Ellis County is under a Red Flag Warning until 8 tonight.
Other affected counties include Trego, Scott, Lane, Ness, Finney, Hodgeman, Haskell and Gray.
South winds are forecast at 20 to 25 mph with gusts up to 35 mph. Humidity is expected to be as low as 12%.
Any fire that develops will catch and spread, quickly. Outdoor burning is not recommended, according to the National Weather Service.