Here’s David Epstein’s forecast for the first full weekend of October

Gryffin Marks, 11, of Cambridge, airs his new bike at Lynch Family Skatepark on Monday. Nic Antaya for The Boston Globe


Friday is one of those days where although it starts murky, skies will become clear and the sunshine will take over. Temperatures will not be terribly warm as a Canadian air mass sits on top of us. Eventually, readings should get just under 60 degrees by 2 p.m. There will be a bit of a breeze in the afternoon, adding a slight chill to the air.

Friday’s highs will approach 55 to 60 degrees in most areas.


Temperatures overnight Friday are going to be at their chilliest levels so far this fall. There could be a little bit of frost west of Route 128 in those lower valleys. Remember, official temperatures are taken at 5 feet above the ground so plants right at ground level can be exposed to freezing temperatures even if the thermometer says it’s 35 or 36.


Overnight lows Friday will be in the 30s in many spots.

Eventually, the sun will boost readings toward or over 55 degrees in the afternoon Saturday, with wall-to-wall sunshine and light winds. It will be one of those ideal October afternoons for all autumn activities.

Saturday is coolish with sunshine.


On Sunday, a new system will begin to approach the area. I do expect clouds to increase quite quickly in the morning, leading to a milky sky in the afternoon. Any precipitation should hold off until Sunday night or Monday. If you’re looking to take foliage pictures this weekend, you’ll have the bright blue background on Saturday and a washed-out background on Sunday, which tends to keep the light looking more even.

Temperatures will be milder on Sunday with clouds moving in.

Early next week

After a few showers Monday, skies will clear later Tuesday, and much of the rest of the week looks quite nice with seasonal temperatures. Wednesday and Thursday look like great days.

Temperatures in the middle of next week will be seasonable.