5-day weather forecast Niagara 18-05-2026
Weather forecast Niagara tomorrow 18.05.2026: fog, temperature from 10 °C to 25 °C.
Precipitation probability 86%. Wind up to 4.39 m/s (gusts 8.08 m/s). Air humidity 59–100%, atmospheric pressure 754–758 mm Hg, UV index up to 6.6.
Sunrise 05:17
Sunset 20:20
Sunset 20:20
Waxing Crescent2% illuminated
Moonrise 06:15 · Moonset 23:23
Moonrise 06:15 · Moonset 23:23
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Patchy rain possible | 10 °C | 86% (0.02 mm/hr) | 100% | 99% | 758 mm Hg | ESE 109° 2.19 (3.5) m/s | 0 |
| 01:00 |  Overcast | 10 °C | 0% | 100% | 100% | 758 mm Hg | ESE 115° 2.11 (3.36) m/s | 0 |
| 02:00 | Overcast | 10 °C | 0% | 100% | 98% | 756 mm Hg | S 183° 0.89 (1.42) m/s | 0 |
| 03:00 |  Light drizzle | 10 °C | 100% (0.7 mm/hr) | 100% | 97% | 755 mm Hg | SE 144° 3.31 (6.42) m/s | 0 |
| 04:00 |  Light rain | 10 °C | 100% (1.93 mm/hr) | 91% | 98% | 755 mm Hg | SSE 167° 3.61 (7.08) m/s | 0 |
| 05:00 | Light drizzle | 11 °C | 100% (0.69 mm/hr) | 85% | 98% | 755 mm Hg | S 189° 2.69 (5.75) m/s | 0 |
| 06:00 |  Fog | 12 °C | 0% | 100% | 99% | 755 mm Hg | SSE 163° 3.11 (6.61) m/s | 0 |
| 07:00 |  Overcast | 13 °C | 0% | 100% | 99% | 754 mm Hg | S 173° 3.81 (8.08) m/s | 0.2 |
| 08:00 | Fog | 14 °C | 0% | 100% | 99% | 754 mm Hg | SSW 205° 2.19 (3.53) m/s | 0.6 |
| 09:00 | Fog | 16 °C | 0% | 100% | 98% | 755 mm Hg | SSW 208° 2.5 (3.58) m/s | 1.6 |
| 10:00 |  Light drizzle | 18 °C | 100% (0.59 mm/hr) | 91% | 93% | 755 mm Hg | SSW 213° 2.89 (3.86) m/s | 1.8 |
| 11:00 | Light drizzle | 19 °C | 100% (0.21 mm/hr) | 100% | 90% | 756 mm Hg | SSW 198° 3.61 (4.69) m/s | 1.9 |
| 12:00 |  Patchy rain possible | 20 °C | 100% (0.05 mm/hr) | 61% | 88% | 755 mm Hg | SSW 212° 1.61 (2.25) m/s | 5 |
| 13:00 |  Partly cloudy | 21 °C | 0% | 53% | 75% | 755 mm Hg | WSW 248° 2.11 (2.47) m/s | 2.4 |
| 14:00 | Light drizzle | 23 °C | 100% (0.42 mm/hr) | 94% | 68% | 755 mm Hg | SW 225° 4.39 (5.06) m/s | 6.6 |
| 15:00 | Patchy rain possible | 24 °C | 79% (0.02 mm/hr) | 80% | 61% | 755 mm Hg | SW 222° 4.11 (4.72) m/s | 4.5 |
| 16:00 | Patchy rain possible | 25 °C | 66% (0.01 mm/hr) | 54% | 59% | 755 mm Hg | SSW 197° 3.61 (4.33) m/s | 3.8 |
| 17:00 | Patchy rain possible | 24 °C | 82% (0.03 mm/hr) | 55% | 64% | 755 mm Hg | S 186° 3.11 (3.89) m/s | 2.2 |
| 18:00 |  Patchy light rain with thunder | 22 °C | 100% (1.56 mm/hr) | 54% | 80% | 755 mm Hg | S 177° 3.39 (5.47) m/s | 1 |
| 19:00 |  Moderate or heavy rain shower | 20 °C | 100% (2.96 mm/hr) | 78% | 89% | 755 mm Hg | S 180° 3.5 (7.36) m/s | 0.3 |
| 20:00 | Fog | 19 °C | 100% (0.11 mm/hr) | 100% | 97% | 755 mm Hg | SSE 164° 2.31 (4.83) m/s | 0 |
| 21:00 |  Fog | 18 °C | 0% | 100% | 98% | 755 mm Hg | SSE 152° 2.11 (4.42) m/s | 0 |
| 22:00 |  Light rain shower | 17 °C | 100% (0.39 mm/hr) | 100% | 99% | 755 mm Hg | S 180° 2.11 (4.42) m/s | 0 |
| 23:00 | Fog | 17 °C | 62% (0.01 mm/hr) | 100% | 99% | 755 mm Hg | SSE 166° 1.89 (4) m/s | 0 |
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.