FAMED as "the window of the community", the Clifton Show is one of the oldest ongoing agricultural shows on the Southern Downs. Over three massive days the small town swells in numbers, attracting a large number of exhibitors across its many sections starting tonight, the All Breeds Heifer Show to tomorrow's championship dog show and Sunday's jam-packed horse program.

For long-time show secretary Adele Saville, one of the highlights of the weekend is the All Breeds Heifer Show on the Friday night.

"It's always a highlight of the show for me - it involves young people parading the cattle," she said.

"There's some pretty big prize money on offer for cattle owners and paraders."

The popular sheepdog trials will return this year after they were cancelled due to drought conditions in 2014, but Mrs Saville warned the weather would have a big effect on numbers in the pavilion and stud cattle sections.

"Climatic conditions will play a big, big part - it will affect entries," she said.

"The biggest problem is some areas have had bad hail, others haven't had any rain at all." For those chasing entertainment, Clifton Show has a bumper Saturday night planned combining rodeo, riders, fireworks and music.

Jacko the loveable rogue from The Rooftop Express Show will bring his entertaining blend of horsemanship, working dogs, quad bikes and rooftop fun to the Clifton Showgrounds.

"We have the popular rodeo, fireworks and the RASQ Outback Riders as part of the Saturday night program this year," Mrs Saville said.

What's on

Where: Clifton Recreation Grounds

When: Today - Sunday

Cost: $10 for adults, $6 for pensioners and $4 for high school students Saturday & Sunday; Friday (after 3pm) $5 adults, $3 high school students and pensioners.