World and Nation

Temperature Extremes

Temperature Extremes

We are still in that time of the year when the diurnal, or daily, temperature range can be rather large. Clear skies and light winds are ideal conditions to make this happen, with abundant sunlight to warm the surface during the day, and good radiational cooling at night lowering temperatures. For instance, Bedford (10 miles to the northwest of Boston) reported a temperature of 26 degrees yesterday morning, while Martha’s Vineyard was even colder — an amazing 22 degrees Fahrenheit! Meanwhile in Boston, the ocean’s influence kept temperatures near 40. Within two hours of sunrise, all three locations were nearly the same temperature — about 50°F. So within the next few weeks, if the sun is setting upon clear skies and light winds, there’s a good chance it’ll be cold before sunrise.

In the Boston area today, expect mostly cloudy skies and cool temps as the winds will blow from the cold ocean. A warm front will try to push into the area today, but any associated showers should remain to our south. Cool high pressure will dominate the first half of the weekend, while the chance of showers increases again by Monday with the passage of a slow-moving cold front. Have a great weekend!

Today: Mostly cloudy with a slight chance of showers. Highs in the mid 50s°F (13°C).

Tonight: Cloudy. Lows in the lower to mid 40s°F (6°C).

Tomorrow: Partly sunny. Highs in the upper 50s°F (15°C). Lows in the mid 40s°F (7°C).

Sunday and Monday: Mostly cloudy with a chance of showers, mainly for Monday. Highs near 60°F (16°C). Lows in the mid 40s°F (7°C).