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Hourly Forecast - Orillia

HEAT WARNING

A prolonged heat event will begin on Monday. Dangerously hot and humid conditions are expected through most of the week. Daytime highs on Monday through much of the week are expected to be 30 to 35 degrees Celsius with humidex values of 40 to 45. There will be little relief through the overnight as lows are expected to be 18 to 23 degrees Celsius with humidex values of 26 to 30. Temperatures and humidex values may be several degrees cooler near the shores of the Great Lakes. Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high risk category. Extreme heat can affect everyone's health. The health risks are greater for older adults, infants and young children, pregnant people, people with physical and/or mental illnesses, and people with disabilities or mobility issues. Never leave people, particularly children, or pets inside a parked vehicle. Watch for the effects of heat illness: swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions. Heat stroke is a medical emergency! Call 911 or your local emergency number immediately if you or someone you are caring for has a high body temperature and are confused, has stopped sweating or becomes unconscious. While waiting for help, cool the person right away: move them to a cool place, apply cold water to large areas of the skin and fan the person as much as possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.

In effect for:
  • Barrie - Orillia - Midland
Date/Time
(EDT)
Temp.
(°C)
Weather ConditionsLikelihood of precip (%) Wind
(km/h)
Humidex
17 June 2024
03:00 15 A few showers. Risk of thunderstorms

A few showers. Risk of thunderstorms

80SE 20
*
04:00 15 A few showers. Risk of thunderstorms

A few showers. Risk of thunderstorms

80SE 20
*
05:00 15 A few showers. Risk of thunderstorms

A few showers. Risk of thunderstorms

80SE 15
*
06:00 17 Chance of showers. Risk of thunderstorms

Chance of showers. Risk of thunderstorms

40SE 15
*
07:00 19 Chance of showers. Risk of thunderstorms

Chance of showers. Risk of thunderstorms

40SE 15
*
08:00 21 A mix of sun and cloud

A mix of sun and cloud

10S 15
26
09:00 21 A mix of sun and cloud

A mix of sun and cloud

10S 15
27
10:00 22 A mix of sun and cloud

A mix of sun and cloud

10S 15
28
11:00 22 A mix of sun and cloud

A mix of sun and cloud

10SW 15
29
12:00 24 A mix of sun and cloud

A mix of sun and cloud

10SW 15
31
13:00 27 A mix of sun and cloud

A mix of sun and cloud

10SW 15
35
14:00 29 A mix of sun and cloud

A mix of sun and cloud

10W 15
37
15:00 30 Chance of showers. Risk of thunderstorms

Chance of showers. Risk of thunderstorms

40W 15
38
16:00 31 Chance of showers. Risk of thunderstorms

Chance of showers. Risk of thunderstorms

40W 15
39
17:00 32 Chance of showers. Risk of thunderstorms

Chance of showers. Risk of thunderstorms

40S 10
40
18:00 31 Chance of showers. Risk of thunderstorms

Chance of showers. Risk of thunderstorms

40S 10
39
19:00 29 Chance of showers. Risk of thunderstorms

Chance of showers. Risk of thunderstorms

40S 10
38
20:00 28 Chance of showers. Risk of thunderstorms

Chance of showers. Risk of thunderstorms

40S 15
37
21:00 26 Partly cloudy

Partly cloudy

10S 15
34
22:00 25 Partly cloudy

Partly cloudy

10S 15
33
23:00 23 Partly cloudy

Partly cloudy

10S 15
30
18 June 2024
00:00 22 Partly cloudy

Partly cloudy

10S 15
29
01:00 20 Partly cloudy

Partly cloudy

10S 15
26
02:00 19 Partly cloudy

Partly cloudy

10S 15
*

* Value not significant

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