Whoa! Rain? Pasadena Could See Showers Starting Tuesday

There is a chance of showers and thunderstorms Tuesday night through Thursday due to moisture from the remnants of a tropical system moving north over the eastern Pacific, the National Weather Service said.

Temperatures will fall each day until Wednesday and stay cooler than normal throughout the week. 

Expect night through morning low clouds in most San Gabriel Valley areas Monday night and Tuesday morning, forecasters said.

There will be a slight chance of showers as early as Tuesday night, and a slight chance of thunderstorms across much of the region Wednesday into the night.

Here is the day-by-day play-by-play forecast from the NWS as of 3:51 a.m.:

Today: Patchy fog before 11 a.m. Otherwise, cloudy through mid-morning, then gradual clearing, with a high near 89. South wind 5 to 10 mph.

Tonight: Patchy fog after 11 p.m. Otherwise, increasing clouds, with a low around 60. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.

Tuesday: Patchy fog before 11 a.m. Otherwise, cloudy through mid-morning, then gradual clearing, with a high near 87. Southeast wind 5 to 15 mph becoming south southwest in the morning.

Tuesday Night: A 20 percent chance of showers after 11 p.m. Partly cloudy, with a low around 61. Southeast wind 5 to 10 mph.

Wednesday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Southwest wind 5 to 15 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.

Thursday: Mostly sunny, with a high near 83.

Thursday Night: Partly cloudy, with a low around 60.

Friday: Sunny, with a high near 83.

Friday Night: Partly cloudy, with a low around 60.

Saturday: Sunny, with a high near 86.

Saturday Night: Partly cloudy, with a low around 61.

Sunday: Sunny, with a high near 89.