5-day weather forecast Toronto 17-05-2026

Weather forecast Toronto tomorrow 17.05.2026: sunny, temperature from 12 °C to 20 °C.

Precipitation probability 69%. Wind up to 3.31 m/s (gusts 6.44 m/s). Air humidity 58–96%, atmospheric pressure 759–764 mm Hg, UV index up to 7.4.

Sunrise 05:51
Sunset 20:38

Waxing Crescent0% illuminated
Moonrise 05:54 · Moonset 22:26

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Table

← Sat, May 16

Sun, May 17, 2026

Mon, May 18 →

Forecast from 12 °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)	15	14	14	13	13	12	12	13	14	15	16	17	18	19	19	20	20	19	18	17	16	15	15	14
Precipitation (mm/hr)	0	0	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0	0	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 (%)	14	13	83	88	81	78	87	72	89	88	0	0	72	0	0	0	2	4	5	3	3	13	48	31
Rain chance (%)	0	0	69	83	74	78	84	60	79	81	0	0	75	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)	2.31	2.11	1.69	1.61	1.31	1.31	1.39	1.5	1.61	1.61	1.39	1.11	0.81	1	1.11	1.31	1.69	2.61	3.31	3.11	2.5	2.39	2.89	2.61
Wind gust (m/s)	4.83	4.42	3.58	3.36	2.72	2.72	2.94	3.11	2.78	2.56	2.08	1.56	1.08	1.42	1.64	2.19	3.08	4.92	6.42	6.44	5.25	5.03	6.08	5.47
Wind direction (°)	WSW 246°	WSW 247°	WSW 249°	WSW 248°	W 274°	WNW 292°	NW 315°	NW 322°	NNW 344°	N 3°	NE 38°	NE 46°	E 90°	SSE 152°	SE 138°	SE 144°	SE 140°	SE 128°	SE 138°	SE 129°	ESE 118°	E 98°	E 92°	ESE 105°

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 (%)	94	95	95	96	96	96	96	91	81	72	66	63	60	59	58	59	60	61	63	66	68	70	73	76

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)	759	760	760	760	761	761	761	762	763	764	763	764	764	764	764	764	764	764	764	764	764	764	764	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	0.2	0.8	1.9	3.4	5.2	6.6	7.4	7.4	6.4	4.7	2.8	1.3	0.5	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)	12.8	11.9	11.7	12	13.5	15.3	17.4	20.9	23.5	25.3	26.5	27.4	28.1	28.1	26.8	26.6	26.2	28.3	31.3	34	34.4	27.6	24.4	24
PM10 (µg/m³)	12.9	12	11.8	12	13.6	15.4	17.5	21	23.7	25.5	26.6	27.5	28.3	28.2	26.9	26.7	26.3	28.4	31.5	34.2	34.5	27.9	24.6	24.3
Ozone (O₃) (µg/m³)	55	54	49	41	38	43	52	62	72	83	91	97	100	100	94	85	75	64	54	47	49	55	57	51
NO₂ (µg/m³)	17.6	17	17.8	19.6	21.5	23.4	25.3	26.7	27.2	27.1	27.3	27.4	27.7	29.8	35.1	42.2	48.1	52.8	56.3	55.8	47.8	35.7	26.8	24.7
SO₂ (µg/m³)	4.9	5.1	5.6	6.4	7.5	9	10.8	12.2	13.1	13.7	14.1	14.2	14.2	14.1	14.1	14	14.1	14.6	15.3	15	12.8	9.7	7.4	6.7
CO (µg/m³)	204.9	178.9	168.9	166.9	173.9	192.9	218.9	236.9	237.9	228.9	221.9	214.9	207.9	212.9	238.9	274.9	303.9	320.9	329.9	320.9	281.9	223.9	178.9	155.9

← Sat, May 16

Sun, May 17, 2026

Mon, May 18 →

Toronto 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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