Wheat was supported by forecasts of warm and dry weather in the northern U.S. Plains, potentially stressing newly planted spring wheat, and as excessive rains have swamped fields in the southern Plains and the Midwest. The most active wheat futures on the Chicago Board of Trade climbed 0.2 percent to $4.30-1/4 a bushel. The U.S. Department of Agriculture this week rated 62 percent of the U.S. spring wheat crop as good to excellent, down significantly from 79 percent a year earlier.