After a pleasant start to the week with both temperatures and humidity at lower levels for many, the weather pattern is expected to change and the warmth and humidity are expected to make a return by mid-late week as southerly winds return once again to portions of the corn-growing region. These southerly winds may also result in some corn earworm migration events, with nightly risks in the forecast beginning tomorrow night into Thursday mainly west of I-39 and I-55 from central Wisconsin south into central and western Illinois. Low risks then expand east into the southern Great Lakes and portions of the eastern corn-growing region Thursday night into Friday. Over the weekend, many fields especially in the central and southern portion of the corn-growing region, mainly south of I-94 and I-90, are in a continued Low risk. The eventual need for an upgrade to a Moderate risk is likely to come in the next day or two for the weekend and/or early next week once forecast confidence increases so stay tuned!