University of Worcester's pollen forecast and fungal spore forecast for the UK.
Weekly pollen and fungal spore forecast summary
Forecast to 4th July 2025: Pollen: Grass and nettle at high risk; Spores: High. Please note that this forecast is now only for the West Midlands Region, although similar patterns are likely across many UK regions.
Grass Pollen Count - High
Grass pollen will be at high risk during warm, dry weather. Many of the main season grass species are over now in this region.
Tree Pollen Count - Low
Very low tree pollen.
Fungal Spore Levels - High
Alternaria at a high risk during warm, dry weather. Didymella and several other spore types that peak during warm, humid nights will continue to increase. Cladosporium at a high risk during warm, dry weather. Any rain or showers will allow Leptosphaeria and allies to increase to high temporarily.
Weed Pollen Count - High
Peak season. Nettle pollen is reducing, higher risk during warm, dry weather.
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