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.

Light Rain Fog

41°F

5°C

Humidity 100%
Wind Speed Calm
Barometer 30.53 in (1034.0 mb)
Dewpoint 41°F (5°C)
Visibility 0.50 mi
Last update 24 Sep 4:56 am EDT
Extended Forecast for

Alton Bay NH

  • Today

    Today: Patchy fog before 8am. Otherwise, sunny, with a high near 65. Northeast wind 5 to 10 mph.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 46. Calm wind becoming north around 5 mph after midnight.

    Low: 46 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 66. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A 40 percent chance of rain after 1am. Increasing clouds, with a low around 51. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain likely, mainly after 9am. Mostly cloudy, with a high near 58. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 58 °F

    Rain Likely

  • Saturday Night

    Saturday Night: Rain. Low around 50. Chance of precipitation is 80%.

    Low: 50 °F

    Rain

  • Sunday

    Sunday: Rain. High near 58. Chance of precipitation is 80%.

    High: 58 °F

    Rain

  • Sunday Night

    Sunday Night: Showers. Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before noon. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.

    High: 58 °F

    Showers
    Likely

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 65. Northeast wind 5 to 10 mph.
Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 46. Calm wind becoming north around 5 mph after midnight.
Friday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 66. Northeast wind around 10 mph, with gusts as high as 20 mph.
Friday Night
A 40 percent chance of rain after 1am. Increasing clouds, with a low around 51. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Rain likely, mainly after 9am. Mostly cloudy, with a high near 58. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Saturday Night
Rain. Low around 50. Chance of precipitation is 80%.
Sunday
Rain. High near 58. Chance of precipitation is 80%.
Sunday Night
Showers. Low around 49. Chance of precipitation is 80%.
Monday
Showers likely, mainly before noon. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 70.
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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:
5:22 am EDT Sep 24, 2026
Forecast Valid:
5am EDT Sep 24, 2026-6pm EDT Sep 30, 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