PM Update: Awesome for Now, But Heat is Coming

Heat indices approaching 100 just around the corner

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Today was about as perfect a day as we get in August, replete with blue skies, mild temperatures and relatively low humidity. To me and likely others, a great end to this work week. Highs that mostly reached the mid-80s this afternoon will slowly fall back this evening, making for a sweet night for all those start-of-the-weekend activities, before a warmer Saturday and sizzling Sunday and Monday.

Through Tonight: Just a few clouds will swing by through evening as temperatures fall through the upper 70s by sunset. We'll have one more cool overnight before things trend warmer. Lows should fall to near 60 in the coolest suburbs to the upper 60s downtown.

Tomorrow (Saturday): The beginnings of our heat wave arrive tomorrow, but temperatures will only rise to near-average levels. We will once again see plenty of sun as winds from the south and southwest begin transporting in higher humidity. Highs should rise to the upper 80s and near 90, with perhaps an isolated thunderstorm bubbling up late in the day.

See Josh Larson's full forecast through a hot Sunday into next week. And if you haven't already, join us on Facebook and follow us on Twitter.

How Hot? The heat gets turned up this weekend into early next week, in what could be the hottest stretch of the year around here. The newest GFS MOS (short for Model Output Statistics; a numerical output from one of the nation's main weather forecast models) is predicting a high of 97 on Sunday and a high of 99 on Monday at National Airport (DCA). What do you think the highest temperature will be at DCA over the coming days?