Alton Bay, NH Weather Forecast
Local 7-day forecast
Light Rain
Track current conditions, temperature changes, wind, and the full daily outlook for Alton Bay, NH in one place.
Patchy fog and a slight chance of rain showers before 7am, then rain and patchy fog. Cloudy, with a high near 65. North wind around 0 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Alton Bay, NH is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Nov 6, 2026 7:44 AM EST.
The active forecast window currently covers Nov 6 to Nov 12, 2026 for Alton Bay, NH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 12, 2026
- Latest sync
- Nov 6, 2026 7:44 AM EST
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in Alton Bay
Today looks like the warmest upcoming period in Alton Bay at 65 degrees F.
Thursday Night is the coolest period ahead with temperatures near 27 degrees F.
The strongest winds are forecast for Sunday at about 10 to 15 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 6, 2026 7:44 AM EST
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- GYX
- Radar station
- KGYX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain and patchy fog. Cloudy, with a low around 47. Northeast wind 0 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Rain likely. Cloudy, with a high near 54. Northeast wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain. Mostly cloudy, with a low around 40. North wind 5 to 10 mph. Chance of precipitation is 80%.
Rain likely before 10am. Partly sunny, with a high near 52. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Partly cloudy, with a low around 38.
Partly sunny, with a high near 51.
Partly cloudy, with a low around 34.
Mostly sunny, with a high near 55.
Partly cloudy, with a low around 36.
A slight chance of rain between 4pm and 5pm. Mostly sunny, with a high near 51.
Partly cloudy, with a low around 28.
Mostly sunny, with a high near 48.
Partly cloudy, with a low around 27.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Nov 6
|
Light Rain
|
65°F |
0 mph
|
|
Tonight
Nov 6
|
Light Rain
|
47°F |
0 to 10 mph
NE
|
|
Saturday
Nov 7
|
Light Rain Likely
|
54°F |
5 to 10 mph
NE
|
|
Saturday Night
Nov 7
|
Light Rain
|
40°F |
5 to 10 mph
N
|
|
Sunday
Nov 8
|
Light Rain Likely then Partly Sunny
|
52°F |
10 to 15 mph
W
|
|
Sunday Night
Nov 8
|
Partly Cloudy
|
38°F |
5 to 10 mph
W
|
|
Monday
Nov 9
|
Partly Sunny
|
51°F |
10 to 15 mph
W
|
|
Monday Night
Nov 9
|
Partly Cloudy
|
34°F |
10 to 15 mph
W
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
55°F |
5 to 15 mph
W
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
36°F |
10 mph
W
|
|
Veterans Day
Nov 11
|
Mostly Sunny then Slight Chance Light Rain
|
51°F |
5 to 15 mph
W
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
28°F |
5 mph
W
|
|
Thursday
Nov 12
|
Mostly Sunny
|
48°F |
5 mph
W
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
27°F |
0 to 5 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Alton Bay.