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

St Mellons, Cardiff

75°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St Mellons

Cardiff

75°
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
St Mellons, Cardiff 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
Today

Hourly

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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

4 PM

73°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

RealFeel Shade™70°

WindW 14 mph

Air QualityExcellent

Max UV Index4.4 (Moderate)

Wind Gusts23 mph

Humidity59%

Indoor Humidity59% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover53%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

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

RealFeel Shade™69°

WindW 13 mph

Air QualityExcellent

Max UV Index3.1 (Moderate)

Wind Gusts23 mph

Humidity62%

Indoor Humidity62% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover63%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

71°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

RealFeel Shade™67°

WindW 12 mph

Air QualityExcellent

Max UV Index1.9 (Low)

Wind Gusts22 mph

Humidity65%

Indoor Humidity65% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover72%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

69°
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™66°

WindW 10 mph

Air QualityExcellent

Max UV Index1.0 (Low)

Wind Gusts21 mph

Humidity71%

Indoor Humidity71% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover82%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

68°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

RealFeel Shade™65°

WindW 9 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts21 mph

Humidity74%

Indoor Humidity73% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover84%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

65°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

RealFeel Shade™63°

WindW 8 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts20 mph

Humidity82%

Indoor Humidity73% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover85%

Visibility10 mi

Cloud Ceiling24700 ft

10 PM

62°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindW 8 mph

Air QualityFair

Wind Gusts18 mph

Humidity88%

Indoor Humidity72% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover86%

Visibility10 mi

Cloud Ceiling24700 ft

11 PM

60°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindW 8 mph

Air QualityExcellent

Wind Gusts18 mph

Humidity95%

Indoor Humidity72% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover87%

Visibility10 mi

Cloud Ceiling24700 ft

Hourly Weather Forecast for St Mellons

AccuWeather's hourly forecast for St Mellons provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 73° with a RealFeel® of 74°, intermittent clouds with a 0% 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

Wednesday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Top Stories

Weather Forecasts

Extreme heat to shift west into mid-July prior to return of monsoon

1 hour ago

Lightning flashes behind Pennsylvania fireworks

1 day ago 0:08

Severe Weather

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

1 hour ago
Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Storms delay Mexico vs. England showdown in Mexico City

21 minutes ago

Health

CDC: 125 ill in Princess cruise ship norovirus outbreak

2 days ago

 More Stories

Featured Stories

Weather News

Texas Hill Country marks 1 year since deadly July 4 flood

2 days ago

Weather News

What is the most American animal?

3 days ago

Weather News

Chicks fly from nest of famous California eagles Jackie and Shadow

5 days ago

Astronomy

A viral sunset and dueling meteor showers are coming in July

5 days ago

Recreation

Girl survives rabid bat attack after receiving lifesaving treatment

3 days ago
World Europe United Kingdom Cardiff St Mellons

Weather Near St Mellons:

  • Bristol, City of Bristol
  • Cardiff, Cardiff
  • Swansea, Swansea
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
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
© 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

...

...

...