Alton, NH Weather Forecast
Local 7-day forecast
Light Rain
Track current conditions, temperature changes, wind, and the full daily outlook for Alton, NH in one place.
Rain before 2pm, then a slight chance of rain showers between 2pm and 5pm. Mostly cloudy, with a high near 51. Northeast wind 10 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 90%.
Local Weather Overview
This forecast page for Alton, 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: May 28, 2026 6:15 PM EDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Alton, NH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 28, 2026 6:15 PM EDT
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in Alton
Sunday looks like the warmest upcoming period in Alton at 65 degrees F.
Saturday Night is the coolest period ahead with temperatures near 39 degrees F.
The strongest winds are forecast for Saturday at about 10 to 20 mph NE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- May 28, 2026 6:15 PM EDT
- Coverage
- 5 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
Partly cloudy, with a low around 39.
Mostly sunny, with a high near 65.
A slight chance of showers and thunderstorms between 8pm and 9pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Chance of precipitation is 40%.
Rain showers likely before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
A chance of rain showers. Partly sunny, with a high near 59. Chance of precipitation is 50%.
A chance of rain showers before 5am. Mostly cloudy, with a low around 43. Chance of precipitation is 50%.
A slight chance of rain showers after 8am. Mostly sunny, with a high near 64.
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 46.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Light Rain
|
51°F |
10 to 20 mph
NE
|
|
Saturday Night
May 30
|
Partly Cloudy
|
39°F |
0 to 5 mph
N
|
|
Sunday
May 31
|
Mostly Sunny
|
65°F |
5 to 10 mph
NW
|
|
Sunday Night
May 31
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
46°F |
0 to 5 mph
W
|
|
Monday
Jun 1
|
Rain Showers Likely
|
62°F |
5 to 10 mph
NW
|
|
Monday Night
Jun 1
|
Showers And Thunderstorms Likely
|
43°F |
0 to 5 mph
N
|
|
Tuesday
Jun 2
|
Chance Rain Showers
|
59°F |
0 to 10 mph
N
|
|
Tuesday Night
Jun 2
|
Chance Rain Showers
|
43°F |
0 to 10 mph
NE
|
|
Wednesday
Jun 3
|
Slight Chance Rain Showers
|
64°F |
5 to 10 mph
N
|
|
Wednesday Night
Jun 3
|
Slight Chance Rain Showers then Partly Cloudy
|
46°F |
0 to 5 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Alton.
