Alton, NH Weather Forecast
Belknap County, New Hampshire
Live radar, warnings and storm tracking for Alton, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Alton
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Alton, NH at a glance
Alton is home to about 6,042 people in Belknap County, across 64 square miles. It ranks 61st by population of 125 places in New Hampshire with a forecast here. The nearest neighbour with its own forecast is New Durham, 5 miles away.
- County
- Belknap County
- Population
- 6,042 2023 est.
- Land area
- 64 sq mi
- People per sq mi
- 95
- Forecast point
- 43.4883°N, 71.2406°W
How well can the network see Alton?
The nearest Doppler radar is KGYX (Portland, ME), to the ENE. Its lowest scan passes about 4,200 ft above Alton. The beam is above the lowest few thousand feet here, so a warning for Alton can come before anything looks dramatic on radar.
The closest weather station is KLCI (Laconia Muni). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Alton
- New Durham, NH5 mi
- Gilford, NH7 mi
- Gilmanton, NH7 mi
- Wolfeboro, NH9 mi
- Barnstead, NH10 mi
- Milton, NH12 mi
- Belmont, NH12 mi
- Farmington, NH12 mi
Elsewhere in New Hampshire
ManchesterNashuaConcordDerryRochesterDoverAll New Hampshire forecasts →