Alton, New Hampshire Weather
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Weather Forecast for Alton, New Hampshire : Belknap County
Issued: 6:42 am EDT Jun 27, 2025 Latitude: 43.4523018 Longitude: -71.2175671 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Sunny on Today 30% chance of rain on Tonight 70% chance of thunderstorms on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday 70% chance of thunderstorms on Tuesday Sunny on Wednesday Mostly Sunny on Thursday
High: 71°F Low: 56°F High: 63°F High: 75°F High: 87°F High: 83°F High: 82°F High: 80°F
Low: 61°F Low: 60°F Low: 67°F Low: 66°F Low: 62°F  
Mostly Sunny Rain Thunderstorms Mostly Sunny Mostly Sunny Thunderstorms Sunny Mostly Sunny
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Current Conditions at
LACONIA - (KLCI)
54°
Clear
as of 5:56 AM EDST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CONCORD - (KCON)
57°
Clear
Fog
as of 6:37 AM EDST
Rel. Humidity: 93%
Dew Point: 55°F
Visibility: 1/4 Miles
Pressure: 30.28 in.
Flight Rule: IFR
Wind Data
Calm
Current Conditions at
SANFORD MUNICIPAL - (KSFM)
48°
Clear
Mist
as of 5:56 AM EDST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 4 Miles
Pressure: 30.28 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MANCHESTER - (KMHT)
55°
Mostly Cloudy
as of 5:53 AM EDST
Rel. Humidity: 100%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 200ft, Few at 12000ft, Broken at 25000ft
Mostly Sunny on Today Today... Mostly sunny, with a high near 71. Light and variable wind becoming southeast 5 to 10 mph in the morning.
30% chance of rain Tonight Tonight... A 30 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 56. Southeast wind around 5 mph. New precipitation amounts between a tenth and quarter of an inch possible.
70% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Cloudy, with a high near 63. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
50% chance of thunderstorms Saturday Night Saturday Night... A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 61. Northeast wind around 5 mph becoming southwest after midnight. Chance of precipitation is 50%.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 75. Northwest wind 5 to 10 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 60.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 87.
40% chance of rain Monday Night Monday Night... A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 67.
70% chance of thunderstorms Tuesday Tuesday... Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 70%.
30% chance of thunderstorms Tuesday Night Tuesday Night... A chance of thunderstorms before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunny on Wednesday Wednesday... Sunny, with a high near 82.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 62.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 80.
Current Radar Image


Sun Almanac for Alton, New Hampshire
Sunrise: 05:06 AM
Sunset: 8:30 PM
Civil Sunrise:04:31 AM
Civil Sunset: 9:06 PM
Nautical Sunrise: 03:44 AM
Nautical Sunset: 9:52 PM
Astro Sunrise: 02:46 AM
Astro Sunset: 10:50 PM
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