5-day weather forecast Niagara 21-07-2026

Weather forecast Niagara Tuesday, July 21 21.07.2026: patchy rain possible, temperature from 12 °C to 22 °C.

Precipitation probability 43%. Wind up to 6.5 m/s (gusts 7.94 m/s). Air humidity 55–99%, atmospheric pressure 750–762 mm Hg, UV index up to 6.

Sunrise 05:23
Sunset 20:33

First Quarter53% illuminated
Moonrise 14:11 · Moonset 23:49

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Table

← Mon, Jul 20

Tue, Jul 21, 2026

Forecast from 12 °C to 22 °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)	19	19	17	17	17	16	16	18	21	22	22	19	18	18	16	15	13	12	12	12	12	12	12	12
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0.01	0.06	0.1	0.13	0.19	0.1	0.1	0.01	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	9	21	15	26	26	29	47	32	78	51	76	82	100	100	100	100	100	100	100	69	38	7	6
Rain chance (%)	43	14	17	20	22	22	18	18	7	10	17	21	29	35	31	31	22	21	21	21	13	8	5	4

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)	2.69	3.31	2.89	2.39	2.31	2.81	2.69	3.61	5	6	6.39	5.69	6	6.5	6.39	6.19	6.11	6.19	6.39	6.5	6	5.39	4.89	4.19
Wind gust (m/s)	5.67	6.92	6.08	5.03	4.83	5.89	5.67	6.81	6.53	6.89	7.36	6.56	7.11	7.83	7.61	7.31	7.03	7.31	7.61	7.94	7.81	7.69	7.64	6.81
Wind direction (°)	SW 216°	WNW 296°	WNW 294°	W 273°	W 281°	WNW 287°	WNW 282°	WNW 287°	NW 308°	NW 316°	NW 318°	NW 314°	NW 313°	NW 316°	NW 324°	NNW 333°	NNW 341°	NNW 343°	NNW 344°	NNW 346°	NNW 347°	NNW 347°	NNW 348°	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 (%)	99	91	93	94	95	95	94	89	68	56	55	68	78	76	76	76	76	76	75	75	71	68	64	62

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)	751	751	751	751	750	750	750	751	751	751	752	752	753	754	755	756	758	758	760	761	761	761	762	762

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	6	5	5	4	4	4	4	3	3	3	3	3	4	0	0	0

← Mon, Jul 20

Tue, Jul 21, 2026

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 →