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.

A Few Clouds

44°F

7°C

Humidity 60%
Wind Speed E 12 mph
Barometer 29.99 in (1015.9 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 11 Mar 12:56 pm EDT
Extended Forecast for

Alton Bay NH

  • This Afternoon

    This Afternoon: A 50 percent chance of showers. Patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 41. East wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Patchy fog. Temperature falling to near 39 by 8pm, then rising to around 52 during the remainder of the night. East wind 5 to 10 mph becoming south after midnight. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F⇑

    Chance
    Showers and
    Patchy Fog
    then Showers
    and Patchy
    Fog

  • Thursday

    Thursday: A chance of rain and snow showers before 5pm, then a slight chance of snow showers. Mostly cloudy, with a temperature falling to around 32 by 5pm. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F⇓

    Chance
    Showers then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 23. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Gradual
    Clearing

  • Friday

    Friday: A 30 percent chance of rain after 5pm. Mostly sunny, with a high near 39. West wind 5 to 10 mph becoming south in the afternoon.

    High: 39 °F

    Sunny then
    Chance Rain

  • Friday Night

    Friday Night: A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.

    Low: 29 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Saturday

    Saturday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers. Patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 41. East wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Patchy fog. Temperature falling to near 39 by 8pm, then rising to around 52 during the remainder of the night. East wind 5 to 10 mph becoming south after midnight. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of rain and snow showers before 5pm, then a slight chance of snow showers. Mostly cloudy, with a temperature falling to around 32 by 5pm. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 23. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
A 30 percent chance of rain after 5pm. Mostly sunny, with a high near 39. West wind 5 to 10 mph becoming south in the afternoon.
Friday Night
A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 40.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 38.
Sunday Night
A chance of snow between midnight and 3am, then rain likely. Cloudy, with a low around 29. Chance of precipitation is 70%.
Monday
Rain. High near 54. Chance of precipitation is 90%.
Monday Night
Rain and snow likely. Mostly cloudy, with a low around 24. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of snow. Partly sunny, with a high near 35.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alton Bay NH
 43.48°N 71.22°W (Elev. 889 ft)
Last Update:
12:57 pm EDT Mar 11, 2026
Forecast Valid:
1pm EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation