One more day of intense heat is expected across parts of South Australia and New South Wales today. Temperatures are again expected to reach the upper 40s across interior areas of SA and NSW, particularly between Marree and Ivanhoe and including Menindee.

The heatwave this week has smashed many long-standing records with temperatures reaching 50 degrees in two towns in SA.

Furthermore, the extended hot spell has broken multi-day temperature records. Woomera's past 7 days have averaged a maximum of 46.7 degrees, its hottest week in 76 years of records, and 2.2 degrees hotter than its previous hottest week, in January 1979.

The heatwave will finally come to an end tomorrow, the first day of February as cooler southerly winds spread over most of SA and NSW in the wake of a surface trough.