US wheat futures fell slightly on Tuesday, easing to a near two-week low on pressure from warming temperatures in the central part of the country that reduced the risk of freeze damage for dormant winter wheat plants, traders said. Most-active CBOT March wheat nearly fell below the $4 per bushel benchmark, reaching a session low of $4.00-1/4 before paring loses to finish at $4.03-1/4, down 1-3/4 cents.