Historical weather data, all-time temperature records, and monthly climate averages for Westford, MA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Westford sits in that classic New England in-between zone — expect a high around 54° and a low near 33°, with a 31% chance of rain. The date has seen wild swings across 127 years of records, from a balmy 78° back in 1910 to a brutal 18° low in 1995. Snow is technically possible but unlikely, with only a 3% chance.
Westford's weather has real teeth at both extremes — the thermometer has touched 103° as recently as June 2025 and plunged to -29° in February 1943, an 132-degree spread between all-time records. For rainfall, Hurricane Edna dropped 6.97 inches in a single day in September 1954, while the Blizzard of 2013 buried the town under 22.1 inches of snow on February 9th.
Summer is peak season here, with highs averaging 84-85° in mid-July and comfortable 70s through much of May and June. Winters are cold and genuine — January and February hover in the mid-30s, and you can count on snow. If you're watching rain, the wettest stretch is actually late December, averaging nearly an inch per week.