* Flash flood watch through this evening *

1:55 p.m. update: See new, updated post for latest on storm situation: Heavy storms with strong winds and flooding possible through this evening

10:15 a.m. update: The National Weather Service Weather Prediction Center indicates we have a slight risk of excessive rainfall today. It says 1-2 inches of rain are possible with isolated totals over 3 inches along the I-95 corridor and just to the east.

Original post from 5 a.m.

TODAY’S DAILY DIGIT
A somewhat subjective rating of the day’s weather, on a scale of 0 to 10.

4/10: Plenty of rain-free hours today, but when it comes, it may come in torrents.

EXPRESS FORECAST

Today: Warm, humid with storms likely late. Highs: 80-85.
Tonight: Storms likely. Lows: 60-65.
Tomorrow: Decreasing shower chances. Cooler. Highs: 72-77.

FORECAST IN DETAIL

2-hour radar loop. Refresh page to update.

D.C. did a good job dodging rain in May, but – with the start of June – is set to get doused. A slow-moving cold front brings a good chance of storms with heavy rain as today wears on. It scoots south of us Tuesday, but then hangs around close enough to be a focus for occasional rain chances for a couple days longer. The air cools behind the front, with temperatures in the 70s for midweek before heading back to 80-degree territory into the weekend.

Today (Monday): One more very warm and humid day. Skies are variably cloudy with enough sun to provide fuel for storms that may fire up as the day goes on. It’s the kind of day when a stray pop-up shower or storm is possible at any time, but the rain chances increase the most, from northwest to southeast, in the afternoon and into the evening. Any storms that form will likely contain heavy downpours and could have some strong wind gusts. Confidence: Medium

Tonight: Showers and thunderstorms with heavy downpours are likely – at least through around midnight. Some localized flooding is possible, with rainfall totals averaging around 1 inch, but areas with higher amounts. Rain decreases in coverage and intensity after midnight, with lows 60-65. Confidence: Medium-High

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend…

Tomorrow (Tuesday): With Monday’s front south of the area, cooler winds filter in from the north. There’s a lingering 20-40 percent chance of showers, with the best chance in our southern suburbs. Skies are mostly cloudy, with highs in the mid-70s. Confidence: Medium

Tomorrow night: Partly to mostly cloudy with a slight (20 percent) chance of showers. Lows range from near 60 downtown to the mid-50s in our cooler suburbs. Confidence: Medium

A LOOK AHEAD

Both Wednesday and Thursday are cooler than normal with winds coming in from the north and northeast. Highs should be in the mid-70s. We can’t rule out showers either day (40 percent chance), but more hours should be dry than not. Wednesday and Thursday nights are both partly to mostly cloudy with lows in the upper 50s in our cooler suburbs to the low-to-mid 60s downtown. Confidence: Medium

Temperatures return to near normal Friday through the weekend with highs all three days in the 80-85 degree range, and overnight lows in the 60s. We’ll keep a chance of showers or thunderstorms in the forecast each afternoon-evening period, but they shouldn’t be widespread. The late week and weekend weather pattern is a bit convoluted, so check back for updates. Confidence: Low-Medium