Merrimac Weather Forecast 15 Days, Weather in Merrimac Today
Current weather conditions and 15 day weather forecast for Merrimac, Massachusetts, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Merrimac
| 09 August 2026 Sunday 23.5 ° C / 74.3°F  Clear |
Feels Like : 26.6 ° C / 79.9°F Humidity : % 86 Pressure : 1012 mb Wind Speed : 5.8 kmph / 3.6 miles from SW  Visibility : 2 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Merrimac, MA, USA
Weather Forecast for next 15 Days for Merrimac including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Merrimac, Massachusetts state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 08 August 2026 Saturday | Sunny |
22.3 ° C (72.1°F) |
34.6 ° C (94.3°F) |
27.4 ° C (81.2°F) |
% 72 | 57% | 7.4 | Sunrise:05:42 AM Sunset: 07:56 PM |
Moonrise:12:12 AM Moonset: 04:41 PM Moon Phase ( Waning Crescent ) |
|
| 09 August 2026 Sunday | Sunny |
20.3 ° C (68.5°F) |
33.5 ° C (92.4°F) |
26.4 ° C (79.6°F) |
% 64 | 4% | 7.7 | Sunrise:05:43 AM Sunset: 07:55 PM |
Moonrise:01:08 AM Moonset: 05:44 PM Moon Phase ( Waning Crescent ) |
|
| 10 August 2026 Monday | Sunny |
17.6 ° C (63.6°F) |
33.3 ° C (92°F) |
24.9 ° C (76.8°F) |
% 56 | 57% | 6.8 | Sunrise:05:45 AM Sunset: 07:53 PM |
Moonrise:02:18 AM Moonset: 06:36 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday | Sunny |
18.7 ° C (65.7°F) |
31.2 ° C (88.1°F) |
23.8 ° C (74.9°F) |
% 65 | 36% | 7.3 | Sunrise:05:46 AM Sunset: 07:52 PM |
Moonrise:03:39 AM Moonset: 07:17 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday |  Partly Cloudy |
15.5 ° C (59.8°F) |
21.8 ° C (71.3°F) |
18.3 ° C (64.9°F) |
% 80 | 79% | 1.4 | Sunrise:05:47 AM Sunset: 07:50 PM |
Moonrise:05:03 AM Moonset: 07:49 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday |  Fog |
15 ° C (59°F) |
28.4 ° C (83.1°F) |
20.8 ° C (69.4°F) |
% 69 | 47% | 7 | Sunrise:05:48 AM Sunset: 07:49 PM |
Moonrise:06:27 AM Moonset: 08:16 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Sunny |
13.5 ° C (56.3°F) |
24.7 ° C (76.4°F) |
19.1 ° C (66.4°F) |
% 51 | 3% | 6 | Sunrise:05:49 AM Sunset: 07:48 PM |
Moonrise:07:48 AM Moonset: 08:40 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Sunny |
13.8 ° C (56.9°F) |
26.1 ° C (79.1°F) |
19.2 ° C (66.6°F) |
% 54 | 3% | 7 | Sunrise:05:50 AM Sunset: 07:46 PM |
Moonrise:09:06 AM Moonset: 09:02 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
12.2 ° C (53.9°F) |
26.2 ° C (79.2°F) |
18.8 ° C (65.8°F) |
% 58 | 3% | 7 | Sunrise:05:51 AM Sunset: 07:45 PM |
Moonrise:10:22 AM Moonset: 09:25 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Sunny |
12.4 ° C (54.2°F) |
28.3 ° C (82.9°F) |
20.5 ° C (68.9°F) |
% 60 | 5% | 7 | Sunrise:05:52 AM Sunset: 07:43 PM |
Moonrise:11:36 AM Moonset: 09:50 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Partly Cloudy |
17 ° C (62.6°F) |
25.1 ° C (77.2°F) |
19.4 ° C (66.9°F) |
% 80 | 75% | 6 | Sunrise:05:53 AM Sunset: 07:42 PM |
Moonrise:12:49 PM Moonset: 10:18 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Partly Cloudy |
14.8 ° C (58.6°F) |
28.5 ° C (83.4°F) |
21.3 ° C (70.3°F) |
% 67 | 6% | 7 | Sunrise:05:54 AM Sunset: 07:40 PM |
Moonrise:01:59 PM Moonset: 10:53 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday |  Patchy rain nearby |
16.3 ° C (61.4°F) |
24.4 ° C (75.9°F) |
20.4 ° C (68.7°F) |
% 89 | 83% | 5 | Sunrise:05:55 AM Sunset: 07:38 PM |
Moonrise:03:06 PM Moonset: 11:34 PM Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Sunny |
13.5 ° C (56.3°F) |
22.4 ° C (72.4°F) |
17.8 ° C (64°F) |
% 71 | 10% | 6 | Sunrise:05:56 AM Sunset: 07:37 PM |
Moonrise:04:05 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
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