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

Manchester Airport (KMHT)

Lat: 42.93°NLon: 71.44°WElev: 223ft.

A Few Clouds

29°F

-2°C

Humidity 38%
Wind Speed W 16 G 25 mph
Barometer 29.94 in (1015.8 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 17 Mar 8:53 pm EDT
Extended Forecast for

Merrimack NH

  • Tonight

    Tonight: Mostly clear, with a low around 20. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 38. West wind 5 to 10 mph.

    High: 38 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 20. Southeast wind around 5 mph becoming calm.

    Low: 20 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 46. Calm wind becoming south around 5 mph in the afternoon.

    High: 46 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain and snow before 11am, then a chance of rain. Partly sunny, with a high near 49. Chance of precipitation is 40%.

    High: 49 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.

    Low: 32 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 20. West wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 38. West wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 20. Southeast wind around 5 mph becoming calm.
Thursday
Mostly sunny, with a high near 46. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 27. Calm wind.
Friday
Partly sunny, with a high near 52.
Friday Night
Partly cloudy, with a low around 30.
Saturday
A chance of rain and snow before 11am, then a chance of rain. Partly sunny, with a high near 49. Chance of precipitation is 40%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Sunday
A chance of rain and snow before 11am, then a chance of rain. Mostly cloudy, with a high near 52. Chance of precipitation is 40%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Monday
Sunny, with a high near 46.
Monday Night
Mostly clear, with a low around 21.
Tuesday
Sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrimack NH
 42.86°N 71.49°W (Elev. 118 ft)
Last Update:
8:01 pm EDT Mar 17, 2026
Forecast Valid:
9pm EDT Mar 17, 2026-6pm EDT Mar 24, 2026
 
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