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Environment
Weather Forecast
Welwyn, Hertfordshire
AL6 9SN North Hertfordshire District
Stay updated with the latest weather.
Real-time weather conditions, including temperature, precipitation, and air quality with our detailed weather tracking page.
21 June 2025
The Weather Today
Good morning! A rather mild day ahead for the South East. Skies will be mostly overcast with patchy drizzle here and there. As we move through the afternoon, expect the cloud cover to break a little, allowing for some brighter spells to peek through. Temperatures will be hovering around the 14 to 16 degrees mark
Winds will be generally light, coming in from the southwest. A gentle reminder to carry an umbrella if you're heading out, just in case the drizzle decides to be persistent!
. 3-Day Forecast
Looking ahead, the next few days bring a mix of weather. Tomorrow, a brighter start with some sunny intervals in the morning, but clouds will thicken through the day. Highs will be around 15 degrees. On the following day, more settled conditions with largely dry weather, and temperatures should reach about 17 degrees
As we head into the next day, a bit cooler with more robust winds from the northwest, and temperatures dropping slightly to around 12 degrees. With the ever-changing weather, keep those layers handy!
.
The Weather Today
Good morning! A rather mild day ahead for the South East. Skies will be mostly overcast with patchy drizzle here and there. As we move through the afternoon, expect the cloud cover to break a little, allowing for some brighter spells to peek through. Temperatures will be hovering around the 14 to 16 degrees mark
Winds will be generally light, coming in from the southwest. A gentle reminder to carry an umbrella if you're heading out, just in case the drizzle decides to be persistent!
3-Day Forecast
Looking ahead, the next few days bring a mix of weather. Tomorrow, a brighter start with some sunny intervals in the morning, but clouds will thicken through the day. Highs will be around 15 degrees. On the following day, more settled conditions with largely dry weather, and temperatures should reach about 17 degrees
As we head into the next day, a bit cooler with more robust winds from the northwest, and temperatures dropping slightly to around 12 degrees. With the ever-changing weather, keep those layers handy!
7-day Forecast
Air quality in AL6 9SN
What does this mean?
The AQI for postcode AL6 9SN ranges from 0 to 500, indicating air quality levels. A range of 0-50 means good air quality with minimal health concerns, 51-100 is moderate, posing some risk for sensitive individuals, 101-150 is unhealthy for sensitive groups like children and the elderly, 151-200 is unhealthy for all, requiring health warnings and reduced outdoor activities, 201-300 is very unhealthy for everyone, and 301-500 is hazardous, posing serious health risks and advising everyone to stay indoors and avoid outdoor exertion.
