Forecast of the Day • A National Weather Forecasting Contest

Houghton, in the Upper Peninsula of Michigan, is one of the most wintery places in the U.S., with an average snowfall of more than 200 inches per year. But temperatures are almost 20 F above average at the beginning of this week. Wednesday's high temperature forecasts range from the mid 30's to mid 40's, with clouds and fog. Let's forecast Tmax for Houghton and see what happens.

Question: The predicted low temperature for Wednesday morning is about 30 F. If there are clouds and fog all day, how will it possible to raise the temperature by 10 degrees or more?