Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	2.39	2.5	1.81	1.81	1.61	1.61	2	1.81	2.11	2.11	2.61	2.31	2.31	2.61	2.69	2.69	3	3.69	2.69	3.11	3.19	2.81	1.89	1.69
Wind gust (m/s)	9.5	8.92	7.61	7.14	7.22	7.22	7.69	7.31	6.92	6.03	5	5.5	5.5	7.33	6.03	7	7	7.89	6.5	7.5	7.72	8.31	7.5	7.53
Wind direction (°)	NNE 26°	NE 42°	NE 40°	NE 36°	NNE 26°	NE 41°	NE 45°	NE 56°	NE 55°	E 82°	ENE 77°	ENE 76°	ESE 107°	ESE 120°	ESE 104°	E 101°	E 92°	E 97°	ENE 74°	E 79°	E 100°	ESE 112°	E 81°	E 89°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	88	86	85	88	79	72	66	64	64	64	64	75	89	94	94	98	98	98	98	98	98	98	98	99

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	771	771	772	772	772	772	773	772	773	773	773	773	772	771	771	770	770	769	770	769	770	769	769	768

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0	0.1	0.3	0.7	0.6	1.2	1.4	2.1	0.6	0.4	0.1	0	0	0	0	0	0

Air quality & pollen

Air quality is available for the first three days only.

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Fri, Sep 18, 2026

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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.

Learn more about our methodology →