The climatological crystal ball is predicting a warm and dry fall perfect for corn and soybean harvest, but like any weather forecast, a slight shift in the jet stream or rise in sea-surface temperatures could change the outlook significantly.

As of now it’s promising, said Iowa State Climatologist Justin Glisan last week.

“The outlooks are showing us warmer temperatures and drier conditions” through October, said Glisan. “That’s good for dry down in the field; that’s good for harvest. We don’t get into wet conditions as we did in 2018-19.”

The 2022 forecast models, like in 2020-2021, suggest a more temperate pattern of mild...