Monday was the first day of 100 degree heat in Salina this summer. According to the National Weather Service, the official high in Salina Monday was 103. The first 100-degree day in Salina in 2025 was on August 8th, with a high of 102 degrees. The latest in the year Salina has ever officially reached a 100-degree temperature for the first time was September 25th, 2017. Heat indices will approach 115 degrees, mainly along the Kansas/Oklahoma bo