National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

Lawrence Municipal Airport (KLWM)

Lat: 42.71°NLon: 71.13°WElev: 135ft.

Light Rain Fog/Mist

42°F

6°C

Humidity 96%
Wind Speed Calm
Barometer 29.88 in (1011.9 mb)
Dewpoint 41°F (5°C)
Visibility 3.00 mi
Last update 22 Nov 9:54 am EST
Extended Forecast for

Merrimac MA

  • Today

    Today: A slight chance of rain before 11am. Cloudy early, then gradual clearing, with a high near 48. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 27. Northwest wind 3 to 6 mph.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 44. Calm wind becoming southwest around 5 mph.

    High: 44 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A slight chance of rain and snow showers before 9pm, then a slight chance of rain showers between 9pm and 10pm. Mostly cloudy, with a low around 31. West wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Isolated
    Rain/Snow
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 47. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 47 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27. West wind 3 to 5 mph.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 47. Southwest wind 3 to 6 mph.

    High: 47 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain. Low around 39. South wind around 6 mph. Chance of precipitation is 80%.

    Low: 39 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 57. Southwest wind around 7 mph. Chance of precipitation is 60%.

    High: 57 °F

    Rain Likely

Detailed Forecast

Today
A slight chance of rain before 11am. Cloudy early, then gradual clearing, with a high near 48. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 27. Northwest wind 3 to 6 mph.
Sunday
Mostly cloudy, with a high near 44. Calm wind becoming southwest around 5 mph.
Sunday Night
A slight chance of rain and snow showers before 9pm, then a slight chance of rain showers between 9pm and 10pm. Mostly cloudy, with a low around 31. West wind 3 to 6 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 47. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 27. West wind 3 to 5 mph.
Tuesday
Mostly cloudy, with a high near 47. Southwest wind 3 to 6 mph.
Tuesday Night
Rain. Low around 39. South wind around 6 mph. Chance of precipitation is 80%.
Wednesday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 57. Southwest wind around 7 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 38. West wind around 7 mph. Chance of precipitation is 40%.
Thanksgiving Day
Partly sunny, with a high near 48. West wind 8 to 10 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 32. West wind around 8 mph.
Friday
Mostly sunny, with a high near 43. West wind 8 to 10 mph, with gusts as high as 21 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrimac MA
 42.84°N 71.01°W (Elev. 135 ft)
Last Update:
5:31 am EST Nov 22, 2025
Forecast Valid:
10am EST Nov 22, 2025-6pm EST Nov 28, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation