St. Catharines / Niagara District Airport, Ontario

Latitude 43.19° N | Longitude 79.17° W

Past 24 Hour Conditions

Imperial units
Graphic

Date / Time (EDT)	Conditions	Temperature (°C)	Temperature (°F)	Wind (km/h)	Wind (mph)	Humidex	Humidex	Relative humidity (%)	Dew point (°C)	Dew point (°F)	Pressure (kPa)	Pressure (inches)	Visibility (km)	Visibility (mi)
19 July 2026
09:00	Mainly Sunny	19 (19.1)	66 (66.4)	NNE 19	NNE 12	*	*	64	12	54	101.5	30.0	24	15
08:00	Mostly Cloudy	19 (18.6)	66 (65.5)	NNE 16	NNE 10	*	*	77	14	58	101.5	30.0	19	12
07:00	Mostly Cloudy	18 (18.2)	65 (64.8)	NNW 7	NNW 4	*	*	81	15	59	101.4	29.9	19	12
06:00	n/a	18 (18.1)	65 (64.6)	N 9	N 6	*	*	76	14	57	101.3	29.9	n/a	n/a
05:00	n/a	18 (18.1)	65 (64.6)	NW 10	NW 6	*	*	77	14	57	101.2	29.9	n/a	n/a
04:00	n/a	18 (18.0)	64 (64.4)	NNW 10	NNW 6	*	*	73	13	56	101.2	29.9	n/a	n/a
03:00	n/a	19 (18.7)	66 (65.7)	N 15	N 9	*	*	70	13	56	101.2	29.9	n/a	n/a
02:00	n/a	19 (19.2)	67 (66.6)	N 20	N 12	*	*	68	13	56	101.1	29.9	n/a	n/a
01:00	n/a	20 (19.9)	68 (67.8)	N 21	N 13	*	*	66	13	56	101.1	29.9	n/a	n/a
00:00	n/a	20 (20.4)	69 (68.7)	NNW 19	NNW 12	25	77	77	16	61	101.0	29.8	n/a	n/a
18 July 2026
23:00	n/a	21 (21.2)	70 (70.2)	NW 17 gusts 32	NW 11 gusts 20	26	79	74	16	61	100.9	29.8	n/a	n/a
22:00	n/a	22 (21.9)	71 (71.4)	NW 23 gusts 38	NW 14 gusts 24	27	81	71	16	61	100.8	29.8	n/a	n/a
21:00	Smoke	22 (22.0)	72 (71.6)	WNW 21	WNW 13	28	82	80	18	65	100.7	29.7	5	3
20:00	Smoke	23 (23.0)	73 (73.4)	WNW 23 gusts 44	WNW 14 gusts 27	29	84	75	18	65	100.5	29.7	5	3
19:00	Smoke	24 (24.3)	76 (75.7)	WNW 24 gusts 46	WNW 15 gusts 29	31	88	72	19	66	100.4	29.6	8	5
18:00	Smoke	25 (24.7)	77 (76.5)	WNW 22 gusts 37	WNW 14 gusts 23	32	90	74	20	68	100.4	29.6	8	5
17:00	Mostly Cloudy	25 (24.5)	76 (76.1)	WNW 20 gusts 33	WNW 12 gusts 21	34	93	86	22	71	100.3	29.6	16	10
16:00	Mostly Cloudy	23 (22.9)	73 (73.2)	SW 10	SW 6	32	90	95	22	72	100.3	29.6	16	10
15:00	Light Rainshower	22 (22.2)	72 (72.0)	SSE 15	SSE 9	31	88	94	21	70	100.3	29.6	16	10
14:00	Mostly Cloudy	27 (26.6)	80 (79.9)	NE 17 gusts 27	NE 11 gusts 17	35	95	73	21	71	100.2	29.6	16	10
13:00	Mostly Cloudy	25 (24.5)	76 (76.1)	E 13	E 8	32	90	78	20	69	100.3	29.6	13	8
12:00	Smoke	25 (24.9)	77 (76.8)	NNW 12	NNW 7	35	95	88	23	73	100.5	29.7	4	3
11:00	Smoke	25 (25.4)	78 (77.7)	NW 12 gusts 35	NW 7 gusts 22	35	95	83	22	72	100.6	29.7	8	5
10:00	Smoke	27 (27.1)	81 (80.8)	SW 24 gusts 36	SW 15 gusts 22	37	99	79	23	74	100.6	29.7	6	4
09:00	Smoke	26 (26.0)	79 (78.8)	SW 26 gusts 36	SW 16 gusts 22	35	95	79	22	72	100.7	29.7	4	3

Legend

n/a: not available

*: value not significant

This table displays weather elements available for this station

Highest temperature

Lowest temperature

Equal temperature values are all highlighted

This is an automated product, generated using preliminary data.

If you require additional historical weather information, please visit Climate website.

Highlighting criteria

Significant Weather Conditions

To highlight potentially dangerous weather conditions the following are displayed in bold characters:

Tornado
Funnel Cloud
Thunderstorm
Lightning
Hail
Freezing precipitation
Heavy precipitation
Any other weather condition, if the visibility is 1.0 km0.6 miles or less

In addition some weather elements are displayed in bold characters when they reach the following values:

Temperatures:

Hot: 30.0°C86°F and higher
Cold: -30.0°C-22°F and lower

Humidex:

Values of 3595 and more

Wind chill

Values of -35-31 and below

Winds:

Mean speed of 60 km/h37 mph or more
Gust speed of 90 km/h56 mph or more

Visibility:

1.0 km0.6 miles or less along with the weather conditions

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