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.

Partly Cloudy

44°F

7°C

Humidity 38%
Wind Speed Calm
Barometer 30.50 in (1034.5 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 12 Apr 8:53 am EDT
Extended Forecast for

Merrimack NH

  • Today

    Today: Increasing clouds, with a high near 58. Calm wind becoming south around 5 mph in the afternoon.

    High: 58 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Rain, mainly before 5am. Low around 42. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain

  • Monday

    Monday: A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 69. Southwest wind around 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West wind around 5 mph.

    Low: 57 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers between 8pm and 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 77.

    High: 77 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    Showers

Detailed Forecast

Today
Increasing clouds, with a high near 58. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Rain, mainly before 5am. Low around 42. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 69. Southwest wind around 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 30 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West wind around 5 mph.
Tuesday
Mostly sunny, with a high near 80. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A chance of showers between 8pm and 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, with a high near 77.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 54.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 75.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 54.
Friday
Partly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 73.
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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:
6:35 am EDT Apr 12, 2026
Forecast Valid:
8am EDT Apr 12, 2026-6pm EDT Apr 18, 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