5-day weather forecast Niagara Falls 14-08-2026

Weather forecast Niagara Falls tomorrow 14.08.2026: sunny, temperature from 18 °C to 26 °C.

Precipitation probability 10%. Wind up to 4.39 m/s (gusts 7.39 m/s). Air humidity 41–82%, atmospheric pressure 762–767 mm Hg, UV index up to 7.2.

Weather Alerts

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ModerateAug 12, 12:03 PM — Aug 13, 01:02 AMTranslate with Google

yellow watch - severe thunderstorm - in effect

thunderstorm

Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain. What: Wind gusts near 100 km/h. Toonie sized hail. Heavy rain in excess of 40 mm. When: This afternoon into this evening. Additional Information: The highest rainfall amounts are expected for areas that receive multiple thunderstorms. ### Local utility outages are possible. Fast-moving and rapidly rising water can sweep vehicles away and damage infrastructure. Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on social media using #ONStorm. For more information: https://www.ontario.ca/page/be-prepared-emergency.

When thunder roars, go indoors! Lightning kills and injures Canadians every year. Secure loose objects. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.

SevereAug 12, 12:08 PM — Aug 13, 02:00 AMTranslate with Google

squall watch in effect

squall

Conditions are favourable for the development of squalls with wind gusts up to 45 knots, frequent lightning and hail. Thunderstorms are expected to track east over the lakes this afternoon and evening. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway.

5 days at a glance — tap a day to open it

Sunrise 06:20
Sunset 20:20

Waxing Crescent5% illuminated
Moonrise 08:22 · Moonset 21:12

Chart

Table

← Thu, Aug 13

Fri, Aug 14, 2026

Sat, Aug 15 →

Forecast from 18 °C to 26 °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)	20	20	19	19	18	18	18	18	19	21	22	24	25	25	26	26	26	24	25	24	22	20	19	18
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.01	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 (%)	6	4	6	9	9	8	6	6	5	4	6	6	7	10	19	20	26	20	19	83	12	11	8	7
Rain chance (%)	6	6	7	8	9	9	9	9	7	5	4	3	2	2	2	2	2	3	2	9	4	8	9	10

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)	2.11	1.89	1.19	1.31	1	0.81	0.81	0.81	0.89	1.19	1.89	1.61	2.39	2.81	2.89	2.39	3.89	3.11	2.69	4	4.39	4.19	4	3.39
Wind gust (m/s)	4.28	3.83	2.39	2.58	1.94	1.53	1.53	1.47	1.36	1.5	2.22	1.83	2.75	3.22	3.42	2.94	5.17	4.44	3.83	6.33	7.39	7.19	7.03	6.14
Wind direction (°)	NNW 346°	N 356°	N 351°	NW 317°	NW 320°	NW 316°	W 274°	W 265°	W 272°	WNW 297°	NW 317°	WNW 283°	WNW 293°	WNW 292°	WNW 301°	NW 306°	NNW 336°	N 358°	NNW 329°	NNW 334°	NNE 27°	ENE 63°	ENE 78°	E 89°

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 (%)	69	71	74	76	77	78	79	79	73	66	61	56	51	47	45	41	45	52	46	50	62	74	78	82

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)	762	762	763	763	764	764	764	764	764	764	765	765	765	764	764	764	764	764	765	765	766	767	767	767

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	0.6	1.6	3.2	5	6.4	7.2	7	5.7	4.1	2.3	1.1	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)	13	13.7	12.3	10.1	8.6	7.4	6.4	6	5.3	4.1	3.5	3.7	4.2	4.9	6.1	6.8	6.7	6	5.6	5	4.7	4.8	4.7	4.6
PM10 (µg/m³)	13	13.7	12.3	10.1	8.6	7.4	6.4	6.1	5.4	4.1	3.5	3.8	4.2	4.9	6.1	6.8	6.7	6.1	5.7	5.1	4.8	4.8	4.7	4.6
Ozone (O₃) (µg/m³)	35	30	28	31	36	41	44	46	51	60	72	84	97	110	120	126	128	126	118	105	94	85	77	70
NO₂ (µg/m³)	36.6	36.4	35.1	31.5	26.6	22.4	19.9	18.1	15.9	12.8	9.3	6.5	4.7	3.5	2.7	2.3	2.4	2.9	4	5.4	6.6	7.3	7.7	7.9
SO₂ (µg/m³)	6.9	7	7	6.8	6.5	6.1	5.8	5.4	5.1	4.8	4.5	4.2	3.9	3.6	3.4	3.3	3.3	3.1	2.7	2.1	1.6	1.4	1.2	1.1
CO (µg/m³)	336	252	190	175	182	190	194	199	197	182	161	145	139	138	137	128	119	128	173	237	279	280	260	243

← Thu, Aug 13

Fri, Aug 14, 2026

Sat, Aug 15 →

Niagara Falls 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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