Hertfordshire

Cloudy Week With Sunny Spells Expected in Welwyn Garden City

By

Karen McGinn
4 May 2026, 10:46 am

Residents in Welwyn Garden City can expect a mixed week of weather, with predominantly cloudy conditions and temperatures peaking at 18°C by the weekend. According to the Met Office, while the week will be largely overcast, low pollen levels and good air quality offer favourable conditions for outdoor exercise.

Monday 4 May begins as an overcast day with a high of 17°C and a 30 per cent chance of light rain at 9am. Winds will be relatively calm, with gusts reaching up to 18mph. Mid-week will bring a change in conditions, as Wednesday 6 May is expected to be the coldest day of the week, with temperatures dropping to 13°C during the day and falling to 2°C overnight, accompanied by wind gusts of up to 24mph.

Those planning outdoor activities should take note of Thursday 7 May, which is set to see high levels of ultraviolet radiation. The official advice for this day is to seek shade during the middle of the day, wear appropriate clothing, and apply sunscreen.

The week concludes with warmer, though unsettled, conditions. Saturday 9 May is expected to be the warmest day, reaching 18°C, while Sunday 10 May will see temperatures around 17°C. Both days remain cloudy with a 30 to 40 per cent chance of rain throughout the weekend, and Sunday will see a return of wind gusts up to 24mph.

Throughout the working week, Department for Environment, Food & Rural Affairs data indicates that air quality will remain good, helping to ensure that the generally overcast weather—which typically occurs about 54 per cent of the time in the area during May—does not discourage outdoor plans.

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