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Posted at 02:00 PM ET, 10/11/2010

Record watch: Dulles crushes old record

Can National and BWI also make history?

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In what is almost certainly summer's last hurrah, temperatures today head for the mid-to-upper 80s.

The mercury has already sailed past Dulles Airport's (IAD) previous record high of 78 from 2001.

Reagan National's (DCA) record of 90 from 1919, the latest its ever hit 90, probably won't be matched or exceeded. Likewise, BWI's record of 89 from 1954 is a reach.

Track temperatures each hour below...

11 a.m.: IAD, at 77, is already just one degree short of its record. DCA is at 75. BWI is the warm spot, all the way up to 79.

Noon: Dulles has already obliterated its 2001 record, soaring to 83 at noon. Reagan National is really lagging, just at 77. BWI is up to 82.

1 p.m.: Dulles tacked on another degree, and is now up to 84. BWI did likewise, inching up to 83 Reaching the record of 90 is practically out of the question at DCA, as it's only up to 80 there.

2 p.m.: Suddenly, this has gotten interesting. DCA has surged up to 87. 90 might be in play after all. BWI is at 84, Dulles 85.

3 p.m.: 87 again at DCA. I suppose it may have hit 88 or 89 inter-hour, but we won't know until the National Weather Service issues its daily climate report around 5:30 p.m. The bottom line is that hitting 90 looks tough - unless we can spike in the next 30-45 minutes before we start losing a lot of sunlight. BWI is at 83, and Dulles 85.

4 p.m.: DCA is holding at 87 for the third straight hour. IAD is at 85, and BWI is up a degree to 84. Next update will be around 5:30 when the preliminary highs are released.

By  |  02:00 PM ET, 10/11/2010

Categories:  Local Climate

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