Boston set a new daily record for warmth Wednesday morning when the thermometer at Logan International Airport reached 64 degrees, eclipsing the previous record high for Feb. 21 of 63, which was set 112 years ago, the National Weather Service said.
But another, bigger record might fall later in the day.
Forecasters say Boston will get even warmer as the day goes on. If Boston reaches 73 or higher, it will break the record for the single warmest February day ever recorded in Boston, forecasters wrote.
The previous all-time record for the month was set last year, on Feb. 24, 2017, when a temperature of 72 degrees was recorded by the weather service.
By 1:01 p.m. Wednesday, the official Boston temperature tracked at Logan International Airport was 70 degrees, according to the weather service.
By midafternoon Wednesday, Worcester and Hartford had already reported breaking high-temperature records for any day in the month of February. Worcester hit 70, breaking the 2017 record of 69. Hartford hit 74, breaking the 1985 record of 73.
Boston broke a daily record Tuesday as well when it reached 70 degrees, beating the previous record of 69 degrees.
The wave of warmth will be short-lived, however, with wintry conditions returning Thursday.
“Amazing difference in 24 hrs. Temps dropping 30-40° as precip moves in,’’ forecasters wrote on social media Wednesday.
The cold front will bring a mixed bag of precipitation and could be at its gnarliest during the Thursday evening commute, according to forecasters.
Greater Boston will get snow and sleet, communities on the northern tier of the state will see snow, and Southeastern Massachusetts is expected to get sleet, freezing rain, or just rain. Cape Cod and the Islands are due for just rain, the weather service said.