A flood watch has been issued for the entire Washington, D.C. area from 2 a.m. to 2 p.m. on Saturday, as heavy rainfall is predicted. The day started off pleasant with morning sunshine, but clouds have been gradually gathering this afternoon as a storm looms in the south. While the evening may remain relatively dry, those planning to stay out late are advised to carry an umbrella.

According to the forecast, the clouds will continue to thicken throughout the evening, but the region should stay dry until after sunset. Rainfall is expected to arrive late in the evening, with the earliest showers hitting the southern and western areas. The rain will intensify during the pre-dawn hours and could become heavier by sunrise. Overnight temperatures will remain steady, hovering around 50 degrees Fahrenheit.

Saturday is likely to see the heaviest downpour in mid- to late morning, gradually tapering off in the early afternoon. The risk of flooding is especially high during this period and could persist for a while after. The rain is expected to clear out by midafternoon, with the highest temperatures reaching the mid-50s. Eastern parts of the region will experience warmer temperatures, while the west will be slightly cooler. As the storm departs, the winds will pick up, with gusts of 30 to 40 mph possible in the evening.

By the time the rain subsides, the area could accumulate between 1.5 to 2.5 inches of rainfall. Some locations east and northeast of D.C. may experience higher totals.

Sunday will bring a much-needed respite, with sunshine making a comeback and fewer clouds expected throughout the day. Morning temperatures will be chilly, ranging from near 30 to the mid-30s, but highs are projected to reach the low to mid-50s. Moderate winds of around 25 to 30 mph may be experienced during the midday and afternoon.

In other news, tree pollen levels are moderate, with 27.5 grains per cubic meter of air. For the latest updates on traffic, readers are encouraged to check out Gridlock.

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