Forecast Details for Merrimac, MA

Recent Locations: San Antonio, TX   Kindred, ND   Merrimac, MA  
Tonight: Rain likely, mainly before 11pm. Areas of fog. Otherwise, cloudy, with a low around 51. Northeast wind around 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday: A slight chance of rain before 10am. Patchy fog between 11am and noon. Otherwise, cloudy, with a high near 60. Northeast wind 7 to 9 mph. Chance of precipitation is 20%.
Sunday Night: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 48. Northeast wind around 6 mph becoming calm in the evening.
Monday: Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night: Partly cloudy, with a low around 51. Southeast wind around 5 mph becoming calm in the evening.
Tuesday: Sunny, with a high near 82. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night: Partly cloudy, with a low around 60. Southwest wind around 6 mph.
Wednesday: Sunny, with a high near 86. Southwest wind 6 to 9 mph.
Wednesday Night: Partly cloudy, with a low around 61. Southwest wind around 8 mph.
Thursday: Mostly sunny, with a high near 83. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Thursday Night: A chance of showers. Partly cloudy, with a low around 58. Southwest wind 6 to 8 mph. Chance of precipitation is 30%.
Friday: Mostly sunny, with a high near 77. West wind 6 to 9 mph.
Friday Night: Partly cloudy, with a low around 54. West wind around 6 mph.
Saturday: Mostly sunny, with a high near 73. West wind 6 to 8 mph becoming south in the afternoon.

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Cumulus Clouds Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle

Weather Topic: What is Evaporation?

Home - Education - Precipitation - Evaporation

Evaporation Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog