5-day weather forecast Niagara Falls 21-07-2026
Weather forecast Niagara Falls today 21.07.2026: sunny, temperature from 18 °C to 23 °C.
Precipitation probability 90%. Wind up to 9.69 m/s (gusts 14.11 m/s). Air humidity 70–97%, atmospheric pressure 750–757 mm Hg, UV index up to 3.3.
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Sunset 20:49
Moonrise 14:26 · Moonset Does not set today
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 20 °C | 7% | 0% | 73% | 756 mm Hg | S 189° 4.11 (7.08) m/s | 0 |
| 01:00 | Clear | 21 °C | 7% | 0% | 70% | 757 mm Hg | SSW 204° 3.31 (5.75) m/s | 0 |
| 02:00 | Clear | 19 °C | 8% | 0% | 77% | 755 mm Hg | S 189° 3.69 (6.75) m/s | 0 |
| 03:00 | Clear | 20 °C | 7% | 0% | 73% | 755 mm Hg | SSW 197° 4.69 (8.42) m/s | 0 |
| 04:00 | Clear | 20 °C | 6% | 0% | 70% | 755 mm Hg | SSW 192° 5.11 (9.25) m/s | 0 |
| 05:00 | Clear | 19 °C | 6% | 0% | 72% | 754 mm Hg | S 191° 5.81 (10.11) m/s | 0 |
| 06:00 |  Sunny | 20 °C | 6% | 0% | 72% | 753 mm Hg | SSW 195° 6.31 (10.61) m/s | 0 |
| 07:00 | Sunny | 21 °C | 6% | 0% | 72% | 753 mm Hg | SSW 203° 7 (11.61) m/s | 0.1 |
| 08:00 |  Patchy rain possible | 22 °C | 15% (0.01 mm/hr) | 82% | 70% | 753 mm Hg | SSW 201° 7.5 (11.61) m/s | 0.4 |
| 09:00 |  Light drizzle | 19 °C | 61% (0.44 mm/hr) | 100% | 93% | 752 mm Hg | SSW 203° 7.81 (12.33) m/s | 0.5 |
| 10:00 |  Moderate rain | 18 °C | 90% (4.52 mm/hr) | 98% | 97% | 752 mm Hg | SW 218° 8.81 (12.94) m/s | 2.2 |
| 11:00 | Moderate rain | 21 °C | 81% (3.03 mm/hr) | 83% | 92% | 752 mm Hg | SW 221° 9.19 (13.11) m/s | 2.6 |
| 12:00 |  Light rain | 21 °C | 74% (0.9 mm/hr) | 100% | 96% | 752 mm Hg | SW 221° 8.61 (12.22) m/s | 3.3 |
| 13:00 | Light drizzle | 22 °C | 40% (0.16 mm/hr) | 100% | 85% | 752 mm Hg | SW 224° 9.69 (13.94) m/s | 2.7 |
| 14:00 | Patchy rain possible | 22 °C | 33% (0.11 mm/hr) | 86% | 84% | 752 mm Hg | SW 219° 9.61 (14.11) m/s | 2.9 |
| 15:00 | Patchy rain possible | 23 °C | 54% (0.75 mm/hr) | 77% | 79% | 751 mm Hg | SW 218° 9.11 (11.78) m/s | 0.9 |
| 16:00 |  Moderate rain at times | 23 °C | 68% (2.74 mm/hr) | 52% | 82% | 751 mm Hg | SW 215° 8.39 (12.17) m/s | 3.2 |
| 17:00 |  Light rain shower | 22 °C | 75% (1.95 mm/hr) | 86% | 88% | 750 mm Hg | SW 226° 6.69 (11.44) m/s | 2.7 |
| 18:00 |  Moderate or heavy rain shower | 23 °C | 79% (3.83 mm/hr) | 77% | 84% | 750 mm Hg | W 259° 6.31 (12.47) m/s | 1.3 |
| 19:00 | Patchy rain possible | 23 °C | 73% (2.26 mm/hr) | 83% | 83% | 750 mm Hg | W 266° 6.39 (13.42) m/s | 0.5 |
| 20:00 | Patchy rain possible | 22 °C | 54% (0.54 mm/hr) | 79% | 85% | 750 mm Hg | W 274° 5.19 (11.06) m/s | 0.1 |
| 21:00 |  Patchy rain possible | 21 °C | 61% (0.69 mm/hr) | 80% | 89% | 751 mm Hg | W 280° 5.39 (10.42) m/s | 0 |
| 22:00 | Patchy rain possible | 20 °C | 25% (0.02 mm/hr) | 72% | 90% | 752 mm Hg | WNW 294° 5.81 (9.86) m/s | 0 |
| 23:00 | Clear | 19 °C | 13% | 16% | 87% | 752 mm Hg | WNW 291° 6 (9.86) m/s | 0 |
Frequently asked questions about the weather in Niagara Falls
Today in Niagara Falls the temperature ranges from 18 °C to 23 °C, wind up to 9.69 m/s. Check the detailed hourly forecast above for more information.
The precipitation probability in Niagara Falls today is 90%. 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 9.69 m/s with gusts up to 14.11 m/s. Check the detailed wind chart above for hourly wind data.
The air humidity in Niagara Falls today ranges from 70% to 97%. View the humidity chart above for hourly details.
The UV index in Niagara Falls today reaches up to 3.3. Check the UV index chart above for hourly values throughout the day.
The atmospheric pressure in Niagara Falls today ranges from 750 to 757 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.
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.