* Heat advisory in effect from 12 p.m. to 8 p.m. *

Code orange air quality alert for the D.C. metro — air quality will be unhealthy for sensitive groups *

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

2/10: Disgusting would be putting it gently.

EXPRESS FORECAST

Today: Variably cloudy, hot, humid. Slight shower chance. Highs: 92-97.
Tonight: Chance of overnight storms. Muggy. Lows: 72-78.
Tomorrow: Still sticky, chance of afternoon-evening storms. Highs: 88-94.

FORECAST IN DETAIL

Like Sunday, today is miserably hot and humid and Tuesday is only modestly better. But late Tuesday, a cold front – accompanied by scattered storms – sweeps through the region setting up significant improvement for the remainder of the week. Wednesday through Friday are not as hot and blissfully less humid. The weekend doesn’t look bad either, although humidity returns to more characteristic July levels and a few storms could pop either day.

Today (Monday): It’s downright muggy from the moment you step out the door, especially around the city (near and above 80 degrees even early in the morning). Under variably cloudy skies, temperatures heat up to near 90 by noon, and low-to-mid 90s for mid-late afternoon highs. Factoring in the humidity (dew points in the 70-75 range, slightly lower than Sunday but still very uncomfortable), it feels like 100 or so.

We could (20 percent chance) see an isolated shower early this morning and again popping up towards the mid-and-late afternoon hours. Winds are from the west at 5-10 mph. Confidence: Medium-High

Two hour radar loop of rain and storm movement through the area. Refresh page to update.

Tonight: Mostly cloudy and humid, with a 30-40 percent chance of storms, especially through the overnight hours as a cold front edges closer. Lows range from the mid-to-upper 70s downtown to near 70 in our cooler suburbs. Confidence: Medium

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

Tomorrow (Tuesday): It’s still very warm and humid but an approaching cold front and its associated clouds probably cap temperatures in the low 90s. Scattered showers and storms are a possibility (40-50 percent chance) some time between the afternoon and early evening hours. Winds are from the west at 5-10 mph. Confidence: Medium

Tomorrow night: Storms should taper by around sunset if not earlier. For the balance of the overnight hours, it’s partly cloudy with lows in the low 60s in our cooler suburbs to near 70 downtown. Humidity, mercifully, decreases as the night wears on. Confidence: Medium-High

A LOOK AHEAD

Wednesday through Friday are a breath of fresh air. All three days should bring a good deal of sunshine, low-to-moderate humidity levels, and some relief from the scorching temperatures. Highs Wednesday and Thursday are mostly in the mid-80s (when humidity is low-to-moderate), perhaps rising to the upper 80s to near 90 by Friday (when humidity is moderate). Overnight lows mostly range through the 60s (near 60 in our cooler suburbs, upper 60s downtown). Confidence: Medium

The weekend looks to be pretty typical for late July: Moderately hot and humid, with a small chance of a late day storm each day. Right now, there’s no strong signal for extreme heat or a washout – so while Wednesday and Thursday will be nicer days – this coming weekend should be a vast improvement over what we just experienced. Highs are probably around 90 with lows in the upper 60s in our cooler suburbs to the mid-70s downtown. Confidence: Medium