Alstead

Kalawao County, New Hampshire, United States

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Current Weather

25°

Clear

Feels Like: 23°

Min: 11°

Max: 25°

The next few hours will be clear, with today reaching 25°C and dropping to 16°C. The coming days will be mostly cloudy

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Hourly Forecast

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1am
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Today
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Daylight Hours

06:36

Sunrise

18:50

Sunset

12 hours 13 minutes of sunlight today

Moon

Waxing Crescent

12:38

Moonrise

20:45

Moonset

Daily Forecast

Today

11°
25°

Thursday

12°
19°

Friday

12°
20°

Saturday

13°
21°

Sunday

13°
22°

Monday

14°
24°

Tuesday

15°
23°

Wednesday

15°
22°

Thursday

11°
19°

Friday

20°

Air Quality Data Available

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UV Index

Wear sunscreen
3 Moderate
Low Extreme

Humidity

57% Comfortable
Low High

Weather in Alstead today, September 16, 2026

Expect a mostly clear day in Alstead on September 16, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled.

The temperature range runs from about 11°C up to 25°C. The air stays humid, with relative humidity between 57% and 89% and the peak around 23:00. A lighter breeze peaks around 20:00 near 2.0 km/h.

Afternoon conditions open up, holding cloud close to 11% near 19:00. The day finishes on a milder, brighter note. Horizontal visibility holds close to 16.1 km. Daylight runs from 06:36 to 18:50, lasting 12 hours 13 minutes of sunlight today.

The practical takeaway for Alstead is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 25°C.

Frequently asked questions about weather in Alstead

How warm does it get in Alstead?

The warmest month in Alstead is July, with average high temperatures of 28°C. The average temperature during this period is around 22°C.

How cold does it get in Alstead?

The coldest month in Alstead is January, with average low temperatures of -8°C. The average temperature during this period is around -4°C.

What is the wettest time of year in Alstead?

The wettest month in Alstead is October, with an average of 115mm of precipitation.

What is the driest time of year in Alstead?

The driest month in Alstead is September, with an average of 77mm of precipitation.

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Metric (°C, km/h)