Today: Partly to mostly cloudy. 60% chance of mainly p.m. storms. Near 90 to low 90s. | Tonight: 60% chance of evening storms. Low-to-mid 70s. | Tomorrow: Becoming mostly sunny. Isolated storm? Low-to-mid 90s. | A Look Ahead | Get Express Forecast by E-mail


Today (Sunday): First thing you’ll notice today, it’s juicy out there. Even without a whole bunch of sun, our temperatures climb steadily into the 80s, topping out from near 90 to the low 90s for highs. A few showers are possible early, but the best chance (60%) of showers and thunderstorms is during the afternoon. With this humid air mass, any storms could be very heavy rainers, so keep an eye out in low-lying and poor-drainage areas. Confidence: Medium

What is the Storm Threat Level?

Tonight: The evening offers a 50-60% chance of showers and storms, though any activity should tend to decrease in coverage by mid-to-late evening. We hold on to the chance of a lingering shower or two overnight with lows mainly in the low-to-mid 70s under mostly cloudy skies. Confidence: Medium

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

Tomorrow (Monday): Skies brighten and the humidity comes down a notch as we head back to work. Figures. Still, it’s a hot one with skies turning mostly sunny and temperatures climbing quickly toward highs in the low-to-mid 90s. Any shower or storm activity is more likely south of the area, but there’s still a 20% chance we see a shower or storm in or around D.C. Confidence: Medium-High

Tomorrow night: Aside from the chance of a stray shower, our evening and overnight feature mostly clear skies and mild air as lows range through the 70s, maybe near 80 downtown. Confidence: Medium-High


This next heat wave hits its stride on Tuesday. Mostly sunny skies and high humidity put a hurtin’ on us, with highs likely in the upper 90s and the afternoon heat index rising to near or a bit past 100. Only a slight chance of a shower or thunderstorm. It’s another mild and muggy one Tuesday night with partly cloudy skies and lows in the mid-70s to near 80. Confidence: Medium

Wednesday mostly likely marks the final day of this mini-heat streak. Sunny skies early allow temperatures to climb up into the 90s once again. But as a cold front approaches, heat-busting showers and thunderstorms become a decent bet by afternoon or evening. Confidence: Medium