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

Slate River Valley, Ontario

56°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Slate River Valley

Ontario

56°
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
Slate River 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
Today

Hourly

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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

2 AM

55°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 51%
Chevron down
Showers
alerts

Yellow Watch - Severe Thunderstorm

7:00 PM Monday - 5:00 AM Tuesday

WindENE 6 mph

Air QualityExcellent

Wind Gusts14 mph

Humidity100%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Rain0.05 in

Visibility10 mi

Cloud Ceiling5600 ft

3 AM

55°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 47%
Chevron down
Cloudy
alerts

Yellow Watch - Severe Thunderstorm

7:00 PM Monday - 5:00 AM Tuesday

WindENE 6 mph

Air QualityExcellent

Wind Gusts15 mph

Humidity100%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1600 ft

4 AM

55°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 40%
Chevron down
Cloudy
alerts

Yellow Watch - Severe Thunderstorm

7:00 PM Monday - 5:00 AM Tuesday

WindENE 6 mph

Air QualityExcellent

Wind Gusts14 mph

Humidity100%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1500 ft

5 AM

55°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindENE 6 mph

Air QualityExcellent

Wind Gusts15 mph

Humidity100%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1500 ft

6 AM

55°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 34%
Chevron down
Mostly cloudy

RealFeel Shade™54°

WindENE 6 mph

Air QualityExcellent

Max UV Index0.2 (Low)

Wind Gusts13 mph

Humidity100%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover82%

Visibility10 mi

Cloud Ceiling1500 ft

7 AM

55°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 22%
Chevron down
Intermittent clouds

RealFeel Shade™55°

WindESE 5 mph

Air QualityExcellent

Max UV Index0.7 (Low)

Wind Gusts13 mph

Humidity100%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover64%

Visibility10 mi

Cloud Ceiling1500 ft

8 AM

58°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

RealFeel Shade™57°

WindSE 5 mph

Air QualityExcellent

Max UV Index1.8 (Low)

Wind Gusts12 mph

Humidity99%

Indoor Humidity68% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

62°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

RealFeel Shade™62°

WindSSE 5 mph

Air QualityExcellent

Max UV Index2.7 (Moderate)

Wind Gusts10 mph

Humidity96%

Indoor Humidity77% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

66°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

RealFeel Shade™66°

WindSSE 5 mph

Air QualityExcellent

Max UV Index3.6 (Moderate)

Wind Gusts12 mph

Humidity98%

Indoor Humidity90% (Humid)

Dew Point65° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

71°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

RealFeel Shade™72°

WindSSE 5 mph

Air QualityExcellent

Max UV Index5.0 (Moderate)

Wind Gusts12 mph

Humidity87%

Indoor Humidity87% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

75°
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 0%
Chevron down
Mostly cloudy
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™75°

WindSSE 7 mph

Air QualityFair

Max UV Index6.3 (High)

Wind Gusts16 mph

Humidity76%

Indoor Humidity76% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

79°
RealFeel® 86°
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 0%
Chevron down
Mostly cloudy
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™79°

Heat Index80°

WindSSE 9 mph

Air QualityFair

Max UV Index6.9 (High)

Wind Gusts18 mph

Humidity66%

Indoor Humidity66% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

83°
RealFeel® 88°
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 0%
Chevron down
Mostly cloudy
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™82°

Heat Index85°

WindSSE 10 mph

Air QualityFair

Max UV Index6.3 (High)

Wind Gusts21 mph

Humidity58%

Indoor Humidity58% (Humid)

Dew Point66° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

86°
RealFeel® 90°
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 0%
Chevron down
Mostly cloudy
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™85°

Heat Index88°

WindSSE 10 mph

Air QualityFair

Max UV Index5.0 (Moderate)

Wind Gusts23 mph

Humidity50%

Indoor Humidity50% (Humid)

Dew Point66° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

85°
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 0%
Chevron down
Mostly cloudy
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™83°

Heat Index87°

WindS 12 mph

Air QualityFair

Max UV Index3.6 (Moderate)

Wind Gusts25 mph

Humidity52%

Indoor Humidity52% (Humid)

Dew Point66° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

84°
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 0%
Chevron down
Mostly cloudy
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™82°

Heat Index85°

WindS 12 mph

Air QualityFair

Max UV Index2.7 (Moderate)

Wind Gusts28 mph

Humidity52%

Indoor Humidity52% (Humid)

Dew Point65° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

83°
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 0%
Chevron down
Mostly cloudy
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™81°

Heat Index84°

WindS 12 mph

Air QualityFair

Max UV Index1.8 (Low)

Wind Gusts24 mph

Humidity51%

Indoor Humidity51% (Humid)

Dew Point64° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

81°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™79°

Heat Index83°

WindS 10 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts22 mph

Humidity53%

Indoor Humidity53% (Humid)

Dew Point63° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

79°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™77°

WindS 10 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts20 mph

Humidity57%

Indoor Humidity57% (Humid)

Dew Point63° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

76°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™73°

WindS 9 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts17 mph

Humidity61%

Indoor Humidity61% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

72°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

RealFeel Shade™70°

WindS 7 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts16 mph

Humidity66%

Indoor Humidity66% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

69°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear
alerts

Yellow Warning - Heat

12:00 PM Tuesday - 12:00 AM Saturday

WindNNE 6 mph

Air QualityFair

Wind Gusts15 mph

Humidity72%

Indoor Humidity72% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Slate River Valley

AccuWeather's hourly forecast for Slate River Valley provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 55° with a RealFeel® of 51°, showers with a 51% 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

Weather Forecasts

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

11 hours ago

Astronomy

Strawberry moon: How to see the 1st full moon of summer

18 hours ago

Severe Weather

Heat dome to fuel 'ring of fire' severe thunderstorms

10 hours ago
Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Heat wave to impact several key World Cup games

11 hours ago

Weather Forecasts

Fourth of July weather forecast: Heat, storms and smoke ahead

10 hours ago

 More Stories

Featured Stories

Weather News

European heat wave death toll climbs, high temperatures continue

10 hours ago

Weather News

Venezuela death toll surges as crews search after earthquakes

1 day ago

Recreation

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

14 hours ago

Weather News

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

1 day ago

Recreation

Snake hunters compete for $25,000 wrangling pythons in Florida

4 days ago
World North America Canada Ontario Slate River Valley

Weather Near Slate River Valley:

  • Duluth, MN
  • Superior, WI
  • Thunder Bay, 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

...

...

...