WEATHER UPDATE: Hour-by-Hour Forecast

By Les Masterson (Patch Staff)

The third snowstorm of the past week is headed toward Massachusetts and is expected to drop about a foot of snow across the area.

The first question most people have is: When is it going to start and how will it impact my commute to work?

The snow should begin overnight before intensifying during the morning commute. Snow will fall at a 1- to 2-inch per hour clip until noontime when it will not fall quite as hard. Snow is expected to stretch into the evening.

Here is the forecast on The Weather Channelstarting at 2 a.m. Monday, which is when the first flakes should start to fall:

1 a.m. -- Snow showers, 12 degrees, feels like 5 degrees

2 a.m. -- Snow showers, 12 degrees, feels like 3 degrees

3 a.m. -- Snow, 12 degrees, feels like 3 degrees

4 a.m. -- Snow, 13 degrees, feels like 1 degree

5 a.m. -- Snow, 14 degrees, feels like 2 degrees

6 a.m. -- Snow, 18 degrees, feels like 6 degrees

7 a.m. -- Heavy snow, 21 degrees, feels like 9 degrees

8 a.m. -- Heavy snow, 23 degrees, feels like 11 degrees

9 a.m. -- Heavy snow, 26 degrees, feels like 14 degrees

10 a.m. -- Heavy snow, 29 degrees, feels like 18 degrees

11 a.m. -- Heavy snow, 31 degrees, feels like 20 degrees

12 p.m. -- Heavy snow, 30 degrees, feels like 19 degrees

1 p.m. -- Snow, 30 degrees, feels like 19 degrees

2 p.m. -- Snow, 26 degrees, feels like 14 degrees

3 p.m. -- Snow, 22 degrees, feels like 8 degrees

4 p.m. -- Snow, 22 degrees, feels like 7 degrees

5 p.m. -- Snow, 19 degrees, feels like 4 degrees

6 p.m. -- Snow showers, 17 degrees, feels like 1 degree

7 p.m. -- Snow showers, 16 degrees, feels like 0 degrees

8 p.m. -- Light snow, 17 degrees, feels like 2 degrees

9 p.m. -- Light snow, 17 degrees, feels like 3 degrees

10 p.m. -- Snow showers, 16 degrees, feels like 1 degree

11 p.m. -- Mostly cloudy, 15 degrees, feels like 1 degree