 Radar courtesy MyRadar | © OpenStreetMap contributors | * Heat advisory Saturday from noon to 8 p.m., for the District and points east of Interstate 95 | Flash flood watch this afternoon into the overnight * Today's daily digit A somewhat subjective rating of the day's weather, on a scale of 0 to 10. 3/10: Perhaps the least comfortable day of summer so far. If you're out and about... water. Keep an eye to the sky for late-day storms. Express forecast - Today: Heat indexes near 105. Partly cloudy. Showers/storms late. Highs: Mid-90s.
- Tonight: Showers and storms may continue, then some clearing. Lows: Upper 60s and lower 70s.
- Tomorrow: Partly cloudy. Less humid. Slight chance of a shower. Highs: Mid-80s.
Forecast in detail Our weeklong heatwave tries to peak on its final day. And if temperatures don't make that mark then heat indexes will give it a try. As is often the case, the day before a cold front can be brutal. Near and east of the Interstate 95 corridor, "feels like" values past 105 are possible throughout the afternoon. Showers and storms that become likelier with time signal change on the way. Today (Saturday): Our one-day break in disgusting humidity was nice. Today we're back into the soup. With high temperatures similar to Friday, or temperatures mainly heading into the mid-90s, the heat index is set to slam us. We could be talking values of 105 or higher during the afternoon, especially D.C. and eastward. Clouds increase with time, and showers or storms become likely heading into mid-to-late afternoon or early evening. Winds are from the southwest around five to 10 mph, with stronger gusts. Confidence: Medium-High  | Storm Threat Level 1 - Everyday Storm Readiness
- Chance of storms
- Isolated storms may be severe
| Tonight: Showers and storms are likely during the evening and potentially into the night. It's probably a situation where the storms are a bit hit-or-miss, but some places get slammed in a short period. As much as two or three inches may fall in the heaviest activity, potentially leading to localized flash flooding. Otherwise, a general quarter inch to an inch where it rains, and some spots don't see much at all. It's humid through the night, with the front passing sometime near dawn. Lows reach the upper 60s and lower 70s. Confidence: Medium-High Follow us on Facebook, Twitter, and Instagram for the latest weather updates. Keep reading for the forecast through the weekend... Tomorrow (Sunday): The forecast for the end of the weekend is considerably improved, although it might be tenuous. At this point it seems the front will sink far enough south that most of the rain risk is south of us. I wouldn't rule out a few showers, but it's mainly partly cloudy skies and somewhat pleasant northwest breezes blowing drier air in. Dew points in the mid-60s by afternoon, coupled with highs in the mid-80s, might almost feel pleasant after the heat wave we've endured. If the front shifts back north, rain chances rise. Confidence: Medium-High Tomorrow night: Skies stay partly cloudy. A shower or two could pass, especially south or east of the city. Lows are in the mid-60s to near 70, with humidity down somewhat compared to recent nights. Patchy late night fog may form as well. Confidence: Medium  The sun rises on a hot Friday in the city. (Jeannie In D.C./Flickr) | A look ahead On Monday we've still got the meandering and dissipating frontal zone to watch. Newer weather modeling continues to suggest it will stay farther south than it once appeared, which means rain chances are much diminished. As you head south, odds of raindrops or some storminess grows. Highs reach the mid- to upper 80s. Confidence: Medium The front is more fully dissipated by Tuesday, which should lead to increased sunshine locally. When you've got lots of sun in July, it tends to be hot. This one fits the bill as highs rise to around 90. An isolated storm may pop up in the afternoon. Confidence: Medium | 
