We supply and produce the pollen forecast for the UK in conjunction with the Met Office.

Weekly pollen forecast and summary

Forecast for 3rd to 9th June 2023:  Pollen: grass pollen high risk, moderate weed pollen. Spores: Cladosporium rising to high risk.

Grass Pollen Count - High 

 Pollen forecast for grass with a high orange pollen count.

Grass pollen will reach a high risk during good weather in many regions, eventually rising to high in Scotland and Northern Ireland too. However, Eastern coastal areas will have a low risk while cool winds persist from the East or North-East.

Tree Pollen Count - Low 

 Pollen forecast for trees with a low green pollen count.

Oak pollen generally at a low risk as the season is in decline.

Fungal Spore Levels - High


Cladosporium spores are likely to rise to a high risk this week during warm weather. Other types will be low.

Weed Pollen Count - Moderate 

Pollen forecast for weeds with a moderate yellow pollen count.

Weed pollen risk will rise to moderate in central and southern areas of the UK this week, with dock, nettle and plantain the main allergens airborne.

Further Information      

For more information about this service please contact Dr Beverley Adams-Groom on 01905 855411 or via email.

Pollen forecasts are available on a regional basis to cover the whole of the UK including Northern Ireland and the Republic of Ireland. They can also be provided in detail for individual regions.

Daily pollen and spore forecasts are issued from mid-March to early October

Daily pollen forecasts are featured in newspapers, on radio, on television and various web pages.

All the forecasts are based on information from the quality controlled data produced by the National Pollen Monitoring Network, combined with the information from weather forecasts, local vegetation and typography types and information about biological factors and the weather in the preseason period that influences the pollen count.

Science at Worcester

If you are interested in the science behind the pollen forecast, you may be interested in our science degrees.