Weather Forecast for Ottawa

Ontario, Canada

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Sunny

Current Weather - Ottawa: 23°C

Ontario, Canada

Sunny

Feels like 25°C

Wind

8 km/h W

Humidity

83%

Pressure

1013 mb

UV Index

3

Visibility

24 km

Sunny

Sunny

Friday, July 03, 2026

High

30°C

Low

20°C

Rain Chance

41%

Hourly Forecast

Patchy rain nearby 26°C
15:00
Sunny 29°C
16:00
Sunny 30°C
17:00
Patchy rain nearby 23°C
18:00
Patchy rain nearby 24°C
19:00
Sunny 23°C
20:00
Clear 21°C
21:00
Clear 21°C
22:00
Clear 20°C
23:00
Jul 04

Day Statistics

Maximum Wind

11 km/h

Humidity

82%

Precipitation

1 mm

UV Index

9

Visibility

9 km

Rain Chance

41%

Snow Chance

0%

Sun & Moon

Sunrise

05:19 AM

Sunset

08:54 PM

Moonrise

11:12 PM

Moonset

09:00 AM

Moon Phase

Waning Gibbous

Moon Illumination

79%

Air Quality

PM2.5

9.3

μg/m³

PM10

10.2

μg/m³

NO₂

3

μg/m³

O₃

77.8

μg/m³

SO₂

1

μg/m³

CO

157.3

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

435.48

Diffuse Radiation

84.06

DNI

0

GTI

0

Weather Alerts

yellow warning - heat - in effect

Gatineau Jul 2, 08:25 PM - Jul 3, 12:25 PM
Severity: Moderate Urgency: Future

A prolonged heat event continues. What: Maximum temperatures of 32 degrees Celsius. Minimum temperatures of near 20 degrees Celsius. When: Continuing into Friday. Additional Information: The hottest conditions are expected to continue through today, with maximum temperatures potentially reaching 32 degrees Celsius. Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high-risk category. ### Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion. For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html 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 X using #QCStorm.

Take action to protect yourself and others – extreme heat can affect everyone’s health. Determine if you or others around you are at greater risk of heat illness. Check on older adults, those living alone and other at-risk people in-person or on the phone multiple times a day. Watch for the early signs of heat exhaustion in yourself and others. Signs may include headache, nausea, dizziness, thirst, dark urine and intense fatigue. Stop your activity and drink water. Heat stroke is a medical emergency! Call 9-1-1 or your emergency health provider if you, or someone around you, is showing signs of heat stroke which can include red and hot skin, dizziness, nausea, confusion and change in consciousness. While you wait for medical attention, try to cool the person by moving them to a cool place, removing extra clothing, applying cold water or ice packs around the body. Drink water often and before you feel thirsty to replace fluids. Close blinds, or shades and open windows if outside is cooler than inside. Turn on air conditioning, use a fan, or move to a cooler area of your living space. If your living space is hot, move to a cool public space such as a cooling centre, community centre, library or shaded park. Follow the advice of your region’s public health authority. Plan and schedule outdoor activities during the coolest parts of the day. Limit direct exposure to the sun and heat. Wear lightweight, light-coloured, loose-fitting clothing and a wide-brimmed hat. Never leave people, especially children, or pets inside a parked vehicle. Check the vehicle before locking to make sure no one is left behind.

Event: heat Certainty: Likely Category: Met