PM Update: Some payback for all the heat
Weekend half good and half iffy
After all the heat we've gone through recently, I think we deserve more days like this one. Just a few clouds are floating by in an otherwise blue sky. High temperatures generally in the mid-80s are actually a few degrees below average in most spots, and humidity levels are delightful. This time yesterday we were still sitting in low 70s dew points. Today they have fallen about 20 degrees -- enough to not even think about a "stickiness factor" (unless reading this).
Through Tonight: Awesome! This is almost like an early-fall preview here as evening readings drop into and through the 70s near sunset. Overnight lows range from near 60 in the coolest spots to around 70 in the warmest. If National Airport dips into the 60s, which is certainly possible, it will be the first time since the last meaningful cool down at the end of June and beginning of July.
Tomorrow (Saturday): Get your favorite outdoor weekend activities in tomorrow if you can since Sunday looks a bit iffy. Overall, it should be fairly similar to today but perhaps a touch warmer and with more clouds infiltrating the area late. Mostly-or-partly sunny skies during a good chunk of the day should promote highs rising to the mid-and-upper 80s. Thicker clouds and any rain shot should hold off till after sunset or during the overnight.
Record watch: As of yesterday, D.C.'s July temperature average was 83.4. The monthly record target is 83.1 (1993). We're still in the running for the July record, but today's high temperatures are lagging a bit, so #2 (83.0) or #3 (>82.6) appear more likely when factoring in tomorrow's expected temperatures. Either way, the June-July period will end up the warmest on record in D.C. and we are looking at the need for August to be cooler than normal to keep us from breaking the summmer (June-Aug) heat record set back in 1980. Our last cooler than normal month was February 2010.
| July 30, 2010; 3:15 PM ET
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