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.

Overcast

32°F

0°C

Humidity 69%
Wind Speed W 3 mph
Barometer 30.07 in (1018.8 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 20 Mar 3:56 am EDT
Extended Forecast for

Alton Bay NH

  • Today

    Today: Rain, mainly after 3pm. High near 47. Light and variable wind becoming south 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Mostly Sunny
    then Rain

  • Tonight

    Tonight: Rain, mainly before 9pm. Low around 33. South wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 33 °F

    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 27. Northwest wind around 5 mph.

    Low: 27 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of snow before 10am, then rain and snow likely. Mostly cloudy, with a high near 40. South wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Rain and snow likely, becoming all snow after midnight. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.

    Low: 27 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Monday

    Monday: A 40 percent chance of snow. Mostly cloudy, with a high near 36.

    High: 36 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

Detailed Forecast

Today
Rain, mainly after 3pm. High near 47. Light and variable wind becoming south 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain, mainly before 9pm. Low around 33. South wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 43. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Increasing clouds, with a low around 27. Northwest wind around 5 mph.
Sunday
A chance of snow before 10am, then rain and snow likely. Mostly cloudy, with a high near 40. South wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday Night
Rain and snow likely, becoming all snow after midnight. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Monday
A 40 percent chance of snow. Mostly cloudy, with a high near 36.
Monday Night
Mostly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 20.
Thursday
A chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Alton Bay NH
 43.48°N 71.22°W (Elev. 889 ft)
Last Update:
2:12 am EDT Mar 20, 2026
Forecast Valid:
4am EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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