5-day weather forecast Niagara Falls 21-03-2026
Weather forecast Niagara Falls today 21.03.2026: overcast, temperature from 1 °C to 4 °C.
Precipitation probability 74%. Wind up to 3.89 m/s (gusts 5.89 m/s). Air humidity 74–100%, atmospheric pressure 755–764 mm Hg, UV index up to 4.
Sunset 19:28
| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Fog | 3 °C | 0% | 100% | 98% | 759 mm Hg | NNE 18° 2.61 (3.75) m/s | 0 |
| 01:00 | Fog | 2 °C | 0% | 100% | 99% | 759 mm Hg | N 353° 2.69 (3.97) m/s | 0 |
| 02:00 | Fog | 2 °C | 0% | 100% | 100% | 760 mm Hg | NNW 348° 1.5 (2.17) m/s | 0 |
| 03:00 | Fog | 2 °C | 74% (0.02 mm/hr) | 100% | 100% | 761 mm Hg | NNW 333° 2 (3.03) m/s | 0 |
| 04:00 |  Patchy rain possible | 2 °C | 79% (0.04 mm/hr) | 100% | 94% | 761 mm Hg | NNW 331° 1.81 (2.64) m/s | 0 |
| 05:00 | Patchy rain possible | 2 °C | 68% (0.01 mm/hr) | 100% | 94% | 761 mm Hg | NNW 329° 2.39 (3.56) m/s | 0 |
| 06:00 |  Overcast | 1 °C | 0% | 100% | 88% | 761 mm Hg | NNW 338° 3.11 (4.61) m/s | 0 |
| 07:00 | Fog | 1 °C | 0% | 100% | 97% | 762 mm Hg | NNW 333° 2.39 (3.56) m/s | 0 |
| 08:00 |  Mist | 1 °C | 0% | 83% | 97% | 763 mm Hg | NW 326° 2.11 (3.08) m/s | 0.1 |
| 09:00 |  Cloudy | 1 °C | 0% | 73% | 91% | 763 mm Hg | NNW 334° 2.31 (3.25) m/s | 0.4 |
| 10:00 | Cloudy | 1 °C | 0% | 86% | 88% | 764 mm Hg | NNW 341° 1.61 (2.19) m/s | 1 |
| 11:00 |  Partly cloudy | 3 °C | 0% | 48% | 88% | 763 mm Hg | NW 326° 0.69 (0.89) m/s | 2.1 |
| 12:00 | Cloudy | 3 °C | 0% | 69% | 77% | 763 mm Hg | SW 221° 1.19 (1.39) m/s | 3.5 |
| 13:00 | Partly cloudy | 4 °C | 0% | 55% | 80% | 763 mm Hg | W 271° 1.5 (1.72) m/s | 4 |
| 14:00 | Cloudy | 4 °C | 0% | 77% | 74% | 762 mm Hg | WSW 257° 1.11 (1.28) m/s | 3.9 |
| 15:00 | Cloudy | 4 °C | 0% | 86% | 75% | 761 mm Hg | W 265° 0.81 (0.92) m/s | 3.4 |
| 16:00 | Cloudy | 4 °C | 0% | 79% | 78% | 761 mm Hg | S 183° 1.19 (1.5) m/s | 2 |
| 17:00 |  Overcast | 4 °C | 0% | 89% | 81% | 761 mm Hg | S 176° 0.39 (0.53) m/s | 1 |
| 18:00 | Overcast | 4 °C | 0% | 100% | 84% | 761 mm Hg | ESE 105° 1.69 (2.39) m/s | 0.3 |
| 19:00 | Overcast | 3 °C | 0% | 100% | 87% | 760 mm Hg | ENE 66° 2.31 (3.42) m/s | 0 |
| 20:00 | Overcast | 3 °C | 0% | 100% | 91% | 760 mm Hg | ENE 59° 3.19 (5) m/s | 0 |
| 21:00 | Overcast | 3 °C | 0% | 100% | 93% | 758 mm Hg | NE 56° 3.89 (5.89) m/s | 0 |
| 22:00 | Overcast | 3 °C | 0% | 100% | 93% | 758 mm Hg | ENE 78° 3.61 (5.47) m/s | 0 |
| 23:00 | Overcast | 3 °C | 0% | 100% | 79% | 755 mm Hg | E 86° 3.81 (5.86) m/s | 0 |
Frequently asked questions about the weather in Niagara Falls
Today in Niagara Falls the temperature ranges from 1 °C to 4 °C, wind up to 3.89 m/s. Check the detailed hourly forecast above for more information.
The precipitation probability in Niagara Falls today is 74%. View the full multi-day forecast above to see the rain chances for each upcoming day.
The wind speed in Niagara Falls today reaches up to 3.89 m/s with gusts up to 5.89 m/s. Check the detailed wind chart above for hourly wind data.
The air humidity in Niagara Falls today ranges from 74% to 100%. View the humidity chart above for hourly details.
The UV index in Niagara Falls today reaches up to 4. Check the UV index chart above for hourly values throughout the day.
The atmospheric pressure in Niagara Falls today ranges from 755 to 764 mm Hg. View the pressure chart above for hourly readings.
Cloud cover in Niagara Falls today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.
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.