5-day weather forecast Niagara 19-05-2026

Weather forecast Niagara Tuesday, May 19 19.05.2026: fog, temperature from 6 °C to 14 °C.

Precipitation probability 77%. Wind up to 4.89 m/s (gusts 6.28 m/s). Air humidity 61–99%, atmospheric pressure 755–764 mm Hg, UV index up to 6.8.

Sunrise 05:16
Sunset 20:21

Waxing Crescent7% illuminated
Moonrise 07:24 · Moonset below the horizon

Chart

Table

← Mon, May 18

Tue, May 19, 2026

Wed, May 20 →

Forecast from 6 °C to 14 °C and precipitation

Temperature & Precipitation
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
Temperature (°C)	13	12	12	12	12	12	12	12	13	14	14	12	12	12	12	13	13	13	12	11	9	8	7	6
Precipitation (mm/hr)	0.05	1.32	2.52	0.34	1.82	1.44	0	0.06	0	0.07	0.08	0.01	0.01	0	0	0	0	0	0	0	0	0	0	0

Cloud cover and precipitation probability

Cloud cover & Rain chance
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
Cloud cover (%)	100	100	100	100	100	100	100	100	100	100	100	100	95	98	82	76	59	69	42	48	37	44	71	73
Rain chance (%)	77	100	100	100	100	100	0	100	0	100	100	86	74	0	0	0	0	0	0	0	0	0	0	0

Wind speed and direction

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)	2.61	1.89	1.61	3.89	0.61	2	1.5	0.39	1	1.5	1.81	3.31	4.89	4.81	4.69	4.89	4.31	4.11	4	3.5	3.39	3.19	3.31	3
Wind gust (m/s)	3.69	2.75	2.28	6.28	0.97	3.56	2.67	0.72	1.56	2.03	2.72	4.36	6	5.53	5.42	5.64	4.94	4.72	4.61	4.36	4.75	4.5	4.58	4
Wind direction (°)	NNE 21°	N 8°	ENE 77°	ENE 73°	SE 134°	SE 140°	SE 146°	ENE 76°	ESE 105°	S 171°	WNW 295°	NW 323°	NW 309°	NW 309°	NW 306°	NW 312°	NW 319°	NW 320°	NNW 328°	NNW 333°	NNW 347°	N 356°	NNW 347°	NNW 342°

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 (%)	98	98	99	99	99	99	99	99	99	98	99	97	94	86	72	66	62	61	62	67	72	75	81	81

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)	758	758	757	755	755	755	755	755	755	755	755	756	758	759	759	759	760	760	761	761	761	762	763	764

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	0.6	0.7	2.2	2.6	1.1	1.2	6.8	5.4	3.6	1.7	0.6	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)	3.7	2.4	2.2	2.1	3.2	2.4	3.5	3.1	2.1	1.5	1.2	1	1	1	1	1	1	1	1	1	1	1	1	1
PM10 (µg/m³)	4.2	2.7	2.3	2.1	3.3	2.4	3.6	3.3	2.4	1.6	1.2	1	1	1	1	1	1	1	1	1	1	1	1	1
Ozone (O₃) (µg/m³)	60	61	61	60	58	58	63	71	75	72	66	62	62	63	64	65	66	66	65	63	62	62	62	62
NO₂ (µg/m³)	3.7	3.6	3.5	3.5	3.6	3.4	2.8	2.1	1.5	1.3	1.3	1.4	1.4	1.5	1.6	1.6	1.7	1.7	1.7	1.8	1.8	1.8	1.7	1.6
SO₂ (µg/m³)	1.4	1.3	1.3	1.4	1.5	1.5	1.5	1.4	1.3	1.2	1.1	1	1	1	1	1	1.1	1.1	1.1	1.1	1.1	1.1	1	1
CO (µg/m³)	157.9	151.9	146.9	145.9	145.9	145.9	142.9	139.9	137.9	137.9	139.9	139.9	135.9	130.9	126.9	124.9	122.9	121.9	120.9	120.9	119.9	118.9	118.9	117.9

← Mon, May 18

Tue, May 19, 2026

Wed, May 20 →

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 →