Brian's exclusive forecast for Annapolis: Mostly sunny, breezy, and cool today with a high in the upper 60s. North wind around 10 m.p.h. Clear and comfortably cool overnight with a low in the lower 50s. Mostly sunny on Wednesday with a high in the lower 70s and a light east wind. The outlook for the end of the week calls for a warming trend with highs in the upper 70s on Thursday and the lower 80s on Friday, both days featuring sunshine and light winds.
Temperatures this morning are seasonably chilly with mid 40s in Frederick to around 50 near Baltimore (BWI) to the lower 50s in downtown Annapolis. Making it feel even cooler is a brisk northerly breeze of around 10 m.p.h. During the day we can look forward to ample sunshine with highs in the upper 60s. Areas to the north may only reach the mid 60s, while southeast Virginia may touch the lower 70s. High pressure will continue to slide down from Canada and build over the Middle Atlantic states today. Later in the week, this low will move offshore and milder air will overspread the region as the high moves out to sea.
On the Maryland portion of Chesapeake Bay, a Small Craft Advisory is in effect until early this afternoon for northerly winds gusting over 20 knots at times. Winds will diminish overnight to less than 10 knots with waves 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 September 17 is 78 degrees and the average low is 57. The records at Baltimore on this date are 97 degrees in 1991 and 44 degrees in 1984. 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.