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

The Nation, Ontario

66°F
Location Chevron down
Location News Videos
Use Current Location
Recent

The Nation

Ontario

66°
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.
Let's Go Chevron right
Have an account already? Log In
settings
Help
The Nation, 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

May

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
26
66°
31°
27
74°
33°
28
73°
41°
29
60°
51°
30
51°
42°
1
54°
32°
2
50°
34°
3
56°
37°
4
68°
43°
5
Rain and drizzle
69°
41°
6
Cloudy and cooler
54°
36°
7
A shower; breezy in the a.m.
57°
35°
8
Breezy with showers around
55°
38°
9
A couple of morning showers
58°
42°
10
Occasional rain
57°
40°
11
Times of clouds and sun
60°
39°
12
A stray morning shower
62°
35°
13
Cloudy
63°
51°
14
A few showers in the morning
66°
46°
15
Cloudy, a little rain; warmer
76°
56°
16
A bit of morning rain
75°
57°
17
Mainly cloudy, a little rain
74°
58°
18
Rain
72°
56°
19
Sun, then clouds
64°
46°
20
Clouds yielding to sun
67°
50°
21
Times of clouds and sun
69°
50°
22
Rain in the afternoon
68°
51°
23
Cloudy with showers around
62°
42°
24
A little afternoon rain
60°
42°
25
Cloudy
60°
42°
26
Rain becoming steadier
62°
46°
27
A little afternoon rain
63°
43°
28
Mostly cloudy
62°
43°
29
Turning cloudy
62°
44°
30
Considerable cloudiness
64°
46°
31
A bit of morning rain
65°
52°
1
Sunny to partly cloudy
65°
47°
2
Mostly sunny
66°
46°
3
A little morning rain; cloudy
68°
52°
4
Partly sunny
68°
49°
5
Decreasing clouds
67°
53°
6
Times of sun and clouds
75°
55°

Temperature Graph

°F
80° 70° 60° 50° 40° May
Today 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

May Weather in The Nation

The Nation's May 2026 forecast shows daily high temperatures ranging from 54° to 76°, with overnight lows between 35° and 58°. The average high for May is 65° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in The Nation. See also: June | July | August.

Further Ahead

June 2026

July 2026

August 2026

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Late-season snowstorm to snarl travel in Denver, Rockies

2 hours ago

Recreation

Bear attack injures 2 hikers in Yellowstone National Park

3 hours ago

Severe Weather

Severe storms to rattle central, eastern US in first full week of May

31 minutes ago

Astronomy

Halley's comet fuels Eta Aquarids lighting up the sky this week

2 hours ago

Weather Forecasts

From 80s to frost: Temperature rollercoaster in Northeast, Midwest

3 hours ago

More Stories

Featured Stories

Weather News

Lightning may have sparked fire that destroyed Florida marine lab

21 hours ago

Recreation

2nd rescued sloth dies from closed Orlando attraction

2 hours ago

Health

Melanoma survivor’s story underscores importance of early checks

1 day ago

Weather News

Massive sea lion 'Chonkers' drawing crowds in San Francisco

1 day ago

Weather News

Residents flee ash after Mayon Volcano erupts in the Philippines

1 day ago

World North America Canada Ontario The Nation

Weather Near The Nation:

  • Laval, Quebec
  • Montreal, Quebec
  • Ottawa, 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

...

...

...