High pressure building into Northern California is bringing up north to northeast winds overnight into Sunday, prompting a red flag warning for the North Bay hills into Sunday. Dry, breezy conditions will be common throughout most of our hillsides beyond the North Bay, with hot temps, low humidity levels keeping fire danger high through Tuesday. Highs will climb into the 80s and 90s around San Francisco to inner bay with 90s and 100s likely inland. If winds still strong enough during the day Sunday, high temps could be slightly lower than forecast. Wind is expected to be lighter on Monday with a warmer start to the day making for the likely warmest day of this Fall heat spell. By Tuesday coastal areas and the inner bay should benefit from a mid-afternoon return of the sea breeze leading to cooling conditions for the remainder of the week. Next weekend could end up seeing below average temps, breezy conditions and a chance for some showers near the NorCal/Oregon border and Sierra for the first weekend of October.