5-day weather forecast Niagara 17-07-2026

Weather forecast Niagara today 17.07.2026: sunny, temperature from 16 °C to 34 °C.

Precipitation probability 24%. Wind up to 3.89 m/s (gusts 6.64 m/s). Air humidity 36–100%, atmospheric pressure 758–764 mm Hg, UV index up to 4.3.

Sunrise 05:18
Sunset 20:37

Waxing Crescent15% illuminated
Moonrise 09:04 · Moonset 22:28

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Table

Fri, Jul 17, 2026

Sat, Jul 18 →

Forecast from 16 °C to 34 °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)	18	18	17	17	16	16	16	17	19	18	23	26	29	30	32	33	33	34	28	24	22	21	22	21
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.04	0.08	0	0.03	0.05	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 (%)	0	2	2	1	2	4	10	19	6	100	2	0	0	0	3	2	22	15	88	84	32	71	76	15
Rain chance (%)	13	13	13	13	14	14	16	16	15	9	4	3	2	2	1	1	2	1	14	21	13	22	24	14

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)	1.5	1.31	1.19	1.11	1.39	1.11	1.31	1.39	1.81	2.31	2.61	2.5	2.19	1.5	1	1.39	2.5	3.39	3.39	3.89	3.31	2.69	2.89	1.19
Wind gust (m/s)	3.14	2.72	2.53	2.31	2.94	2.19	2.58	2.67	2.42	2.72	3.33	3.28	3.06	2.22	1.25	1.83	3.28	4.47	4.64	6.22	6.64	5.67	5.67	2.53
Wind direction (°)	ESE 119°	SE 128°	SE 141°	SSE 158°	SSE 151°	SSE 149°	S 174°	SSE 168°	S 184°	SSW 196°	S 183°	SSE 168°	SSE 165°	SSE 157°	SSE 166°	S 174°	S 189°	S 178°	SSE 150°	SE 135°	SE 143°	SSE 164°	S 186°	S 191°

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 (%)	89	89	89	90	91	92	95	93	91	100	62	59	53	51	46	44	44	36	58	70	82	84	82	89

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)	764	764	764	764	764	764	764	764	764	763	763	762	762	761	761	761	760	759	759	758	758	758	758	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	0.1	0.2	0.5	0.8	2.4	3.2	3.4	4.3	3.3	2.1	0.6	0.4	0.2	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)	73.8	74.5	74.5	73.6	72.2	70.3	67.5	49.9	33.2	22.2	16.6	15.2	11.8	8.7	7.5	6.8	6.1	5.5	5	4.9	4.7	4.4	4.2	4.3
PM10 (µg/m³)	75.7	76.1	76.1	75.2	74	72.2	68.9	51	33.9	23	17.5	16.2	12.8	9.7	8.5	7.8	7	6.4	5.8	5.6	5.2	4.8	4.6	4.6
Ozone (O₃) (µg/m³)	145	144	141	138	133	126	118	111	107	104	103	104	106	108	109	109	108	104	99	94	90	85	83	83
NO₂ (µg/m³)	3.1	3.3	3.5	3.8	3.8	3.6	3.2	2.7	2.1	1.5	1	0.7	0.6	0.5	0.5	0.5	0.5	0.6	0.7	0.8	1	1.2	1.4	1.4
SO₂ (µg/m³)	3	2.9	2.8	2.8	2.7	2.4	2.1	1.7	1.2	0.7	0.4	0.3	0.4	0.5	0.5	0.4	0.4	0.4	0.3	0.3	0.3	0.3	0.3	0.4
CO (µg/m³)	178	179	179	179	178	174	169	164	159	155	152	153	156	158	158	156	152	144	133	127	128	134	138	140

Fri, Jul 17, 2026

Sat, Jul 18 →

Frequently asked questions about the weather in Niagara

Today in Niagara the temperature ranges from 16 °C to 34 °C, wind up to 3.89 m/s. Check the detailed hourly forecast above for more information.

The precipitation probability in Niagara today is 24%. View the full multi-day forecast above to see the rain chances for each upcoming day.

The wind speed in Niagara today reaches up to 3.89 m/s with gusts up to 6.64 m/s. Check the detailed wind chart above for hourly wind data.

The air humidity in Niagara today ranges from 36% to 100%. View the humidity chart above for hourly details.

The UV index in Niagara today reaches up to 4.3. Check the UV index chart above for hourly values throughout the day.

The atmospheric pressure in Niagara today ranges from 758 to 764 mm Hg. View the pressure chart above for hourly readings.

Cloud cover in Niagara today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.

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 →