A brisk, cool Indigenous Peoples’ holiday is set to launch the greater Boston area into even chillier fall temperatures in the coming week, according to National Weather Service forecasting.

“It’ll be a little bit warmer (Monday) than (Sunday) with some sun,” said NWS meteorologist Matthew Belk. “And then it turns colder.”

For those looking to get outside to enjoy their Indigenous Peoples’ and Columbus Day, a drearier morning will kick off with a slight chance of showers before 11 a.m. and some fog. The sun is forecast to gradually come out heading into the afternoon.

Temperatures are predicted to be a little higher for the holiday, ranging from 39 to 60 degrees, and winds are expected to be light to moderate throughout the day, NWS said.

High temperatures for the Boston area are then predicted to drop down into the mid to high 50s for most of the work week, according to forecasts, with frostier lows in the 30s.

Average seasonable temperatures for this time of year in the region is a high of 63 degrees and a low of 49 degrees, Belk said.

“As we get towards late week and the next weekend, it starts to warm up again, back up into the 60s,” Belk said.

Skies are expected to remain mostly clear or sunny all week after Monday, according to the NWS forecasts, with light to moderate winds blowing throughout the week.

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NWS forecasters also issued small craft advisories off the coast of the region through Monday into Tuesday morning. The advisory recommends “inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.”

The advisories include Nantucket Sound, Vineyard Sound, Buzzards Bay and large stretches of ocean around Provincetown, Chatham, Nantucket, and Martha’s Vineyard. Advisories in the area were also issued for waters off of New Hampshire, New York and Rhode Island.

“Small craft advisory is generally issued when we expect winds of 25 knots or greater, or seas of five feet or greater,” said Belk. “Those pose a threat to small crafts and generally this time of year, it’s a very frequent occurrence.”