Richard Harvey, from Canoe Wales, told ITV News that Team GB were facing stiff competition from eastern European rivals, in day two of the Canoe Slalom World Cup at Cardiff International White Water.
More top news
Many places will start dry, but rain in the southeast will spread to most for a time overnight.
The family of Isaac Nash who went missing after being swept out to sea last summer have presented a cheque for £10,000 to the RNLI.
There is likely to be a good deal of cloud around today, thickest in the southeast, where outbreaks of rain are possible at times.