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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Outbreaks of rain will move southwards turning clearer and colder.
Heavy showers with a chance of thunder but clearing this evening with clear spells overnight.
Showers are likely to break out which could turn heavy during the afternoon.