5-day weather forecast Niagara 18-06-2026

Weather forecast Niagara Thursday, June 18 18.06.2026: partly cloudy, temperature from 9 °C to 20 °C.

Precipitation probability 57%. Wind up to 5.39 m/s (gusts 6.22 m/s). Air humidity 40–99%, atmospheric pressure 748–758 mm Hg, UV index up to 7.4.

Sunrise 05:01
Sunset 20:44

Waxing Crescent19% illuminated
Moonrise 08:42 · Moonset 23:42

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Table

← Wed, Jun 17

Thu, Jun 18, 2026

Fri, Jun 19 →

Forecast from 9 °C to 20 °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)	10	10	10	10	10	9	10	11	13	15	17	19	20	19	20	19	19	16	15	14	14	14	12	10
Precipitation (mm/hr)	0.21	0.09	0.01	0	0	0	0	0	0	0	0	0.11	0	0	0.06	0.47	0.11	0.92	0.02	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	59	43	29	48	71	32	50	75	61	52	60	84	74	46	24	8	12
Rain chance (%)	57	52	44	42	42	39	38	20	16	7	7	17	3	4	17	36	17	52	24	19	12	7	5	7

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	2.69	2.69	2.5	2.89	3.19	3.39	3.81	4	5.19	5.39	5.11	4.39	5.31	5	5.19	4	3.31	2.81	2.5	2.69	2.81	3.39	2.69
Wind gust (m/s)	3.75	4.03	4.17	4.19	4.78	5.11	5.64	6.03	5.22	5.97	6.22	5.86	5.06	6.11	6.11	5.97	4.89	4.72	5.89	5.25	5.67	5.58	5.64	5.67
Wind direction (°)	N 354°	N 354°	N 350°	NNW 328°	NW 317°	NW 316°	NW 318°	NW 314°	NW 316°	NW 318°	NW 315°	NW 319°	NW 318°	WNW 298°	WNW 297°	WNW 299°	NW 323°	NW 316°	WNW 293°	NW 311°	NW 311°	WNW 298°	WNW 300°	WNW 287°

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 (%)	99	98	98	98	97	96	95	92	89	68	59	51	42	40	57	54	60	73	86	83	77	69	63	71

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)	748	748	748	749	749	749	750	751	752	752	752	752	752	752	753	753	754	754	755	755	755	756	757	758

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	0.1	0.3	1	2.7	4	5.6	7.3	7.4	2.4	5.4	3.8	2.3	0.3	0.2	0.1	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)	1.3	0.7	0.8	0.7	0.6	0.6	0.6	0.8	1.1	1.5	1.7	1.6	1.5	1.6	1.7	1.9	1.8	1.9	1.8	1.7	1.7	1.7	1.7	1.7
PM10 (µg/m³)	1.4	0.7	0.8	0.7	0.6	0.6	0.7	0.9	1.2	1.7	1.9	1.8	1.8	1.7	1.9	2.1	2.1	2.1	2	1.9	1.8	1.8	1.8	1.8
Ozone (O₃) (µg/m³)	82	78	77	77	76	74	71	69	67	65	64	64	64	64	65	66	66	64	60	57	55	54	53	53
NO₂ (µg/m³)	1.5	1.5	1.4	1.3	1.2	1.1	0.9	0.8	0.7	0.7	0.6	0.5	0.4	0.3	0.3	0.2	0.3	0.4	0.6	0.9	1.2	1.6	1.9	1.9
SO₂ (µg/m³)	0.3	0.2	0.2	0.2	0.2	0.2	0.3	0.3	0.3	0.2	0.2	0.2	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.2	0.2	0.2
CO (µg/m³)	111	111	109	107	105	104	103	103	104	106	107	105	102	100	99	99	100	104	108	112	113	113	112	110

← Wed, Jun 17

Thu, Jun 18, 2026

Fri, Jun 19 →

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.

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