Merrimac, MA Weather Forecast
Local 7-day forecast
Slight Chance Light Rain then Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Merrimac, MA in one place.
A slight chance of rain before 8am, then a slight chance of rain showers between 8am and 3pm. Cloudy, with a high near 49. South wind 6 to 9 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Merrimac, MA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 21, 2026 3:55 AM EDT.
The active forecast window currently covers Apr 22 to Apr 27, 2026 for Merrimac, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 27, 2026
- Latest sync
- Apr 21, 2026 3:55 AM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Merrimac
Thursday looks like the warmest upcoming period in Merrimac at 60 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 40 degrees F.
The strongest winds are forecast for Thursday at about 3 to 10 mph NW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 21, 2026 3:55 AM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- BOX
- Radar station
- KBOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers between 8pm and 10pm. Mostly cloudy, with a low around 40. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Partly sunny, with a high near 60. Northwest wind 3 to 10 mph, with gusts as high as 21 mph.
Partly cloudy, with a low around 40. Northwest wind 5 to 8 mph.
Mostly sunny, with a high near 58. North wind around 7 mph.
Partly cloudy, with a low around 40. East wind 3 to 7 mph.
A chance of rain showers after 7am. Partly sunny, with a high near 55. Northeast wind 3 to 8 mph. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 42. Southeast wind 2 to 6 mph. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a high near 58. Northeast wind 3 to 8 mph. Chance of precipitation is 30%.
A slight chance of rain showers. Partly cloudy, with a low around 42. East wind around 6 mph.
A slight chance of rain showers. Partly sunny, with a high near 60. Northeast wind 3 to 8 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Slight Chance Light Rain then Slight Chance Rain Showers
|
49°F |
6 to 9 mph
S
|
|
Wednesday Night
Apr 22
|
Slight Chance Rain Showers then Mostly Cloudy
|
40°F |
3 to 7 mph
SW
|
|
Thursday
Apr 23
|
Partly Sunny
|
60°F |
3 to 10 mph
NW
|
|
Thursday Night
Apr 23
|
Partly Cloudy
|
40°F |
5 to 8 mph
NW
|
|
Friday
Apr 24
|
Mostly Sunny
|
58°F |
7 mph
N
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
40°F |
3 to 7 mph
E
|
|
Saturday
Apr 25
|
Chance Rain Showers
|
55°F |
3 to 8 mph
NE
|
|
Saturday Night
Apr 25
|
Chance Rain Showers
|
42°F |
2 to 6 mph
SE
|
|
Sunday
Apr 26
|
Chance Rain Showers
|
58°F |
3 to 8 mph
NE
|
|
Sunday Night
Apr 26
|
Slight Chance Rain Showers
|
42°F |
6 mph
E
|
|
Monday
Apr 27
|
Slight Chance Rain Showers
|
60°F |
3 to 8 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Merrimac.
