Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Arctic Air Plunges into the Great Lakes, Northeast and Mid-Atlantic

Arctic air dropping through the northern and eastern U.S. and a storm off the east coast will bring periods of snow, very cold wind chills and hazardous traveling conditions from the Upper Great Lakes to the Northeast. Meanwhile in southern California, Santa Ana winds will decrease but hot, dry air will remain over the area with elevated fire weather conditions. Read More >

Current conditions at

Manchester Airport (KMHT)

Lat: 42.93°NLon: 71.44°WElev: 223ft.

Overcast

30°F

-1°C

Humidity 92%
Wind Speed NW 6 mph
Barometer 29.28 in (993.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 12 Dec 8:53 pm EST
Extended Forecast for

Merrimack NH

Winter Weather Advisory until December 13, 01:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 13, 01:00am

    NOW until
    1:00am Wed

    Winter Weather Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 25. West wind 5 to 10 mph.

    Mostly Cloudy

    Low: 25 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 25. West wind 10 to 15 mph, with gusts as high as 30 mph.

    Mostly Sunny

    High: 25 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 16. West wind 10 to 15 mph, with gusts as high as 30 mph.

    Partly Cloudy

    Low: 16 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 28. West wind 10 to 15 mph.

    Mostly Sunny

    High: 28 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 8. West wind 5 to 10 mph.

    Mostly Clear

    Low: 8 °F

  • Friday

    Friday: Partly sunny, with a high near 27.

    Partly Sunny

    High: 27 °F

  • Friday
    Night

    Friday Night: A 30 percent chance of snow showers.  Mostly cloudy, with a low around 17.

    Chance Snow
    Showers

    Low: 17 °F

  • Saturday

    Saturday: Partly sunny, with a high near 31.

    Partly Sunny

    High: 31 °F

Detailed Forecast

Tonight
Mostly cloudy, with a low around 25. West wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 25. West wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 16. West wind 10 to 15 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 28. West wind 10 to 15 mph.
Thursday Night
Mostly clear, with a low around 8. West wind 5 to 10 mph.
Friday
Partly sunny, with a high near 27.
Friday Night
A 30 percent chance of snow showers. Mostly cloudy, with a low around 17.
Saturday
Partly sunny, with a high near 31.
Saturday Night
Partly cloudy, with a low around 16.
Sunday
Partly sunny, with a high near 34.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 22.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 39.
Click Map For Forecast
Point Forecast:
Merrimack NH
 42.86°N 71.49°W (Elev. 118 ft)
5:47 pm EST Dec 12, 2017
9pm EST Dec 12, 2017-6pm EST Dec 19, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database