Log In
    Favorites
        Member Settings
      Elev 63 ft, 42.834 °N 71.008 °W

      Merrimac, MA

      Merrimacport Station54°
      Updated: 5:51 AM EST on November 7, 2026 (GMT -5)
      3 minutes ago
      62°
      49°
      54
      Feels Like 54
      Rain Shower
      N
      8
      Lower temperature is expected today
      Wundermap

      Loading nearby stations…

       Wundermap
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Sat 11/07
        High 57°f
         86% Precip. / 0.03 in
        Rain diminishing to a few showers this afternoon. High 57F. Winds N at 5 to 10 mph. Chance of rain 90%.
        Tonight
        Sat 11/07
        Low 44°f
         88% Precip. / 0.17 in
        Rain likely. Low 44F. Winds NNW at 10 to 15 mph. Chance of rain 90%. Locally heavy rainfall possible.
        Tomorrow
        Sun 11/08
        High 55°f42°f
         13% Precip. / 0 in
        Cloudy skies early, followed by partial clearing. High around 55F. Winds WNW at 10 to 20 mph.
        Hourly Forecast
        Now
        55°
        6AM
        89%
        55°
        6:26AM
        Sunrise
        7AM
        55%
        55°
        8AM
        56°
        9AM
        57°
        10AM
        57°
        11AM
        57°
        12PM
        57°
        1PM
        56°
        2PM
        56°
        3PM
        55°
        4PM
        54°
        4:29PM
        Sunset
        5PM
        31%
        54°
        6PM
        53°
        7PM
        52°
        8PM
        52°
        9PM
        51°
        10PM
        37%
        51°
        11PM
        60%
        50°
        12AM
        82%
        50°
        1AM
        78%
        49°
        2AM
        75%
        49°
        3AM
        88%
        48°
        4AM
        67%
        47°
        5AM
        38%
        47°
        Precipitation
        89%
        Rain likely to end around 7:45 AM
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        20
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.76 in
        2. Visibility 7 miles
        3. Clouds Cloudy
        4. Dew Point53°F
        5. Humidity 96%
        6. Rainfall 0.78 in
        7. Snow Depth 0 in
         KLWM Station History
        Almanac for November 7, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 62°F 54°F 75°F 2022
        4. Low 49°F 33°F 20°F 1987
        5. Rain/Snow Depth
        6. Precipitation 0.2 in 4.6 in -
        7. Snow 0 in 0 in -
        Almanac for November 8, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 55°F 53°F 75°F
        4. Low 44°F 33°F 19°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:25 AM 4:28 PM
        3. Civil Twilight 5:56 AM 4:58 PM
        4. Nautical Twilight 5:22 AM 5:32PM
        5. Astronomical Twilight 4:49 AM 6:05 PM
        1. Length of Visible Light 11h 2m
        2. Length of Day 10h 3m
        3. Tomorrow will be 2 minutes 25 seconds shorter
        1. Moon 4:46 AM 3:17 PM
        2. 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
        Station Location
        Temp
        Windchill
        Heat Index
        Dew Point
        Humidity
        Wind
        Precip.
        Elev.
        Updated
        Loading nearby stations…
        Precipitation
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        Our AppsAbout UsContactCareers
        PWS NetworkWunderMap
        Trust CenterTerms of UsePrivacy PolicyData RightsPrivacy SettingsCookie NoticeData VendorsAccessibility Statement
        Level Access
        The Weather Company The Weather Channel Weather Underground Storm Radar
        © The Weather Company, LLC 2026
        Glossary