Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™

Ottawa, Ontario

87°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Ottawa

Ontario

87°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Ottawa, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today

Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

3 PM

90°
RealFeel® 101°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 61%
Chevron down
Thunderstorms
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

11:24 AM Wednesday - 4:00 AM Monday
alerts

Yellow Watch - Severe Thunderstorm

1:19 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™97°

Heat Index104°

WindSW 12 mph

Air QualityFair

Max UV Index3.6 (Moderate)

Wind Gusts18 mph

Humidity69%

Indoor Humidity69% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover91%

Rain0.01 in

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

90°
RealFeel® 101°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 49%
Chevron down
Intermittent clouds
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

11:24 AM Wednesday - 4:00 AM Monday
alerts

Yellow Watch - Severe Thunderstorm

1:19 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™96°

Heat Index102°

WindSW 12 mph

Air QualityFair

Max UV Index4.0 (Moderate)

Wind Gusts18 mph

Humidity66%

Indoor Humidity66% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

88°
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

11:24 AM Wednesday - 4:00 AM Monday
alerts

Yellow Watch - Severe Thunderstorm

1:19 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™94°

Heat Index99°

WindSW 12 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts20 mph

Humidity68%

Indoor Humidity68% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling4000 ft

6 PM

85°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 49%
Chevron down
Intermittent clouds
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

11:24 AM Wednesday - 4:00 AM Monday
alerts

Yellow Watch - Severe Thunderstorm

1:19 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™91°

Heat Index93°

WindSW 10 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts18 mph

Humidity69%

Indoor Humidity69% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

83°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 55%
Chevron down
Mostly cloudy w/ t-storms
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

11:24 AM Wednesday - 4:00 AM Monday
alerts

Yellow Watch - Severe Thunderstorm

1:19 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™89°

Heat Index92°

WindSW 9 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts16 mph

Humidity83%

Indoor Humidity83% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.10 in

Visibility4 mi

Cloud Ceiling4000 ft

8 PM

82°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 51%
Chevron down
Partly sunny w/ t-storms
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

11:24 AM Wednesday - 4:00 AM Monday
alerts

Yellow Watch - Severe Thunderstorm

1:19 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™87°

Heat Index88°

WindSSW 8 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts14 mph

Humidity82%

Indoor Humidity82% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover11%

Rain0.04 in

Visibility6 mi

Cloud Ceiling30000 ft

9 PM

79°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 47%
Chevron down
Mostly clear
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

11:24 AM Wednesday - 4:00 AM Monday
alerts

Yellow Watch - Severe Thunderstorm

1:19 PM Wednesday - 12:00 AM Thursday

Heat Index83°

WindSSW 7 mph

Air QualityFair

Wind Gusts14 mph

Humidity88%

Indoor Humidity88% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

77°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 40%
Chevron down
Mostly clear
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

11:24 AM Wednesday - 4:00 AM Monday
alerts

Yellow Watch - Severe Thunderstorm

1:19 PM Wednesday - 12:00 AM Thursday

WindSW 7 mph

Air QualityExcellent

Wind Gusts15 mph

Humidity91%

Indoor Humidity91% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

77°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 34%
Chevron down
Mostly clear
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

12:00 PM Wednesday - 4:00 AM Monday
alerts

Orange Warning - Heat

11:24 AM Wednesday - 4:00 AM Monday
alerts

Yellow Watch - Severe Thunderstorm

1:19 PM Wednesday - 12:00 AM Thursday

WindSW 7 mph

Air QualityExcellent

Wind Gusts15 mph

Humidity91%

Indoor Humidity91% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Ottawa

AccuWeather's hourly forecast for Ottawa provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 90° with a RealFeel® of 101°, thunderstorms with a 61% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Friday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Fourth of July week furnace: Dangerous heat dome for 250 million

51 minutes ago

Severe Weather

Thunderstorms to circle massive heat furnace into Fourth of July

1 hour ago

Astronomy

A viral sunset and dueling meteor showers are coming in July

23 hours ago
Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Heat forces officials to change Fan Fest hours in Philadelphia

4 hours ago

Weather Forecasts

Extreme heat, storms and wildfires highlight July 4 weather hazards

1 hour ago

 More Stories

Featured Stories

Astronomy

Asteroid Day marks 1908 impact as scientists ready for new discoveries

1 day ago

Weather News

Chicks fly from nest of famous California eagles Jackie and Shadow

1 day ago

Weather News

Venezuela death toll surges as crews search after earthquakes

3 days ago

Recreation

12-year-old injured by bison in Yellowstone National Park

2 days ago

Weather News

At least 4 dead in Kentucky floods with more rainfall on the way

3 days ago
World North America Canada Ontario Ottawa

Weather Near Ottawa:

  • Gatineau, Quebec
  • Laval, Quebec
  • Montreal, Quebec
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...