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.

Mostly Cloudy

55°F

13°C

Humidity 96%
Wind Speed Calm
Barometer 29.82 in (1011.0 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 15 Apr 5:53 am EDT
Extended Forecast for

Merrimack NH

  • Today

    Today: Scattered showers between 3pm and 5pm, then scattered showers and thunderstorms after 5pm. Partly sunny, with a high near 73. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely. Areas of fog after 11pm. Otherwise, mostly cloudy, with a low around 50. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers
    Likely and
    Areas Fog

  • Thursday

    Thursday: Scattered showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 71. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 70. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, mainly before 7pm. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

Today
Scattered showers between 3pm and 5pm, then scattered showers and thunderstorms after 5pm. Partly sunny, with a high near 73. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely. Areas of fog after 11pm. Otherwise, mostly cloudy, with a low around 50. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Scattered showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 71. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 53. Calm wind.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 70. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
Showers likely, mainly before 7pm. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 64.
Sunday Night
A chance of rain showers before 5am, then a chance of rain and snow showers. Mostly cloudy, with a low around 35. Chance of precipitation is 50%.
Monday
A chance of rain and snow showers. Partly sunny, with a high near 49. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrimack NH
 42.86°N 71.49°W (Elev. 118 ft)
Last Update:
2:38 am EDT Apr 15, 2026
Forecast Valid:
6am EDT Apr 15, 2026-6pm EDT Apr 21, 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