For Business
|
Warnings
Data Suite
Forensics
Advertising
Superior Accuracy™

Grand Valley, Ontario

Location

Location News Videos

Use Current Location

Recent

Grand Valley

Ontario

No results found.

Try searching for a city, zip code or point of interest.

Create Your Account Unlock extended daily and hourly forecasts — all with your free account.

Have an account already? Log In

settings

Grand Valley, 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

Hourly

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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

3 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.

7%

Mostly sunny

RealFeel Shade™75°

WindE 8 mph

Air QualityFair

Max UV Index7.0 (High)

Wind Gusts13 mph

Humidity61%

Indoor Humidity61% (Humid)

Dew Point63° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover28%

Visibility10 mi

Cloud Ceiling33500 ft

4 PM

78°

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.

7%

Partly sunny

RealFeel Shade™77°

WindE 7 mph

Air QualityFair

Max UV Index4.8 (Moderate)

Wind Gusts13 mph

Humidity63%

Indoor Humidity63% (Humid)

Dew Point65° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

78°

RealFeel® 81°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

7%

Partly sunny

RealFeel Shade™76°

WindESE 7 mph

Air QualityFair

Max UV Index3.4 (Moderate)

Wind Gusts12 mph

Humidity63%

Indoor Humidity63% (Humid)

Dew Point64° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

77°

RealFeel® 79°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

7%

Mostly sunny

RealFeel Shade™75°

WindESE 7 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts12 mph

Humidity65%

Indoor Humidity65% (Humid)

Dew Point64° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover28%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

75°

RealFeel® 76°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

5%

Mostly sunny

RealFeel Shade™74°

WindESE 7 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts12 mph

Humidity68%

Indoor Humidity68% (Humid)

Dew Point64° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

73°

RealFeel® 73°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

RealFeel Shade™73°

WindSE 6 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts10 mph

Humidity72%

Indoor Humidity72% (Humid)

Dew Point64° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover15%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

71°

RealFeel® 70°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

RealFeel Shade™70°

WindSE 6 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts10 mph

Humidity77%

Indoor Humidity77% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

69°

RealFeel® 67°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

WindSSE 5 mph

Air QualityFair

Wind Gusts9 mph

Humidity81%

Indoor Humidity81% (Humid)

Dew Point63° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

66°

RealFeel® 65°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

WindS 5 mph

Air QualityFair

Wind Gusts9 mph

Humidity85%

Indoor Humidity80% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover4%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Grand Valley

AccuWeather's hourly forecast for Grand Valley provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 77° with a RealFeel® of 83°, mostly sunny with a 7% 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

Thursday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Atlantic hurricane season off to a slow start as El Niño strengthens

3 hours ago

Severe Weather

Tornado in Alaska? Video shows rare funnel cloud in remote landscape

2 hours ago

Weather Forecasts

Heat dome to broil western U.S. ahead of North America monsoon

2 hours ago

Live: World Cup 2026 weather updates

LATEST ENTRY

Quarterfinals to commence with heat on Thursday

5 hours ago

Severe Weather

Storms, downpours to persist this week across central, eastern US

2 hours ago

Featured Stories

Severe Weather

Storms, heat and floods disrupt America’s 250th birthday celebrations

23 hours ago

Health

NYC Legionnaires' disease outbreak jumps to 14 confirmed cases

1 day ago

Weather News

Mother dies trying to save son from Tennessee floodwaters

1 day ago

Travel

Plane makes hard landing into New York’s East River, officials say

1 day ago

Weather News

Toll from Venezuela earthquakes rises to 3,342, more than 16K injured

20 hours ago

World North America Canada Ontario Grand Valley

Weather Near Grand Valley:

Brampton, Ontario
Mississauga Valley, Ontario
Toronto, Ontario

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

...

...

...