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.

Mostly Cloudy

34°F

1°C

Humidity 44%
Wind Speed SW 8 mph
Barometer 30.21 in (1023.5 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 19 Mar 1:56 pm EDT
Extended Forecast for

Alton Bay NH

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 39. South wind around 10 mph.

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 26. South wind around 5 mph becoming southwest after midnight.

    Low: 26 °F

    Decreasing
    Clouds

  • Friday

    Friday: A slight chance of rain and snow between 2pm and 3pm, then rain likely. Increasing clouds, with a high near 45. Light and variable wind becoming south 5 to 10 mph in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 45 °F

    Mostly Sunny
    then
    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain, mainly before midnight. Low around 33. South wind around 5 mph becoming west after midnight. Chance of precipitation is 80%.

    Low: 33 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 45. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and snow before 3pm, then a chance of rain between 3pm and 4pm, then a chance of rain and snow after 4pm. Mostly cloudy, with a high near 41. Chance of precipitation is 40%.

    High: 41 °F

    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow likely, becoming all snow after 3am. Mostly cloudy, with a low around 27. Chance of precipitation is 70%.

    Low: 27 °F

    Rain/Snow
    Likely

  • Monday

    Monday: A 50 percent chance of snow. Mostly cloudy, with a high near 38.

    High: 38 °F

    Chance Snow

Detailed Forecast

This Afternoon
Partly sunny, with a high near 39. South wind around 10 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 26. South wind around 5 mph becoming southwest after midnight.
Friday
A slight chance of rain and snow between 2pm and 3pm, then rain likely. Increasing clouds, with a high near 45. Light and variable wind becoming south 5 to 10 mph in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday Night
Rain, mainly before midnight. Low around 33. South wind around 5 mph becoming west after midnight. Chance of precipitation is 80%.
Saturday
Mostly sunny, with a high near 45. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
A chance of rain and snow before 3pm, then a chance of rain between 3pm and 4pm, then a chance of rain and snow after 4pm. Mostly cloudy, with a high near 41. Chance of precipitation is 40%.
Sunday Night
Rain and snow likely, becoming all snow after 3am. Mostly cloudy, with a low around 27. Chance of precipitation is 70%.
Monday
A 50 percent chance of snow. Mostly cloudy, with a high near 38.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Mostly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alton Bay NH
 43.48°N 71.22°W (Elev. 889 ft)
Last Update:
2:28 pm EDT Mar 19, 2026
Forecast Valid:
2pm EDT Mar 19, 2026-6pm EDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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