Another heatwave is taking shape that will bring more triple-digit temperatures to some inland areas, especially toward Sacramento and the Central Valley, and it should be pretty nice in the city for that Dirtybird rave on the Embarcadero.

"Yes, this is happening... again," writes meteorologist Daniel Swain on X. "It may not be quite as extreme as last heatwave, but in some spots could approach levels that would be record-breaking but for last week."

The National Weather Service's Prediction Center put out a warning for the entire West and Southwest on Tuesday, saying that "anomalous heat" is predicted over the next five days in interior areas especially. Spots with the highest likelihood of "extreme" temperatures include inland Washington State, Oregon, Idaho, and the Mojave Desert. Most of the Central Valley and northern Nevada will see "major" heat as well.

Monsoonal moisture will also bring the risk of dry lightning in the Sierra and elsewhere, which could spark more wildfires.

For the Bay Area, the warmup today and Thursday is likely to be felt most in the North Bay, as the Chronicle's meteorology team explains.

And the newest heat dome is likely to persist well into next week, with above-average temperatures in many spots.

Accuweather's forecast has the best beach day chances in San Francisco looking like Friday and Monday, with highs only in the upper 60s Saturday and Sunday. Still, the sun should be shining on Embarcadero Plaza for that Dirtybird: Back To Baysics concert/rave on Sunday, and the simultaneous Daytime Realness happening at El Rio.

And SF's regular summer pattern of morning clouds giving way to sun will be in effect — but we should all be glad that this is an anomalous July, which is typically a month when the fog doesn't burn off until 4 pm and we're lucky if we ever see 70 degrees.