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)	9.19	9.81	9.69	9.31	9.69	9.5	10	9.89	9.89	10.11	10	10.19	10.19	10.11	10.11	9.69	9.81	9.5	9.5	9.5	9.11	9.5	9.89	10.81
Wind gust (m/s)	11.72	13.11	12.83	11.92	12.42	13.22	13.92	13.86	14	14.61	14.22	15.03	14.53	14.83	15.11	14.53	14.89	14.5	14.5	14.5	13.5	14	14.11	15.92
Wind direction (°)	NW 314°	NW 306°	NW 309°	NW 316°	NW 316°	NW 309°	NW 309°	NW 313°	NW 312°	NW 309°	NW 312°	NW 309°	NW 315°	NW 311°	NW 310°	NW 312°	NW 310°	NW 312°	NW 312°	NW 311°	NW 318°	NW 318°	NW 323°	NW 315°

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 (%)	85	86	87	88	89	90	90	91	91	92	92	92	92	93	93	93	93	93	93	93	94	94	94	94

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)	767	767	767	767	767	767	767	767	767	767	767	767	766	766	766	765	765	765	765	765	765	765	764	765

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	0.1	0.6	1.5	3.1	4.9	6.7	7.2	7.3	6.1	4.3	2.5	1.1	0.3	0	0	0	0

Air quality & pollen

Air quality
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
PM2.5 (µg/m³)	5.3	4.8	4.6	4.7	5	5.3	5.5	5.9	5.8	5.2	4.9	4.8	5	5.3	5.6	5.7	5.7	5.7	5.7	5.5	5.3	4.8	4.6	4.9
PM10 (µg/m³)	5.3	4.8	4.6	4.7	5	5.3	5.5	5.9	5.9	5.3	4.9	4.9	5	5.4	5.7	5.8	5.8	5.8	5.7	5.6	5.4	4.8	4.6	4.9
Ozone (O₃) (µg/m³)	55	52	50	47	45	44	43	42	45	53	64	76	88	100	110	118	124	126	121	113	105	100	96	94
NO₂ (µg/m³)	19	17.8	16.8	16.8	17	17.2	17.4	17.5	16.9	15.1	12.6	10.2	7.9	5.6	3.9	3	2.8	3.4	5.5	8.4	10.4	10.7	10.2	9.5
SO₂ (µg/m³)	4.4	4.4	4.5	4.7	5	5.3	5.6	5.9	6.1	6.3	6.5	6.4	5.7	4.8	4	3.6	3.3	3.2	3.2	3.3	3.3	3.3	3.2	3.1
CO (µg/m³)	187	183	182	175	169	193	276	388	463	468	436	395	349	294	245	206	174	156	160	177	192	200	204	201

← Mon, Aug 17

Tue, Aug 18, 2026

Wed, Aug 19 →

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.

Learn more about our methodology →