5-day weather forecast Niagara Falls 18-08-2026
Weather forecast Niagara Falls tomorrow 18.08.2026: overcast, temperature from 9 °C to 10 °C.
Precipitation probability 33%. Wind up to 10.81 m/s (gusts 15.92 m/s). Air humidity 85–94%, atmospheric pressure 764–767 mm Hg, UV index up to 7.3.
5 days at a glance — tap a day to open it
Sunrise 06:25
Sunset 20:14
Sunset 20:14
First Quarter37% illuminated
Moonrise 13:23 · Moonset 22:50
Moonrise 13:23 · Moonset 22:50
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Overcast | 9 °C | 27% | 100% | 85% | 767 mm Hg | NW 314° 9.19 (11.72) m/s | 0 |
| 01:00 |  Cloudy | 9 °C | 23% | 77% | 86% | 767 mm Hg | NW 306° 9.81 (13.11) m/s | 0 |
| 02:00 | Overcast | 9 °C | 28% | 100% | 87% | 767 mm Hg | NW 309° 9.69 (12.83) m/s | 0 |
| 03:00 | Overcast | 9 °C | 29% | 100% | 88% | 767 mm Hg | NW 316° 9.31 (11.92) m/s | 0 |
| 04:00 | Overcast | 9 °C | 29% | 100% | 89% | 767 mm Hg | NW 316° 9.69 (12.42) m/s | 0 |
| 05:00 | Overcast | 9 °C | 30% | 100% | 90% | 767 mm Hg | NW 309° 9.5 (13.22) m/s | 0 |
| 06:00 | Overcast | 10 °C | 30% | 100% | 90% | 767 mm Hg | NW 309° 10 (13.92) m/s | 0 |
| 07:00 |  Overcast | 10 °C | 30% | 100% | 91% | 767 mm Hg | NW 313° 9.89 (13.86) m/s | 0.1 |
| 08:00 | Overcast | 10 °C | 31% | 100% | 91% | 767 mm Hg | NW 312° 9.89 (14) m/s | 0.6 |
| 09:00 | Overcast | 10 °C | 31% | 100% | 92% | 767 mm Hg | NW 309° 10.11 (14.61) m/s | 1.5 |
| 10:00 | Overcast | 10 °C | 31% | 100% | 92% | 767 mm Hg | NW 312° 10 (14.22) m/s | 3.1 |
| 11:00 | Overcast | 10 °C | 31% | 100% | 92% | 767 mm Hg | NW 309° 10.19 (15.03) m/s | 4.9 |
| 12:00 | Overcast | 10 °C | 31% | 100% | 92% | 766 mm Hg | NW 315° 10.19 (14.53) m/s | 6.7 |
| 13:00 | Overcast | 10 °C | 32% | 100% | 93% | 766 mm Hg | NW 311° 10.11 (14.83) m/s | 7.2 |
| 14:00 | Overcast | 10 °C | 32% | 100% | 93% | 766 mm Hg | NW 310° 10.11 (15.11) m/s | 7.3 |
| 15:00 | Overcast | 10 °C | 32% | 100% | 93% | 765 mm Hg | NW 312° 9.69 (14.53) m/s | 6.1 |
| 16:00 | Overcast | 10 °C | 32% | 100% | 93% | 765 mm Hg | NW 310° 9.81 (14.89) m/s | 4.3 |
| 17:00 | Overcast | 10 °C | 32% | 100% | 93% | 765 mm Hg | NW 312° 9.5 (14.5) m/s | 2.5 |
| 18:00 | Overcast | 10 °C | 32% | 100% | 93% | 765 mm Hg | NW 312° 9.5 (14.5) m/s | 1.1 |
| 19:00 | Overcast | 10 °C | 32% | 100% | 93% | 765 mm Hg | NW 311° 9.5 (14.5) m/s | 0.3 |
| 20:00 | Overcast | 10 °C | 32% | 100% | 94% | 765 mm Hg | NW 318° 9.11 (13.5) m/s | 0 |
| 21:00 | Overcast | 10 °C | 32% | 100% | 94% | 765 mm Hg | NW 318° 9.5 (14) m/s | 0 |
| 22:00 | Overcast | 10 °C | 32% | 100% | 94% | 764 mm Hg | NW 323° 9.89 (14.11) m/s | 0 |
| 23:00 |  Patchy rain possible | 10 °C | 33% (0.01 mm/hr) | 100% | 94% | 765 mm Hg | NW 315° 10.81 (15.92) m/s | 0 |
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.