The weather service's local station in Pleasant Hill expects temperatures to continue to climb with highs of 63 degrees on Sunday and 64 degrees on Monday.
Mostly cloudy on Sunday, with highs in the low 30s (0 degrees Celsius). The cold front will move through Tuesday afternoon, and there will be rain and maybe some embedded thunderstorms starting sometime during the mid-morning hours ahead of the frontal passage with wind gusts up to 20 mph possible.
But forecasters are predicting the mercury will plunge again later this week, with the chance of wintry showers for the Black Country and Staffordshire.
Wednesday: Partly sunny with a high near 33 degrees and a low of 25 degrees. What's coming is simply a big change from the mild weather we've enjoyed lately, to average winter temps (technically, routinely below average cold).
There's a slight chance for flurries between Thursday and Friday, but the best chance to see a light snow or flurries will be Saturday, according to the Capital Weather Gang. Amid variable winds, temperatures should fall from the 60s early to the 40s and 50s late. With temperatures expected to dip below freezing for many, any fog that does develop would have the potential to deposit a thin layer of ice on colder surfaces. Temperatures should be in the low 30°s by Tuesday evening.
Forecasters are predicting that the United Kingdom will be hit by a cold snap later this week, with temperatures set to plummet to the minuses in parts of the county.
High pressure will remain in control Monday, leading to sunny skies and comfortable temperatures. The cold front passage will help drop temperatures right before midnight to the mid-40s, so our official lows for Tuesday will be in the 40s.
Be sure to dress for the late-day weather (windy and cold).