A cold front sweeping through the region may provide the necessary trigger for some showers today, but will ultimately make way for a spectacular Labor Day weekend. Sunny skies, a comfortable late summer diurnal temperature range, and low humidity will prevail from Saturday through Monday. Such conditions are not surprising for early September, which on average is the sunniest time of year in Cambridge.
While this may be the most pleasant time of year at our location, in the tropical Atlantic early September is the climatological peak of hurricane season. No tropical cyclones have formed since Dean made its final landfall on the Mexican coast nine days ago, but there are a couple of areas to watch for tropical cyclogenesis over the next few days. The first spot is off the southeast coast of the United States, where an old frontal boundary could provide the spin needed for genesis. A well-defined easterly wave approaching the Caribbean also has the potential to spawn a tropical cyclone, as does another wave in the eastern Atlantic.
Tonight: Gradual clearing. Low 64°F (18°C).
Saturday: Mostly sunny, less humid. High 76°F (24°C).
Saturday night: Clear and calm. Low 59°F (15°C).
Sunday: Sunny. High 80°F (27°C).
Monday: Sunny, warm. High 86°F (30°C).