Halloween temps dip to mid-40s as frost advisory expires

The weather pattern that has delivered repeated rounds of showers this week is finally weakening, though it leaves behind a cold snap that could complicate Saturday evening plans. A Frost advisory is currently in effect for the coast, metro, and valley regions, set to expire at 9 a.m. This morning, temperatures have cooled efficiently due to clear skies and minimal wind, with lows settling into the mid to upper 30s. Patchy fog has also developed, prompting drivers to slow down in areas of reduced visibility and allow extra travel time.

For those heading out for Halloween trick or treat, the forecast indicates mostly dry conditions. The remaining moisture from the departing storm system is minimal, meaning rain gear is likely unnecessary. However, a stray light shower or a few sprinkles cannot be ruled out between 5 p.m. and midnight. Temperatures during the evening hours will range from the mid-40s to the lower 50s. Residents should also remember to set their clocks back one hour before bed, as daylight saving time ends overnight.

The outlook improves sharply for Sunday. A ridge of high pressure is building in from the east as the storm system exits. This shift will bring mostly sunny skies and milder temperatures, with highs topping out in the mid to upper 50s. Overnight lows on Sunday will drop back to the upper 30s to around 40 degrees.

This high-pressure ridge is expected to persist through the first half of next week. The weather for the start of November will remain dry and mild, featuring a mix of sun and clouds. Temperatures through Wednesday are projected to stay in the upper 50s to around 60 degrees. The next opportunity for showers does not arrive until Thursday or Friday.

The current system has brought repeated rounds of showers to the region this week, but its influence is waning. The transition to the high-pressure ridge marks a clear break in the wet pattern. The forecast calls for gradually increasing cloud cover on Saturday after the morning fog clears, but the system will move overhead by evening. The dry conditions are expected to hold firm into early next week.