Live Weather & Forecast
Weather in Radlett
Hertfordshire, United Kingdom · Real-time conditions & 3-day outlook
12°C
Feels like 10°C
54°F / Feels 50°F
Partly Cloudy
Radlett, Hertfordshire
🌙 Nighttime
Updated: 2026-04-15 21:30
Humidity
77%
Wind
22.3 km/h SW
Wind Gust
35.5 km/h
Pressure
1015 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
7.5°C
Wind Degree
223°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
140.9 μg/m³
NO₂
10 μg/m³
O₃
76 μg/m³
SO₂
1.6 μg/m³
PM 2.5
6.3 μg/m³
PM 10
9.7 μg/m³
Today's Hourly Forecast
24-hour breakdown for Radlett, Hertfordshire
12 AM
11°
Overcast
1 AM
11°
Overcast
2 AM
11°
Patchy rain nearby
3 AM
11°
Patchy rain nearby
4 AM
11°
Overcast
5 AM
11°
Overcast
6 AM
11°
Patchy rain nearby
7 AM
11°
Patchy rain nearby
8 AM
11°
Patchy rain nearby
9 AM
12°
Patchy rain nearby
10 AM
12°
Overcast
11 AM
13°
Patchy rain nearby
12 PM
13°
Patchy rain nearby
1 PM
14°
Light drizzle
2 PM
15°
Patchy rain nearby
3 PM
17°
Patchy rain nearby
4 PM
15°
Patchy rain nearby
5 PM
14°
Patchy light drizzle
6 PM
14°
Sunny
7 PM
13°
Sunny
8 PM
11°
Partly Cloudy
9 PM
12°
Partly Cloudy
10 PM
9°
Clear
11 PM
9°
Clear
3-Day Forecast
Daily overview for Radlett, Hertfordshire
Today
Patchy rain nearby
17°
/
9°
🌧️ 97% chance of rain
💧 Avg. humidity: 87%
💨 Max wind: 32.4 km/h
🌧️ Total precip: 1.48 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:06 AM
🌇 Sunset: 07:59 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Patchy rain nearby
15°
/
8°
🌧️ 87% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 22 km/h
🌧️ Total precip: 0.42 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:04 AM
🌇 Sunset: 08:00 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Patchy rain nearby
16°
/
8°
🌧️ 86% chance of rain
💧 Avg. humidity: 81%
💨 Max wind: 24.8 km/h
🌧️ Total precip: 0.4 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:01 AM
🌇 Sunset: 08:02 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Radlett
Plan your trip to Radlett, 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 Radlett?
Current conditions in Radlett: Partly Cloudy, temperature 12°C, humidity 77%.
What is the best time to visit Radlett?
The best time to visit Radlett is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Radlett?
Radlett is located at approximately 51.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Radlett?
The wettest period in Radlett is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Radlett?
For visits to Radlett during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Radlett in?
Radlett is located in United Kingdom, in the state of Hertfordshire.
What are the public holidays in Radlett in 2026?
View the 2026 public holidays for Radlett on our Holidays page.
What are the GPS coordinates used for the weather forecast in Radlett?
The weather forecast for Radlett uses coordinates 51.6844, -0.3177.