Alton Bay, NH 7-Day Weather Forecast

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Alton Bay, NH 7-Day Weather Forecast

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Alton Bay NH weather  - Clear - 6°F
Clear
6°F
Updated 12:19 am
Feels Like 1°F
Humidity 63%
Wind N 0 mph
Barometer  30 in
Dew Point -4°F
Alton Bay NH weather  - Clear - -14°C
Clear
-14°C
Updated 12:19 am
Feels Like -17°C
Humidity 63%
Wind N 0 km/h
Barometer  101.6 kPa
Dew Point -20°C
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Alton Bay Weather Forecast

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Alton Bay, NH Weather Forecast Date: 651 PM EST Mon Mar 02 2026

Weather forecast for Alton Bay, NH


Tonight
Alton Bay NH Weather for Tonight - Mostly Clear
Lo: 5°F
Lo: -15°C
Tonight... Mostly clear. Lows around 5 above. Light and variable winds.
Tue
Alton Bay NH Weather for Tuesday - Snow
Hi: 35°FHi: 2°C
Lo: 25°F
Lo: -4°C
Tuesday... Mostly sunny in the morning, then mostly cloudy with snow likely in the afternoon. Snow accumulation up to 1 inch. Highs in the mid 30s. Light and variable winds, becoming south around 10 mph with gusts up to 20 mph in the afternoon. Chance of snow 70%.
Wed
Alton Bay NH Weather for Wednesday - Chance Of Snow
Hi: 49°FHi: 9°C
Lo: 21°F
Lo: -6°C
Wednesday... Mostly sunny. A chance of snow in the morning. Highs in the upper 40s. Light and variable winds. Chance of snow 30%.
Thu
Alton Bay NH Weather for Thursday - Partly Sunny
Hi: 45°FHi: 7°C
Lo: 29°F
Lo: -2°C
Thursday... Partly sunny. Highs in the mid 40s.
Fri
Alton Bay NH Weather for Friday - Snow
Hi: 35°FHi: 2°C
Lo: 29°F
Lo: -2°C
Friday... Snow and freezing rain likely. A chance of rain in the afternoon. Highs in the mid 30s. Chance of precipitation 70%.
Sat
Alton Bay NH Weather for Saturday - Chance Of Snow
Hi: 49°FHi: 9°C
Lo: 39°F
Lo: 4°C
Saturday... A chance of snow in the morning. Mostly cloudy with a chance of rain. Highs in the upper 40s. Chance of precipitation 40%.
Sun
Alton Bay NH Weather for Sunday - Chance Of Rain
Hi: 55°FHi: 13°C
Lo: 35°F
Lo: 2°C
Sunday... Partly sunny. A chance of rain in the afternoon. Highs in the mid 50s. Chance of rain 30%.

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