This year pollen levels could be the highest in 50 years because the season is so late that all the different species are due to flower at the same time.
The Midlands is one of the worst areas because we are landlocked, so the wind can blow the pollen into the area from all directions.
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After a rather cloudy start, the cloud will break up leaving a breezy day with sunny spells and scattered showers.
Sunny spells and scattered showers will develop during the morning. Some of these will become heavy and thundery after midday.