Live Weather & Forecast
Weather in Harrow
Middlesex, United Kingdom · Real-time conditions & 3-day outlook
11°C
Feels like 9°C
52°F / Feels 48°F
Overcast
Harrow, Middlesex
🌙 Nighttime
Updated: 2026-04-16 06:00
Humidity
82%
Wind
18.4 km/h SW
Wind Gust
27.1 km/h
Pressure
1017 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
7.6°C
Wind Degree
225°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
153.9 μg/m³
NO₂
8.8 μg/m³
O₃
65 μg/m³
SO₂
1.8 μg/m³
PM 2.5
7.8 μg/m³
PM 10
16 μg/m³
Today's Hourly Forecast
24-hour breakdown for Harrow, Middlesex
12 AM
10°
Partly Cloudy
1 AM
10°
Partly Cloudy
2 AM
10°
Partly Cloudy
3 AM
9°
Partly Cloudy
4 AM
10°
Cloudy
5 AM
10°
Overcast
6 AM
11°
Overcast
7 AM
11°
Overcast
8 AM
11°
Overcast
9 AM
11°
Overcast
10 AM
13°
Patchy rain nearby
11 AM
13°
Patchy rain nearby
12 PM
15°
Patchy rain nearby
1 PM
15°
Patchy rain nearby
2 PM
15°
Patchy rain nearby
3 PM
15°
Patchy rain nearby
4 PM
15°
Patchy rain nearby
5 PM
15°
Patchy rain nearby
6 PM
14°
Overcast
7 PM
13°
Cloudy
8 PM
12°
Overcast
9 PM
11°
Overcast
10 PM
11°
Cloudy
11 PM
11°
Clear
3-Day Forecast
Daily overview for Harrow, Middlesex
Today
Patchy rain nearby
15°
/
9°
🌧️ 89% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 19.1 km/h
🌧️ Total precip: 0.37 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:03 AM
🌇 Sunset: 08:00 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Patchy rain nearby
16°
/
9°
🌧️ 88% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 21.2 km/h
🌧️ Total precip: 0.36 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:01 AM
🌇 Sunset: 08:01 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Patchy rain nearby
15°
/
8°
🌧️ 78% chance of rain
💧 Avg. humidity: 70%
💨 Max wind: 18.7 km/h
🌧️ Total precip: 0.11 mm
☀️ UV Index: 1.1
🌅 Sunrise: 05:59 AM
🌇 Sunset: 08:03 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Best Time to Visit Harrow
Plan your trip to Harrow, United Kingdom around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Harrow?
Current conditions in Harrow: Overcast, temperature 11°C, humidity 82%.
What is the best time to visit Harrow?
The best time to visit Harrow is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Harrow?
Harrow is located at approximately 51.6° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Harrow?
The wettest period in Harrow is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Harrow?
For visits to Harrow during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Harrow in?
Harrow is located in United Kingdom, in the state of Middlesex.
What are the public holidays in Harrow in 2026?
View the 2026 public holidays for Harrow on our Holidays page.
What are the GPS coordinates used for the weather forecast in Harrow?
The weather forecast for Harrow uses coordinates 51.5968, -0.3373.