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Alton, NH Weather Forecast
Alton, NH Weather Forecast Dated: 202 PM Sun Aug 30 2026 (Alton Time)
Expect a mild stretch with more clouds than sun and frequent chances of rain over the next two weeks. generally humid conditions and no major pressure swings will dominate.
Sunday, August 30, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
82°F 28°C
Overcast
Early-Evening
73°F 23°C
Overcast
Very warm with overcast skies, steady humidity and barometric pressure falling. Winds shifting from WSW to WNW at 9 mph 14 km/h.
Monday, August 31, 2026
Mid-Morning
67°F 19°C
Sunny
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
68°F 20°C
Sunny
Warm with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds shifting from NW to S at 4 mph 6 km/h.
Tuesday, September 1, 2026
Mid-Morning
58°F 14°C
Scattered Showers
Mid-Afternoon
57°F 14°C
Light Drizzle
Early-Evening
58°F 14°C
Fog
Cool with a mix of sun and clouds, steady humidity and steady pressure.
Wednesday, September 2, 2026
Mid-Morning
58°F 14°C
Light Fog
Mid-Afternoon
59°F 15°C
Scattered Showers
Early-Evening
58°F 15°C
Light Fog
Cool with a mix of sun and clouds, steady humidity and steady pressure. A few spotty showers; otherwise dry.
Thursday, September 3, 2026
Mid-Morning
58°F 14°C
Light Showers
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
56°F 13°C
Fog
Warm with a mix of sun and clouds, steady humidity and steady pressure. Winds shifting from E to NNE at 6 mph 9 km/h.
Friday, September 4, 2026
Mid-Morning
60°F 16°C
Scattered Showers
Mid-Afternoon
76°F 24°C
Sunny
Early-Evening
67°F 19°C
Fog
Warm with a mix of sun and clouds, steady humidity and barometric pressure falling.
Saturday, September 5, 2026
Mid-Morning
66°F 19°C
Light Fog
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
69°F 20°C
Sunny
Warm with a mix of sun and clouds, lower humidity and steady pressure. Winds shifting from SW to WNW at 9 mph 14 km/h.
Sunday, September 6, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
70°F 21°C
Overcast
Warm with overcast skies, lower humidity and steady pressure.
Monday, September 7, 2026
Mid-Morning
61°F 16°C
Scattered Showers
Mid-Afternoon
60°F 16°C
Cloudy
Early-Evening
59°F 15°C
Sunny
Cool with mostly cloudy skies, lower humidity and steady pressure.
Tuesday, September 8, 2026
Mid-Morning
58°F 14°C
Overcast
Mid-Afternoon
70°F 21°C
Overcast
Early-Evening
63°F 17°C
Scattered Showers
Warm with overcast skies, steady humidity and steady pressure. Winds W at 8 mph 13 km/h.
Wednesday, September 9, 2026
Mid-Morning
58°F 15°C
Partly Cloudy
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
57°F 14°C
Sunny
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds shifting from WNW to W at 7 mph 11 km/h.
Thursday, September 10, 2026
Mid-Morning
57°F 14°C
Scattered Showers
Mid-Afternoon
66°F 19°C
Scattered Showers
Early-Evening
58°F 14°C
Scattered Showers
Cool with a mix of sun and clouds, increasing humidity and steady pressure. A stray shower possible.
Friday, September 11, 2026
Mid-Morning
51°F 11°C
Overcast
Mid-Afternoon
60°F 15°C
Overcast
Early-Evening
55°F 13°C
Scattered Showers
Cool with overcast skies, steady humidity and barometric pressure rising.
Saturday, September 12, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
70°F 21°C
Overcast
Early-Evening
62°F 17°C
Overcast
Warm with overcast skies, steady humidity and steady pressure. Winds shifting from SW to ESE at 4 mph 6 km/h.
Alton, NH Weather Radar Map
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