5-day weather forecast Niagara Falls 12-08-2026

Weather forecast Niagara Falls today 12.08.2026: sunny, temperature from 16 °C to 30 °C.

Precipitation probability 70%. Wind up to 4.11 m/s (gusts 5.67 m/s). Air humidity 48–94%, atmospheric pressure 757–759 mm Hg, UV index up to 6.2.

Sunrise 06:18
Sunset 20:23
New Moon0% illuminated
Moonrise 05:37 · Moonset 20:23
Chart
Table
Wed, Aug 12, 2026

Forecast from 16 °C to 30 °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)191818171817161618222430292829273027262522202020
Precipitation (mm/hr)00000000000000000.0100.010.090.710.910.220.33

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 (%)006603423000163914668852808385887270
Rain chance (%)1112131211131414138413549117101855704045

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)1.612.192.191.811.390.6110.890.50.811.311.811.891.892.52.8133.54.111.891.111.112.612.39
Wind gust (m/s)3.334.54.393.562.751.192.061.750.7511.52.082.192.193.033.53.694.645.672.811.922.195.144.89
Wind direction (°)NNE 33°NNE 16°NNE 12°NNE 20°NE 38°ENE 65°SE 128°S 182°WSW 241°W 265°WNW 292°WNW 283°W 264°WSW 244°WSW 248°SW 235°SW 226°SW 217°SW 219°SW 231°NE 46°ENE 77°SSE 150°S 186°

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 (%)848889879489919390776348565661615459546178919292

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)758758758758759758758758759758758758758758758758758757757757757757757757

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 Index00000000.10.51.32.545.76.26.15.2310.40.30000

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)9.29.710.711.312.514.615.116.416.216.215.215.514.616.217.920.522.423.624.123.622.521.923.425.3
PM10 (µg/m³)9.39.810.811.412.714.815.416.716.516.415.515.91516.618.421.122.924.224.724.22322.423.825.7
Ozone (O₃) (µg/m³)42332622212122242936465874911041101121101059686756354
NO₂ (µg/m³)31.533.935.636.236.235.734.833.431.729.727.324.219.814.8118.98.19.213.118.924.328.93335.8
SO₂ (µg/m³)66.16.36.46.56.777.47.98.910.110.69.88.376.15.45.25.76.67.48.18.79
CO (µg/m³)390393399410424432433430420407387350274182128146202253291325336304250219
Wed, Aug 12, 2026

Frequently asked questions about the 5-day weather in Niagara Falls

Over the next 5 days in Niagara Falls the temperature is expected to range from about 14 to 30 °C. See the detailed hourly forecast for each of the 5 days in the charts above.

The chance of rain in Niagara Falls over the next 5 days reaches 75%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.

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.

Over the next 5 days the temperature in Niagara Falls ranges from about 14 to 30 °C. Compare the warmest and coolest day on the temperature chart above.

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.

For a walk or a trip, pick the days with the lowest chance of rain (up to 75%) and light wind — easy to compare on the 5-day charts above.

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.