High temperatures on four of the past five days at Baltimore (BWI) failed to reach 80 degrees, with the fifth day barely touching 80. Only two days this month have topped 90 degrees. Fog is expected to develop around the bay toward dawn when low temperatures will fall into the mid 60s. Monday's weather will be mild again with most locations in the upper 70s to lower 80s, but it will feel humid with a southerly flow over the Middle Atlantic states. There may be some scattered showers around the region from time to time, but most areas will remain dry. The unseasonable mild weather will transition back to a more summery pattern this week as high pressure builds over the region on Tuesday through Thursday. Highs each day are expected to reach the mid to upper 80s with a few spots touching 90.
On the Maryland portion of Chesapeake Bay, a Small Craft Advisory is currently in effect through the afternoon. Winds tonight will come out of the west at 10 knots or less with wave heights of 1 foot or less. Winds on Monday will shift to the south at 10 knots or less with wave heights of 1 foot or less. Marine weather information is provided only as a guide. Boaters should always stay tuned to the latest forecasts and advisories from the National Weather Service.
The average high temperature for August 18 is 85 degrees and the average low is 65. The records at Baltimore on this date are 96 degrees in 2002 and 51 degrees in 1918. Weather data courtesy of the National Weather Service. For more weather updates, please visit my Chesapeake Bay Weather page on Facebook, and if you're heading to Ocean City feel free to check out my Ocean City MD Weather page on Facebook. You can also follow me on Twitter @chesbayweather.