Proceeds from a ball to be held in memory of Charlie Harris Beard will go to his charity Cords4life.
Charlie from Worcestershire, died in February from leukaemia but his life was prolonged after he received a cord donor transplant from America.
Charlie's parents now want to make sure others can benefit from cord blood donation.
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Monday will be misty with overcast skies bringing periods of mostly light rain or drizzle.
Largely cloudy and mild, with outbreaks of rain or drizzle in most places and extensive hill fog.
Further low cloud, mist and hill fog is expected with outbreaks of rain and drizzle throughout the night.