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 Channel starting at 2 a.m. Monday, which is when the first flakes should start to fall:

2 a.m. -- Snow showers, 11 degrees, feels like 3 degrees

3 a.m. -- Snow, 11 degrees, feels like 2 degres

4 a.m. -- Snow, 12 degrees, feels like 0 degrees

5 a.m. -- Snow, 14 degrees, feels like 1 degree

6 a.m. -- Snow, 17 degrees, feels like 5 degrees

7 a.m. -- Heavy snow, 20 degrees, feels like 7 degrees

8 a.m. -- Heavy snow, 22 degrees, feels like 10 degreees

9 a.m. -- Heavy snow, 26 degrees, feels like 13 degrees

10 a.m. -- Heavy snow, 28 degrees, feels like 17 degrees

11 a.m. -- Heavy snow, 30 degrees, feels like 19 degrees

Noon -- Heavy snow, 30 degrees, feels like 19 degrees

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

2 p.m. -- Snow, 28 degrees, feels like 15 degrees

3 p.m. -- Snow, 23 degrees, feels like 10 degrees

4 p.m. -- Snow, 21 degrees, feels like 7 degrees

5 p.m. -- Light snow, 19 degrees, feels like 4 degrees

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

7 p.m. -- Snow showers, 15 degrees, feels like 0 degrees

8 p.m. -- Light snow, 16 degrees, feels like 1 degree

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

10 p.m. -- Snow showers, 15 degrees, feels like 0 degrees

11 p.m. -- Mostly cloudy, 15 degrees, feels like 0 degrees