5-day weather forecast Niagara 20-05-2026

Weather forecast Niagara Wednesday, May 20 20.05.2026: sunny, temperature from 3 °C to 15 °C.

No precipitation expected. Wind up to 5.39 m/s (gusts 7.36 m/s). Air humidity 31–85%, atmospheric pressure 766–772 mm Hg, UV index up to 7.1.

Sunrise 05:15
Sunset 20:22

Waxing Crescent15% illuminated
Moonrise 08:43 · Moonset 00:15

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← Tue, May 19

Wed, May 20, 2026

Thu, May 21 →

Forecast from 3 °C to 15 °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)	7	7	6	5	4	3	3	4	6	7	9	10	12	13	14	15	15	14	13	10	7	6	4	3
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	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	89	74	56	57	77	81	82	49	2	30	3	15	25	19	14	12	15	16	13	10	8	7	5
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	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)	5.39	5.19	4.61	4.31	3.81	3.11	2.61	3.5	3.19	3	3.31	2.89	2.81	2.69	2.5	2	1.69	1.39	1.31	3.19	2.69	2.19	1.81	1.61
Wind gust (m/s)	7.36	7.08	6.17	5.81	5.47	4.69	3.61	4.22	3.67	3.44	3.81	3.33	3.22	3.11	2.89	2.31	1.97	1.61	1.61	4.22	4.56	4.33	3.78	3.36
Wind direction (°)	NW 314°	NW 317°	NW 322°	NNW 328°	NNW 331°	NNW 328°	NNW 328°	NNW 336°	NNW 339°	NNW 340°	NNW 339°	NNW 338°	NNW 340°	NNW 344°	N 352°	N 355°	N 9°	N 8°	NE 53°	ESE 118°	SE 131°	SE 131°	SE 127°	SE 125°

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 (%)	58	56	61	71	80	84	85	74	62	53	46	41	38	35	33	32	31	32	35	52	63	67	71	72

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)	766	766	767	767	768	769	769	770	770	770	770	770	770	770	769	769	769	769	769	770	770	771	772	772

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	0.5	1.3	2.3	3.2	4.4	6.6	7.1	6.5	5.2	3.7	2.2	0.9	0.3	0	0	0	0

← Tue, May 19

Wed, May 20, 2026

Thu, May 21 →

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 →