Hourly Forecast - Blenheim (Kent)

YELLOW WATCH - SEVERE THUNDERSTORM

1:39 PM EDT Monday 27 July 2026

Impact Level: Moderate

Forecast Confidence: High

Conditions are favourable for the development of dangerous thunderstorms that may be capable of producing damaging wind gusts, large hail and torrential rain. Hazards: Winds gusts of 90 to 110 km/h. Local rainfall amounts exceeding 50 mm. Quarter to ping pong ball sized hail. When: This afternoon through the evening. Additional information: Thunderstorms over Lake Huron will continue to move southeastwards and affect the area this afternoon and evening. Rainfall amounts may exceed 50 mm for locations that receive multiple thunderstorms. Local utility outages are possible. Damage to roofs, fences, branches or soft shelters is possible. When thunder roars, go indoors! Lightning kills and injures Canadians every year. Don't drive through flooded roadways. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches. Heavy rain can cause flash flooding and significant reductions to visibility. Large hail can cause significant damage and injury. 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: ontario.ca/page/be-prepared-emergency.

In effect for:

Chatham-Kent - Rondeau Park

Date/Time (EDT)	Temp. (°C)	Weather Conditions	Likelihood of precip (%)	UV index	Wind (km/h)	Humidex
27 July 2026
15:00	30	Chance of showers. Risk of thunderstorms	60	5	W 20	39
16:00	30	Chance of showers. Risk of thunderstorms	60	3	W 20	38
17:00	30	A few showers or thunderstorms	80	1	W 30	38
18:00	29	A few showers or thunderstorms	80	*	W 30	37
19:00	28	A few showers or thunderstorms	80	*	W 30	36
20:00	27	A few showers or thunderstorms	80	*	W 30	35
21:00	25	Chance of showers. Risk of thunderstorms	70	*	W 30	33
22:00	23	Chance of showers. Risk of thunderstorms	70	*	W 30	31
23:00	21	Chance of showers. Risk of thunderstorms	70	*	W 30	29
28 July 2026
00:00	20	Chance of showers. Risk of thunderstorms	70	*	W 30	28
01:00	20	Chance of showers. Risk of thunderstorms	70	*	W 30	27
02:00	19	Chance of showers. Risk of thunderstorms	70	*	W 10	*
03:00	19	Chance of showers. Risk of thunderstorms	70	*	W 10	*
04:00	19	Chance of showers. Risk of thunderstorms	70	*	W 10	*
05:00	19	Chance of showers. Risk of thunderstorms	70	*	W 10	*
06:00	19	Chance of showers. Risk of thunderstorms	40	*	W 10	*
07:00	19	Chance of showers. Risk of thunderstorms	40	*	W 10	*
08:00	19	Chance of showers. Risk of thunderstorms	40	1	NW 15	*
09:00	20	Chance of showers. Risk of thunderstorms	40	2	NW 15	26
10:00	21	Chance of showers. Risk of thunderstorms	40	4	NW 15	27
11:00	22	Chance of showers. Risk of thunderstorms	40	5	N 40 gusts 60	28
12:00	23	Chance of showers. Risk of thunderstorms	40	6	N 40 gusts 60	29
13:00	24	Chance of showers. Risk of thunderstorms	40	6	N 40 gusts 60	31
14:00	25	Chance of showers. Risk of thunderstorms	40	5	N 40 gusts 60	32

* Value not significant

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