PM Update: Humidity returns tonight, boosting Monday heat index to near 100

On Jul 7, 2024

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This afternoon’s temperatures in the 90s will only slowly ebb into the 80s and stay there for much of tonight. Higher, more humid dew points nearer 70 degrees will start filtering back into the region, and with temperatures well into the 90s tomorrow, the heat index — what it feels like factoring in both heat and humidity — will reach around 100 degrees.

While a stray shower or storm is possible into tonight and perhaps a few tomorrow, the vast majority of the region stays dry.

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Through tonight: After any stray shower or storm, skies will stay at least partly cloudy. By sunrise, dew points will rise toward the upper 60s in the most humid spots. Semi-sultry temperatures will bottom out within a few degrees of 75.

View the current weather at The Washington Post.

Tomorrow (Monday): Morning skies will be brighter than in the afternoon hours, when we will have a 10 to 20 percent chance of thunderstorms that may linger into the night. Temperatures will top out within a few degrees of 95 and, with dew points near 70 degrees in the steamiest spots, heat index values in the low 100s will be possible. Clouds may hang around overnight as temperatures “cool” into the mid-70s to near 80 degrees.

See Molly Robey’s forecast into midweek. Come chat tonight on YouTube, Facebook, Instagram and X! Our 20-minute Sunday Sunset Live Q&A will start at 8:36 p.m.

Latest on Beryl — drought relief late week?

Make sure you’re following all of our Beryl coverage as the storm approaches Texas.

Here in the Mid-Atlantic, as early as Wednesday afternoon — and lasting perhaps as late as the weekend — there is a chance we see some leftover moisture from Beryl’s remnants.

Stay tuned as we watch whether Beryl brings much-needed drought relief (or at least halts the drought from worsening). Confidence remains a bit low, but one seven-day rainfall estimate, below, gives some hope.

We’ll cover this and look ahead at the week’s weather in tonight’s Sunday Sunset Live Q&A on YouTube, Facebook, Instagram and X! Our 20-minute chat will start at 8:36 p.m.