Merrimac, MA Weather Conditions | Weather Underground

Light rain early...then remaining cloudy with showers in the afternoon. High 57F. Winds N at 5 to 10 mph. Chance of rain 80%.

Tonight

Sat 11/07

Low 44°f

84% Precip. / 0.19 in

Cloudy with periods of rain. Low 44F. Winds NNW at 10 to 15 mph. Chance of rain 80%. Locally heavy rainfall possible.

Tomorrow

Sun 11/08

High 55°f42°f

12% Precip. / 0 in

Cloudy skies early will become partly cloudy later in the day. High around 55F. Winds WNW at 10 to 20 mph.

Hourly Forecast

Now

55°

6AM

82%

55°

6:26AM

Sunrise

7AM

58%

55°

8AM

55°

9AM

57°

10AM

57°

11AM

57°

12PM

57°

1PM

57°

2PM

56°

3PM

55°

4PM

55°

4:29PM

Sunset

5PM

35%

54°

6PM

53°

7PM

52°

8PM

52°

9PM

52°

10PM

38%

51°

11PM

62%

51°

12AM

85%

50°

1AM

84%

49°

2AM

75%

49°

3AM

84%

48°

4AM

70%

48°

5AM

39%

47°

Precipitation

85%

Rain likely to end around 7:30 AM

Additional Conditions

Pressure 29.77 in
Visibility 7 miles
Clouds Cloudy
Dew Point54°F
Humidity 97%
Rainfall 0.78 in
Snow Depth 0 in

KLWM Station History

Almanac for November 7, 2026

Forecast Average Record
Temperature
High 62°F 54°F 75°F 2022
Low 49°F 33°F 20°F 1987
Rain/Snow Depth
Precipitation 0.23 in 4.6 in -
Snow 0 in 0 in -

Almanac for November 8, 2026

Forecast Average Record
Temperature
High 55°F 53°F 75°F
Low 44°F 33°F 19°F

Astronomy

Sun Rise Set
Actual Time 6:25 AM 4:28 PM
Civil Twilight 5:56 AM 4:58 PM
Nautical Twilight 5:22 AM 5:32PM
Astronomical Twilight 4:49 AM 6:05 PM

Length of Visible Light 11h 2m
Length of Day 10h 3m
Tomorrow will be 2 minutes 25 seconds shorter

Moon 4:46 AM 3:17 PM
Waning Crescent3% of the Moon is Illuminated

Nov 9

New Moon

Nov 17

Waxing Half First Qtr

Nov 24

Full Moon

Dec 1

Waning Half Last Qtr

Nearby Weather Stations

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