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

66°F

19°C

Humidity 93%
Wind Speed Calm
Barometer 30.06 in (1017.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 16 Jul 2:56 am EDT
Extended Forecast for

Alton Bay NH

  • Overnight

    Overnight: Widespread haze after 5am. Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Haze

  • Wednesday

    Wednesday: Widespread haze before 8am. Sunny and hot, with a high near 92. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 92 °F

    Haze then
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Partly Cloudy

  • Thursday

    Thursday: Scattered showers and thunderstorms after 9am. Partly sunny, with a high near 87. Heat index values as high as 96. South wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 87 °F

    Scattered
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 9pm. Partly cloudy, with a low around 69. Southwest wind around 5 mph.

    Low: 69 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Widespread haze after 5am. Mostly clear, with a low around 67. Calm wind.
Wednesday
Widespread haze before 8am. Sunny and hot, with a high near 92. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.
Thursday
Scattered showers and thunderstorms after 9am. Partly sunny, with a high near 87. Heat index values as high as 96. South wind 5 to 10 mph. Chance of precipitation is 50%.
Thursday Night
A 30 percent chance of showers before 9pm. Partly cloudy, with a low around 69. Southwest wind around 5 mph.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 62.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alton Bay NH
 43.49°N 71.25°W (Elev. 505 ft)
Last Update:
1:36 am EDT Jul 16, 2025
Forecast Valid:
3am EDT Jul 16, 2025-6pm EDT Jul 22, 2025
 
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