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Alton Bay, New Hampshire Weather Forecast
Alton Bay, New Hampshire Weather
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Weather Forecast for Alton Bay, New Hampshire : Belknap County
Issued: 6:22 am EST Nov 5, 2025 Latitude: 43.4686905 Longitude: -71.2320118 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Veterans Day
20% chance of rain on Today 80% chance of rain on Tonight Mostly Sunny on Thursday Partly Sunny on Friday 60% chance of  on Saturday 50% chance of rain on Sunday 40% chance of  on Monday Mostly Sunny on Veterans Day
High: 48°F Low: 36°F High: 44°F High: 47°F High: 57°F High: 50°F High: 44°F High: 39°F
Low: 27°F Low: 41°F Low: 35°F Low: 36°F Low: 27°F  
Rain Rain Mostly Sunny Partly Sunny Partly Sunny Rain Partly Sunny Mostly Sunny
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Current Conditions at
LACONIA - (KLCI)
36°
Clear
as of 5:56 AM EST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
7 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
CONCORD - (KCON)
27°
Clear
as of 5:51 AM EST
Rel. Humidity: 92%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SANFORD MUNICIPAL - (KSFM)
34°
Clear
as of 5:56 AM EST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
6 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
MANCHESTER - (KMHT)
30°
Mostly Clear
as of 5:53 AM EST
Rel. Humidity: 86%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
3 MPH
130° Southeast
Cloud Level(s): Few at 25000ft
20% chance of rain Today Today... A slight chance of rain before 11am, then a slight chance of rain after 4pm. Cloudy, with a high near 48. West wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 20%.

80% chance of rain Tonight Tonight... Rain, mainly before 4am. Low around 36. Breezy, with a southeast wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 44. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 45 mph.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 27. West wind 5 to 10 mph, with gusts as high as 20 mph.

Partly Sunny on Friday Friday... Partly sunny, with a high near 47. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

80% chance of rain Friday Night Friday Night... Showers. Low around 41. Chance of precipitation is 80%.

60% chance of  Saturday Saturday... Showers likely, mainly before 8am. Partly sunny, with a high near 57. Chance of precipitation is 60%.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 35.

50% chance of rain Sunday Sunday... A 50 percent chance of showers after 8am. Mostly cloudy, with a high near 50.

60% chance of rain Sunday Night Sunday Night... Showers likely, mainly before 2am. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.

40% chance of  Monday Monday... A 40 percent chance of showers. Partly sunny, with a high near 44.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 27.

Mostly Sunny on Veterans Day Veterans Day... Mostly sunny, with a high near 39.

Current Radar Image


Sun Almanac for Alton Bay, New Hampshire
Sunrise: 06:26 AM
Sunset: 4:31 PM
Civil Sunrise:05:56 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 05:22 AM
Nautical Sunset: 5:35 PM
Astro Sunrise: 04:49 AM
Astro Sunset: 6:08 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.