5-day weather forecast Niagara Sep 27, 2026

22°10° · Overcast

Weather forecast Niagara Sunday Sep 27, 2026: overcast, temperature from 10 °C to 22 °C.

Precipitation probability 21%. Wind up to 1.89 m/s (gusts 6 m/s). Air humidity 22–76%, atmospheric pressure 763–766 mm Hg, UV index up to 4.7.

Sunrise 06:45
Sunset 18:40
Waning Gibbous96% illuminated
Moonrise 18:46 · Moonset 07:53
Chart
Table

Forecast from 10 °C to 22 °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)131212111111101013131618202122222221201717171514
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 (%)10010010010010010010010010010068938197344223584576722644
Rain chance (%)2021212120191817151269792311149957

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)10.610.50.610.5110.8110.51.311.611.691.891.891.811.51.391.111.51.310.890.891
Wind gust (m/s)10.720.610.610.531.0310.811.031.112.142.612.422.332.222.141.921.921.141.531.421.030.926
Wind direction (°)SSW 195°S 174°SW 227°WSW 255°W 264°W 269°W 281°WNW 295°WNW 301°SW 227°SSW 207°SSW 209°SSW 198°S 184°SSW 192°SSW 200°SSW 203°S 179°SW 217°WNW 294°NW 310°NW 326°N 1°N 357°

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 (%)737675757271696761483934292624222231424752545862

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)766766766766766766766766766766766765765764764764763763764764764764764764

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 Index000000000.30.923.44.24.74.23.11.80.70.200000

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)66.87.587.97.47.27.26.86.43.73.43.33.23.23.23.23.23.43.84.14.14.85.7
PM10 (µg/m³)66.87.687.97.47.27.26.86.43.83.43.33.23.23.23.23.23.43.84.14.14.85.7
Ozone (O₃) (µg/m³)8886807266625959626774849610410710610294837470686662
NO₂ (µg/m³)3.53.94.24.54.64.64.64.33.62.821.40.90.60.40.30.61.32.33.34.14.85.46.1
SO₂ (µg/m³)0.70.70.60.60.50.40.40.40.50.60.70.811.11.11.110.90.90.80.80.80.80.8
CO (µg/m³)166168168166166169174175169159151146142139134130131140155171192214227222

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.