Boston Marathon

Meteorologists say Marathon Monday weather will be sunny, mild

Though temperatures will rise throughout the day, a sea breeze in Boston should keep the finish line cool.

Temperatures for Marathon Monday are expected to be "seasonal," according to meteorologists, with a sea breeze blowing in to greet runners and spectators at the finish line in Boston. (Pat Greenhouse/Globe Staff)

Boston Marathon runners and spectators are in for a sunny and mild Marathon Monday. Expect slightly cooler temperatures, likely in the mid to upper 50s, at the starting line in Hopkinton, according to National Weather Service meteorologist Kevin Cadima. 

“The temperature in Hopkinton will rise throughout the day, but the temperature in Boston at the finish should also be in the 50s because of a cooling sea breeze,” Cadima said. 

As of Sunday morning, sunny skies are expected overhead for Monday. 

“No chance of rain,” Cadima said.

Globe meteorologist Ken Mahan said temperatures should be between 55 and 60 degrees Monday afternoon in Boston, with wind speeds are predicted to stay below 10 miles per hour throughout the course.

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Here’s what local meteorologists are saying about this year’s Boston Marathon weather forecast:

Ken Mahan, Boston Globe: ‘Great day to run or watch a race’

Chris Lambert, 7News: ‘Crisp start to this Marathon Monday’ 

David Williams, WCVB: ‘Winds will be calm for Marathon Monday’

Eric Fisher, WBZ: ‘Giving way to 60s and sunshine’

Pamela Gardner, NBC10 Boston: ‘Sea breeze at the finish line’

Hour-by-hour weather forecast:

Weather Forecast

Boston, MA

46°Partly sunny
High 51°Low 41°
Partly sunny
  • RealFeel® 48° F
  • Humidity 33%
  • Precipitation 5%
  • Wind 8 MPH W
  • Visibility 10MI

Hourly Forecast

  • 1PM suncloudsuncloud Precipitation potential0% 48 ° F
  • 2PM cloudsclouds Precipitation potential0% 49 ° F
  • 3PM cloudsclouds Precipitation potential0% 50 ° F
  • 4PM cloudsclouds Precipitation potential0% 52 ° F
  • 5PM cloudsclouds Precipitation potential0% 51 ° F
  • 6PM cloudsclouds Precipitation potential0% 49 ° F
  • 7PM cloudsclouds Precipitation potential0% 46 ° F
  • 8PM cloudsclouds Precipitation potential3% 45 ° F
  • 9PM cloudsclouds Precipitation potential3% 43 ° F
  • 10PM cloudsclouds Precipitation potential3% 43 ° F
  • 11PM cloudsclouds Precipitation potential5% 42 ° F
  • 12AM cloudsclouds Precipitation potential5% 41 ° F

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