Campers joined police to search through the night for the missing boy, who was last seen at a campsite at Thistledown Farm in Nympsfield, near Stroud at around 7pm last night.
Police said a more extensive hunt was due to start as daylight breaks.
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The last dregs of the showers clear later on tonight and then it'll be a sunshine all the way.
There's a Met Office warning been issued for more showers and possible thunderstorms this evening.
There's been yet another delay in the case of the two men accused of causing the death of North Devon teenager Scarlett Keeling.