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Alton, NH 03809 Weather

It is 63°F and clear in Alton, NH 03809, observed at 12:50 PM EDT. Today: Sunny, high 66°F, low 51°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

Alton, NH 03809 current weather

63°F

Clear

H 66° / L 51°Feels like 63°

  • No rain expected in the next 12 hours

Observed at Laconia, Laconia Municipal Airport (12.8 mi away), 10/29/2026, 12:50 PM EDT

Hourly forecast

NWS, updated 10/29/2026, 3:11 AM PT

  1. Now62°
  2. 2 PM65°
  3. 3 PM65°
  4. 4 PM66°
  5. 5 PM64°
  6. 6 PM61°
  7. 7 PM59°
  8. 8 PM54°
  9. 9 PM54°
  10. 10 PM54°
  11. 11 PM53°
  12. 12 AM53°Fri
  13. 1 AM54°13%
  14. 2 AM54°11%
  15. 3 AM53°
  16. 4 AM53°
  17. 5 AM53°
  18. 6 AM52°
  19. 7 AM51°
  20. 8 AM51°
  21. 9 AM53°
  22. 10 AM57°
  23. 11 AM59°
  24. 12 PM60°
  25. 1 PM60°
  26. 2 PM60°
  27. 3 PM59°
  28. 4 PM59°
  29. 5 PM57°
  30. 6 PM53°
  31. 7 PM50°
  32. 8 PM46°
  33. 9 PM45°
  34. 10 PM44°
  35. 11 PM43°
  36. 12 AM42°Sat
  37. 1 AM42°
  38. 2 AM41°
  39. 3 AM40°
  40. 4 AM39°
  41. 5 AM38°
  42. 6 AM36°
  43. 7 AM36°
  44. 8 AM36°
  45. 9 AM39°
  46. 10 AM43°
  47. 11 AM46°
  48. 12 PM48°

10-day forecast

Tap a day for details

  • Today10/2913% chance of precipitationLow 51°High 66°

    This Afternoon: Sunny, with a high near 66. Southwest wind 5 to 10 mph.

    Tonight: Partly cloudy, with a low around 51. Southwest wind 5 to 10 mph.

    Sunny
  • Fri10/30Low 36°High 61°

    Friday: Sunny, with a high near 61. West wind 10 to 15 mph, with gusts as high as 30 mph.

    Friday Night: Mostly clear, with a low around 36. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Sunny
  • Sat10/31Low 28°High 51°

    Saturday: Sunny, with a high near 51. Northwest wind 5 to 10 mph.

    Saturday Night: Mostly clear, with a low around 28.

    Sunny
  • Sun11/1Low 36°High 57°

    Sunday: Sunny, with a high near 57.

    Sunday Night: Mostly clear, with a low around 36.

    Sunny
  • Mon11/2Low 40°High 62°

    Monday: Mostly sunny, with a high near 62.

    Monday Night: Partly cloudy, with a low around 40.

    Mostly Sunny
  • Tue11/322% chance of precipitationLow 39°High 58°

    Tuesday: Partly sunny, with a high near 58.

    Tuesday Night: A slight chance of rain showers after 10pm. Mostly cloudy, with a low around 39.

    Partly Sunny
  • Wed11/436% chance of precipitationLow 42°High 59°

    Wednesday: A chance of rain showers. Partly sunny, with a high near 59. Chance of precipitation is 30%.

    Wednesday Night: A chance of rain showers. Mostly cloudy, with a low around 42.

    Chance Rain Showers
  • Thu11/5Model blend54% chance of precipitationLow 49°High 66°

    Thursday: Mostly cloudy, slight chance of rain. High near 66°. Low that night near 49°. About 0.32 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Fri11/6Model blend53% chance of precipitationLow 44°High 65°

    Friday: Chance of rain. High near 65°. Low that night near 44°. About 1.19 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sat11/7Model blend41% chance of precipitationLow 36°High 60°

    Saturday: Chance of rain. High near 60°. Low that night near 36°. About 0.72 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 43.457, -71.211 from the NWS GYX office, updated 10/29/2026, 3:11 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KDAW (Rochester/Skyhaven Arpt, 19 mi), model run 10/29/2026, 10:00 AM EDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now62°Sunny1%10 mph
  2. 2 PM65°Sunny1%10 mph
  3. 3 PM65°Sunny1%10 mph
  4. 4 PM66°Sunny1%10 mph
  5. 5 PM64°Sunny1%5 mph
  6. 6 PM61°Mostly Clear1%10 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Alton, NH 03809 right now?
The latest observation from Laconia, Laconia Municipal Airport was 63°F and clear, reported at 10/29/2026, 12:50 PM EDT.
What is the high temperature today in Alton, NH 03809?
The National Weather Service forecast for this afternoon calls for a high near 66°F. Sunny.
Will it rain in Alton, NH 03809 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Alton, NH 03809?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 5 to Nov 7) come from the NOAA National Blend of Models, with highs of 60°F to 66°F and up to a 54% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Alton, NH 03809 today?
Sunrise is about 7:16 AM EDT and sunset is about 5:40 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Alton, NH 03809?
At Lakeport 2, the 1991 to 2020 normal high in October is 60°F and the normal low is 40°F.

Nearby hazards

New Hampshire hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: 131023A Fire (0 acres), 131015A Fire (0 acres)

UV and air quality forecast

EPA and AirNow

AQI forecast today (Belknap County)
51ModeratePM2.5
AQI forecast tomorrow (Belknap County)
GoodPM2.5

UV index guide · Air quality

Drought

By county

Belknap County, week of 10/27/2026

64% of the county is in moderate drought or worse.

Tides nearby

NOAA tide stations

Sun and moon

Local time, center of the area

Sunrise
7:16 AM
Sunset
5:40 PM
Daylight
10 hr 24 min
Moon
Waning Gibbous 86% lit
First light (civil dawn)
6:47 AM
Last light (civil dusk)
6:09 PM
Moonrise
7:55 PM
Moonset
11:36 AM

Normal October weather

Climate

Normal October high 60°, low 40°, precipitation 4.83 in for the month. 1991 to 2020 normals at Lakeport 2, 14 mi away.

Other places nearby

Data sources

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About this data

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