.11.21.21.1110.90.90.80.80.80.90.80.80.8
Ozone (O₃) (µg/m³)696968676664626161636569747779797875706767696966
NO₂ (µg/m³)2.32.52.62.62.62.832.92.41.50.90.60.40.30.20.20.40.91.522.32.62.83.1
SO₂ (µg/m³)0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.20.20.20.20.20.20.20.20.2
CO (µg/m³)141142144146148150153154154154152147142137134133135141149158167176183190

Niagara 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.