After a few days of cooler, more humid and gentle winds fire danger is set to spike in Western Australia's southwest late in the week. Since lightning-induced bushfires exploded late last week the weather has become kinder. Today, temperatures were held to the mid twenties by relatively humid westerly winds, keeping fire danger low. Monday is looking similar, giving firefighters a chance to gain some control. On Tuesday a front will cause wind to turn more southerly and freshen, potentially leading to flare ups. The front will also bring patches of light showers, although not enough to reduce fires significantly. On Wednesday wind will turn drier and warmer easterly and remain gusty, squeezed between a high pressure system to the south and a developing low pressure trough to the north. As a result of dry, gusty winds and temperatures reaching the high twenties, fire danger will start to rise again. From Thursday wind will become hotter, gustier east-northeasterly, taking temperatures to the mid thirties, humidities below 15 percent and fire danger into the very high or severe categories. Fire danger looks similarly high on Friday as temperatures rising to the high thirties become countered by easing northeasterly winds. Next weekend should see a cooler wind change move through, potentially raising humidity and bringing some rain. However, winds may strengthen again, adding some unpredictability.