Alton, NH Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Alton, NH in one place.
Sunny, with a high near 92.
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: Jul 12, 2026 7:55 AM EDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Alton, NH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 7:55 AM EDT
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in Alton
Tuesday looks like the warmest upcoming period in Alton at 92 degrees F.
Friday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 15 mph W.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Jul 12, 2026 7:55 AM 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 75.
Mostly sunny, with a high near 88.
Partly cloudy, with a low around 65.
Sunny, with a high near 83.
Mostly clear, with a low around 61.
Sunny, with a high near 80.
Mostly clear, with a low around 60.
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
92°F |
10 to 15 mph
W
|
|
Tuesday Night
Jul 14
|
Partly Cloudy
|
75°F |
15 mph
W
|
|
Wednesday
Jul 15
|
Mostly Sunny
|
88°F |
15 mph
W
|
|
Wednesday Night
Jul 15
|
Partly Cloudy
|
65°F |
5 to 15 mph
W
|
|
Thursday
Jul 16
|
Sunny
|
83°F |
5 to 15 mph
W
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
61°F |
5 to 10 mph
W
|
|
Friday
Jul 17
|
Sunny
|
80°F |
5 to 10 mph
W
|
|
Friday Night
Jul 17
|
Mostly Clear
|
60°F |
0 to 10 mph
NW
|
|
Saturday
Jul 18
|
Mostly Sunny then Slight Chance Rain Showers
|
80°F |
5 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Alton.
