Australian Government Bureau of Meteorology - South Australia Weather Situation A high pressure system over the Tasman Sea extends a ridge across the north of SA. A cold front will move across the south of SA today. Another high pressure system southwest of WA will extend a ridge over southern SA behind the front. The high will then move eastwards to be centred south of SA on Friday. Forecast for the rest of Tuesday 23 April Partly cloudy. Winds north to northwesterly 25 to 40 km/h shifting southwesterly 30 to 45 km/h in the early afternoon then tending south to southwesterly 20 to 30 km/h in the evening. Daytime maximum temperatures in the mid to high 20s. Fire Danger: High Sun protection 9:50am to 2:30pm, UV Index predicted to reach 5 [Moderate] Adelaide Forecast City Centre Partly cloudy. Max 25 Clare Becoming windy. Partly cloudy. Max 25 Jamestown Partly cloudy. Max 26 Port Pirie Becoming windy. Partly cloudy. Max 28 Snowtown Partly cloudy. Max 27 Port Augusta Becoming windy. Partly cloudy. Max 31 Cleve Wind easing. Becoming cloudy. Max 25 Whyalla Becoming windy. Partly cloudy. Max 29 Spencer Gulf Forecast for Tuesday 23 April until midnight Strong Wind Warning for Tuesday for Spencer Gulf Winds: North to northwesterly 15 to 20 knots shifting south to southwesterly 20 to 30 knots in the middle of the day. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 2 to 3 metres during the afternoon. Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo by early evening. Weather: Partly cloudy. Australian Government Bureau of Meteorology - South Australia