A weather expert has encouraging news for the thousands of people who will converge on Mystery Creek, near Hamilton, for the largest agricultural event in the Southern Hemisphere.
Fieldays is based on a 114-hectare site and runs from Wednesday to Saturday.
WeatherWatch's head weather analyst Philip Duncan said punters should expect just a few showers across the four-day event.
"While not perfect, there is nothing stormy either so dress for cloudy weather at times and perhaps a few showers," he said.
He said the shower risk was shifting around due to the weak wind flow over the next few days.
"Generally speaking there is a chance of some drizzle or a light shower on Wednesday and again on Saturday, but nothing major though."
Duncan said Wednesday's shower risk may not be until later in the day too, which means it could linger overnight and then clear on Thursday morning.
"Even though cloudy at times any fog looks likely to stay away - but there is a chance for some brief low cloud or fog."
Fieldays is run by the New Zealand National Fieldays Society, a charitable organisation founded in 1968 for the purpose of advancing primary industry.
In 2018,130,866 people visited the event, and it generated $492m in sales revenue for New Zealand businesses.