5-day weather forecast Niagara 21-05-2026
Weather forecast Niagara Thursday, May 21 21.05.2026: sunny, temperature from 1 °C to 15 °C.
No precipitation expected. Wind up to 4.19 m/s (gusts 4.83 m/s). Air humidity 28–85%, atmospheric pressure 768–773 mm Hg, UV index up to 5.
Sunrise 05:14
Sunset 20:24
Sunset 20:24
Waxing Crescent24% illuminated
Moonrise 10:05 · Moonset 00:55
Moonrise 10:05 · Moonset 00:55
Chart
Table
Thu, May 21, 2026
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 2 °C | 0% | 20% | 81% | 773 mm Hg | S 171° 1.19 (2.53) m/s | 0 |
| 01:00 | Clear | 2 °C | 0% | 8% | 81% | 773 mm Hg | S 187° 0.89 (1.89) m/s | 0 |
| 02:00 |  Partly cloudy | 1 °C | 0% | 33% | 82% | 773 mm Hg | S 189° 1 (2.11) m/s | 0 |
| 03:00 | Clear | 1 °C | 0% | 13% | 83% | 773 mm Hg | SSW 193° 0.89 (1.89) m/s | 0 |
| 04:00 | Clear | 1 °C | 0% | 14% | 83% | 773 mm Hg | S 179° 0.61 (1.25) m/s | 0 |
| 05:00 | Clear | 1 °C | 0% | 7% | 85% | 773 mm Hg | SSE 159° 0.61 (1.25) m/s | 0 |
| 06:00 |  Sunny | 3 °C | 0% | 6% | 78% | 773 mm Hg | SSE 156° 0.89 (1.83) m/s | 0.1 |
| 07:00 | Sunny | 5 °C | 0% | 16% | 67% | 773 mm Hg | ESE 119° 1 (1.39) m/s | 0.5 |
| 08:00 | Sunny | 7 °C | 0% | 17% | 54% | 773 mm Hg | SE 138° 1.69 (2) m/s | 3 |
| 09:00 | Sunny | 9 °C | 0% | 8% | 45% | 772 mm Hg | SE 132° 1.81 (2.08) m/s | 3 |
| 10:00 | Sunny | 11 °C | 0% | 13% | 39% | 772 mm Hg | SE 137° 2.5 (2.89) m/s | 4 |
| 11:00 |  Cloudy | 12 °C | 0% | 73% | 35% | 771 mm Hg | SE 141° 2.89 (3.33) m/s | 3 |
| 12:00 | Sunny | 14 °C | 0% | 9% | 32% | 770 mm Hg | SE 139° 2.89 (3.33) m/s | 4 |
| 13:00 | Sunny | 15 °C | 0% | 8% | 30% | 770 mm Hg | SE 143° 3.5 (4.03) m/s | 5 |
| 14:00 | Sunny | 15 °C | 0% | 9% | 28% | 770 mm Hg | SSE 147° 4.19 (4.83) m/s | 5 |
| 15:00 | Sunny | 15 °C | 0% | 7% | 29% | 769 mm Hg | SSE 150° 3.61 (4.14) m/s | 5 |
| 16:00 |  Overcast | 14 °C | 0% | 100% | 31% | 768 mm Hg | SE 146° 3.5 (4.03) m/s | 3 |
| 17:00 |  Partly cloudy | 13 °C | 0% | 49% | 35% | 768 mm Hg | SSE 164° 3.81 (4.56) m/s | 4 |
| 18:00 | Partly cloudy | 11 °C | 0% | 58% | 46% | 768 mm Hg | SSE 160° 3 (4.22) m/s | 4 |
| 19:00 | Partly cloudy | 10 °C | 0% | 56% | 53% | 768 mm Hg | SSE 155° 2.39 (3.75) m/s | 4 |
| 20:00 | Partly cloudy | 9 °C | 0% | 54% | 59% | 768 mm Hg | SE 127° 1.69 (3.14) m/s | 3 |
| 21:00 | Partly cloudy | 8 °C | 0% | 53% | 58% | 768 mm Hg | SSE 158° 1.69 (3.25) m/s | 0 |
| 22:00 |  Cloudy | 8 °C | 0% | 66% | 58% | 768 mm Hg | SE 144° 1.61 (3) m/s | 0 |
| 23:00 |  Overcast | 8 °C | 0% | 88% | 59% | 768 mm Hg | SE 135° 1.89 (3.39) m/s | 0 |
Thu, May 21, 2026
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.