5-day weather forecast Niagara Sep 18, 2026
11°Weather forecast Niagara Friday Sep 18, 2026: overcast, temperature from 8 °C to 11 °C.
Precipitation probability 92%. Wind up to 3.69 m/s (gusts 9.5 m/s). Air humidity 64–99%, atmospheric pressure 768–773 mm Hg, UV index up to 2.1.
5 days at a glance — tap a day to open it
Sunrise 06:34
Sunset 18:58
Sunset 18:58
First Quarter53% illuminated
Moonrise 15:15 · Moonset 23:07
Moonrise 15:15 · Moonset 23:07
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Overcast | 11 °C | 28% | 100% | 88% | 771 mm Hg | NNE 26° 2.39 (9.5) m/s | 0 |
| 01:00 | Overcast | 10 °C | 28% | 100% | 86% | 771 mm Hg | NE 42° 2.5 (8.92) m/s | 0 |
| 02:00 | Overcast | 10 °C | 27% | 99% | 85% | 772 mm Hg | NE 40° 1.81 (7.61) m/s | 0 |
| 03:00 | Overcast | 10 °C | 29% | 100% | 88% | 772 mm Hg | NE 36° 1.81 (7.14) m/s | 0 |
| 04:00 | Overcast | 10 °C | 23% | 100% | 79% | 772 mm Hg | NNE 26° 1.61 (7.22) m/s | 0 |
| 05:00 | Overcast | 10 °C | 20% | 100% | 72% | 772 mm Hg | NE 41° 1.61 (7.22) m/s | 0 |
| 06:00 | Overcast | 10 °C | 17% | 100% | 66% | 773 mm Hg | NE 45° 2 (7.69) m/s | 0 |
| 07:00 | Overcast | 9 °C | 16% | 100% | 64% | 772 mm Hg | NE 56° 1.81 (7.31) m/s | 0 |
| 08:00 | Overcast | 9 °C | 16% | 100% | 64% | 773 mm Hg | NE 55° 2.11 (6.92) m/s | 0.1 |
| 09:00 | Overcast | 9 °C | 16% | 100% | 64% | 773 mm Hg | E 82° 2.11 (6.03) m/s | 0.3 |
| 10:00 | Overcast | 10 °C | 16% | 100% | 64% | 773 mm Hg | ENE 77° 2.61 (5) m/s | 0.7 |
| 11:00 |  Light drizzle | 9 °C | 40% (0.2 mm/hr) | 100% | 75% | 773 mm Hg | ENE 76° 2.31 (5.5) m/s | 0.6 |
| 12:00 |  Light rain | 9 °C | 78% (1.68 mm/hr) | 100% | 89% | 772 mm Hg | ESE 107° 2.31 (5.5) m/s | 1.2 |
| 13:00 | Light rain | 8 °C | 78% (1.31 mm/hr) | 100% | 94% | 771 mm Hg | ESE 120° 2.61 (7.33) m/s | 1.4 |
| 14:00 | Light rain | 9 °C | 84% (2.47 mm/hr) | 100% | 94% | 771 mm Hg | ESE 104° 2.69 (6.03) m/s | 2.1 |
| 15:00 | Light rain | 9 °C | 81% (1.65 mm/hr) | 100% | 98% | 770 mm Hg | E 101° 2.69 (7) m/s | 0.6 |
| 16:00 |  Moderate rain | 9 °C | 87% (2.59 mm/hr) | 100% | 98% | 770 mm Hg | E 92° 3 (7) m/s | 0.4 |
| 17:00 | Moderate rain | 8 °C | 92% (5.19 mm/hr) | 100% | 98% | 769 mm Hg | E 97° 3.69 (7.89) m/s | 0.1 |
| 18:00 | Moderate rain | 8 °C | 88% (3.05 mm/hr) | 100% | 98% | 770 mm Hg | ENE 74° 2.69 (6.5) m/s | 0 |
| 19:00 |  Moderate rain | 8 °C | 89% (3.4 mm/hr) | 100% | 98% | 769 mm Hg | E 79° 3.11 (7.5) m/s | 0 |
| 20:00 |  Light rain | 8 °C | 74% (0.81 mm/hr) | 100% | 98% | 770 mm Hg | E 100° 3.19 (7.72) m/s | 0 |
| 21:00 | Light rain | 8 °C | 76% (0.94 mm/hr) | 100% | 98% | 769 mm Hg | ESE 112° 2.81 (8.31) m/s | 0 |
| 22:00 | Light rain | 8 °C | 75% (0.86 mm/hr) | 100% | 98% | 769 mm Hg | E 81° 1.89 (7.5) m/s | 0 |
| 23:00 | Light rain | 8 °C | 79% (1.18 mm/hr) | 100% | 99% | 768 mm Hg | E 89° 1.69 (7.53) m/s | 0 |
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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.