Pasadena Set For Warm Spring Week After Brief Monday Showers

Pasadena residents will enjoy a predominantly warm and dry week ahead, with temperatures gradually climbing into the mid-70s following a brief chance of light rain on Monday, forecasters predict. The pleasant spring-like conditions are expected to peak midweek, offering ideal weather for outdoor activities throughout most of the period.

The forecast indicates Wednesday will be the warmest day of the week.  Afternoon highs are predicted to reach 73-75° with very low humidity around 15% and a high UV index of 6.

The week begins with a warm-ish Sunday reaching 70° with light and variable winds becoming south-southwest at 5-8 mph in the afternoon. But a weak cold front will move through the region on Monday, bringing cooler temperatures between 61-64°F and a 30% chance of light precipitation. Expected rainfall amounts remain minimal at less than 0.10 inches if precipitation occurs at all, with light winds becoming west-southwest at 5-10 mph and possible gusts up to 15 mph.

Weather conditions will improve notably on Tuesday with abundant sunshine, temperatures rebounding to 67-68°, and northwest winds at 5 mph becoming westerly in the afternoon. The UV index will be moderate at 5, with very low precipitation chances of 1-4%.

The warming trend continues through midweek, with Thursday marking the first day of spring under sunny skies with scattered clouds, temperatures in the low 70s (71-73°), and winds around 7 mph. The UV index will be moderate at 3.

Daily temperature swings will be significant throughout the week, with morning lows typically in the 40s contrasting with afternoon highs in the 70s by midweek — a difference of approximately 25-30 degrees. The forecast recommends layered clothing for those spending extended time outdoors.

Friday will see continued warming with morning lows of 50-58° (sources vary) and afternoon highs of 72-76°, mostly sunny skies, and a moderate UV index of 5.

The weekend forecast shows a slight increase in cloudiness by Saturday with marginally higher precipitation chances between 6-25% (showing some uncertainty in the models), though temperatures will remain warm at 73-74° with morning lows of 48-58°F (sources vary) and humidity increasing to around 41%. Winds will be approximately 8 mph. No weather advisories or warnings are currently in effect for Pasadena during this forecast period.

Here is the latest National Weather Service forecast for Pasadena as of 3:29 a.m. Sunday morning:

Today: Mostly sunny, with a high near 70. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon.

Tonight: Mostly cloudy, with a low around 49. South southwest wind around 5 mph becoming calm in the evening.

Monday: A 30 percent chance of rain after 11 a.m. Partly sunny, with a high near 64. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday Night: A 20 percent chance of rain before 11 p.m. Partly cloudy, with a low around 43. West southwest wind 5 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.

Tuesday: Sunny, with a high near 68. North northwest wind around 5 mph becoming west in the afternoon.

Tuesday Night: Clear, with a low around 44.

Wednesday: Sunny, with a high near 75.

Wednesday Night: Partly cloudy, with a low around 47.

Thursday: Sunny, with a high near 71.

Thursday Night: Partly cloudy, with a low around 46.

Friday: Mostly sunny, with a high near 72.

Friday Night: Partly cloudy, with a low around 48.

Saturday: Mostly sunny, with a high near 72.