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

Laconia, Laconia Municipal Airport (KLCI)

Lat: 43.57°NLon: 71.42°WElev: 545ft.

Fair

48°F

9°C

Humidity 37%
Wind Speed S 6 mph
Barometer 30.36 in (1028.6 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 9 Apr 9:56 pm EDT
Extended Forecast for

Alton Bay NH

  • Tonight

    Tonight: Partly cloudy, with a low around 32. South wind around 5 mph.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 63. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Showers likely, mainly between 10pm and 3am. Mostly cloudy, with a low around 39. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. West wind around 5 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers after 9pm. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 32. South wind around 5 mph.
Friday
Sunny, with a high near 63. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Showers likely, mainly between 10pm and 3am. Mostly cloudy, with a low around 39. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 49. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 29. West wind around 5 mph.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
A 50 percent chance of showers after 9pm. Mostly cloudy, with a low around 40.
Monday
A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 66.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Partly sunny, with a high near 73.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 49.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 64.
Wednesday Night
A 40 percent chance of showers. Cloudy, with a low around 47.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alton Bay NH
 43.48°N 71.22°W (Elev. 889 ft)
Last Update:
2:24 pm EDT Apr 9, 2026
Forecast Valid:
10pm EDT Apr 9, 2026-6pm EDT Apr 16, 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