IDW13160 Australian Government Bureau of Meteorology Western Australia Updated Great Southern District Forecast Issued at 9:40 am WST on Thursday 17 October 2024 for the period until midnight WST Sunday 20 October 2024. Warning Information For latest warnings go to www.bom.gov.au, subscribe to RSS feeds, call 1300 659 210* or listen for warnings on relevant TV and radio broadcasts. Weather Situation A complex low pressure trough will continue to move east, contracting into South Australia this morning. A new ridge will extend over southern WA in the wake of the trough during today and Friday. Another weak cold front will brush the southwest coast on Sunday. Forecast for the rest of Thursday 17 October Partly cloudy. Slight chance of a shower in the southwest in the morning. Near zero chance of rain elsewhere. Winds west to southwesterly 15 to 25 km/h becoming light in the evening. Daytime maximum temperatures 21 to 26. Katanning Partly cloudy. Max 22 Lake Grace Partly cloudy. Max 24 Narrogin Partly cloudy. Max 23 Fire Danger: Arthur: No Rating Roe: Moderate Lakes: Moderate Stirling North: No Rating Stirling West: No Rating Sun protection 8:20am to 3:30pm, UV Index predicted to reach 9 [Very High] Forecast for Friday 18 October Partly cloudy. Slight chance of a shower in the southwest in the morning. Near zero chance of rain elsewhere. Light winds becoming northwesterly 25 to 35 km/h in the morning then tending westerly 20 to 30 km/h in the late afternoon. Overnight temperatures falling to between 5 and 8 with daytime temperatures reaching 23 to 29. Katanning Partly cloudy. Min 7 Max 24 Lake Grace Mostly sunny. Min 7 Max 27 Narrogin Partly cloudy. Min 6 Max 25 Forecast for Saturday 19 October Partly cloudy. Slight chance of a shower in the southwest, most likely in the morning. Near zero chance of rain elsewhere. Light winds becoming northwesterly 15 to 25 km/h during the morning then becoming light during the evening. Overnight temperatures falling to between 8 and 11 with daytime temperatures reaching 24 to 32. Katanning Partly cloudy. Min 10 Max 26 Lake Grace Mostly sunny. Min 9 Max 30 Narrogin Partly cloudy. Min 9 Max 27 Forecast for Sunday 20 October Partly cloudy. Medium chance of showers in the southwest, slight chance elsewhere. Light winds becoming west to northwesterly 25 to 35 km/h during the morning. Overnight temperatures falling to around 10 with daytime temperatures reaching 23 to 33. Katanning Shower or two. Min 10 Max 25 Lake Grace Mostly sunny. Min 12 Max 31 Narrogin Possible shower. Min 10 Max 27 The next routine forecast will be issued at 4:25 pm WST Thursday. * Calls to 1300 numbers cost around 27.5c incl. GST, higher from mobiles or public phones. Copyright Commonwealth of Australia 2011, Bureau of Meteorology (ABN 92 637 533 532). Users of these web pages are deemed to have read and accepted the conditions described in the Copyright, Disclaimer, and Privacy statements (http://www.bom.gov.au/other/copyright.shtml).