Moderate to heavy rainfall is possible late Monday night and especially Tuesday. This could lead to pockets of brief poor drainage street flooding. Rain may change to a period of accumulating snow Tuesday evening as temperatures plunge from the upper 50s early Tuesday. Isolated northwest wind gusts to 45 mph are possible Tuesday night.

Tonight Mostly cloudy, with a low around 56. South wind 9 to 16 mph.Here’s the forecast:Monday:  Mostly cloudy, with a high near 75. Breezy, with a south wind 13 to 20 mph.Monday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 57. South wind around 14 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.Tuesday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 62. South wind around 17 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.Tuesday Night: A chance of rain showers before 1am, then a chance of snow showers between 1am and 2am. Some thunder is also possible. Mostly cloudy, with a low around 27. Blustery, with a northwest wind 16 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.Wednesday:  Sunny, with a high near 47.Wednesday Night: Patchy frost after 2am. Otherwise, mostly clear, with a low around 30.