Alton, New Hampshire Weather
Alton, New Hampshire — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast, soil and crop conditions for Alton, Belknap County.
Tides, marine forecast and fishing conditions near Alton. Tide source:
Full aviation weather for Alton is published on the Laconia Municipal Airport (KLCI) page, 21 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 6 airfields within reach of Alton have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Alton: Skyhaven Airport (KDAW) 30 km · Concord Municipal Airport (KCON) 36 km · Sanford Seacoast Regional Airport (KSFM) 42 km · Newfound Valley Airport (K2N2) 46 km · Portsmouth International Airport at Pease (KPSM) 52 km
Conditions reported at KLCI describe the airfield itself. Weather 21 km away can differ, particularly in terrain or near the coast. For conditions at Alton specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for Alton.
About Alton, New Hampshire
Alton unfolds as a place where the land breathes with the quiet dignity of New Hampshire's Lakes Region. It lies 15.9 miles north-west of Rochester, NH (from Rochester, NH: bearing 310°T), and is situated 8.8 miles west-north-west of Farmington. Rolling hills, softened by a generous spread of deciduous trees and punctuated by the occasional sturdy pine, define its contours, their slopes descending toward the shimmering expanse of Lake Winnipesaukee. The air here, especially in the late afternoon, carries a scent of damp earth and pine needles, a subtle perfume that clings to the skin, mingling with the distant murmur of water. Cobblestone-lined streets, where they exist, are more a memory than a rule, giving way to paved roads that curve with the natural inclinations of the terrain, leading the eye toward vistas of water and sky that seem to hold their breath in the fading light. The story of Alton is one of resilience and adaptation, its roots reaching back to early colonial settlement, a time when the land was coaxed into yielding sustenance. Historically, logging and agriculture were the keystones of its economy, the timber harvested from its abundant forests fueling distant industries and the fertile soil supporting generations of farmers. While those days have largely receded, the spirit of self-sufficiency and a connection to the natural world persist, now finding expression in a thriving tourism sector centered around the lake’s recreational allure. Boat ramps and marinas dot the shoreline, hinting at the lively summer days filled with the splash of oars and the hum of boat engines, a stark yet harmonious contrast to the hushed, snow-laden landscapes of winter that also hold their own unique, stark beauty for Alton.
Live animated radar for Alton and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | Alton, Belknap County, New Hampshire |
| Coordinates | 43.452302°N, 71.217567°W |
| Timezone | Eastern Time |
| ZIP Code(s) | 03809 |
| Area Code | 603 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Alton, New Hampshire Weather Page
This page provides live weather conditions and forecasts for Alton, New Hampshire, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Alton includes coordinates 43.452302°N, 71.217567°W, situated in Belknap County. ZIP code 03809. Telephone area code: 603. Timezone: Eastern Time.
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
