Residents of Welwyn Garden City are set to enjoy a brief period of warm, sunny weather this week before temperatures drop significantly for the weekend. According to the Met Office, Wednesday, 8 April 2026, will be the warmest day, with temperatures reaching 23°C.
This unusually warm spell for early April could mark the highest temperatures seen at this time of year since 2020. While Wednesday will remain largely calm, conditions will change on Thursday, 9 April, as strong wind gusts reaching 31mph are expected. By Friday, temperatures are set to fall by approximately 10°C, with the rest of the weekend expected to remain cooler at around 12°C to 13°C.
Health officials advise that while the sun will be out, ultraviolet levels are at a moderate rating, meaning residents should consider using sunscreen if spending time outdoors. Additionally, those who suffer from hay fever should be aware that pollen levels across the region are forecast to be very high throughout the week. This includes high concentrations of birch, ash, and plane pollen.
Following the clear conditions earlier in the week, the weather is expected to become more unsettled by the weekend. Showers are forecast to return on Sunday, 12 April, with a 30% chance of rain by 1pm, which may increase to 50% throughout the afternoon.
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