Cities / United States / New Hampshire

17°

🌤️ Portsmouth weather

Mostly clear. .

Feels like 17° Wind 7 km/h W Humidity 63% Pressure 1009 hPa UV 0 Air Good ☀ 06:18 - 19:00

Right now it is 17° in Portsmouth with mostly clear skies and today's high is 24° with an overnight low of 14°. The sun rises at 06:18 and sets at 19:00, giving 12h 42m of daylight. Over the coming week highs range from 19° to 23°.

Portsmouth is in New Hampshire, United States, sitting 6 m above sea level, with a population of about 22,000. Local time is America/New_York (UTC−4), and every time on this page is shown in it.

Next 24 hours - temperature

13° 19° 25° 24° 14° 01:00 · 17.6° · 0 mm 02:00 · 16.9° · 0 mm 03:00 · 16.9° · 0 mm 04:00 · 16.3° · 0 mm 05:00 · 15.3° · 0 mm 06:00 · 14.2° · 0 mm 07:00 · 14.3° · 0 mm 08:00 · 16.9° · 0 mm 09:00 · 18.7° · 0 mm 10:00 · 19.9° · 0 mm 11:00 · 21.1° · 0 mm 12:00 · 22.1° · 0 mm 13:00 · 23° · 0 mm 14:00 · 23.7° · 0 mm 15:00 · 24.2° · 0 mm 16:00 · 24.2° · 0 mm 17:00 · 23.8° · 0 mm 18:00 · 22.8° · 0 mm 19:00 · 20.5° · 0 mm 20:00 · 18.7° · 0 mm 21:00 · 17° · 0 mm 22:00 · 15.7° · 0 mm 23:00 · 14.7° · 0 mm 00:00 · 13.8° · 0 mm

Precipitation

01:00 · 0 mm 01:00 02:00 · 0 mm 03:00 · 0 mm 04:00 · 0 mm 04:00 05:00 · 0 mm 06:00 · 0 mm 07:00 · 0 mm 07:00 08:00 · 0 mm 09:00 · 0 mm 10:00 · 0 mm 10:00 11:00 · 0 mm 12:00 · 0 mm 13:00 · 0 mm 13:00 14:00 · 0 mm 15:00 · 0 mm 16:00 · 0 mm 16:00 17:00 · 0 mm 18:00 · 0 mm 19:00 · 0 mm 19:00 20:00 · 0 mm 21:00 · 0 mm 22:00 · 0 mm 22:00 23:00 · 0 mm 00:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
01:00 ☀️ 17.6° 16.4° - Clear sky
02:00 ☁️ 16.9° 15.5° - Overcast
03:00 ⛅ 16.9° 15.4° - Partly cloudy
04:00 ☁️ 16.3° 14.5° - Overcast
05:00 ☀️ 15.3° 12.9° - Clear sky
06:00 ☀️ 14.2° 11.7° - Clear sky
07:00 ☀️ 14.3° 11.5° - Clear sky
08:00 ☀️ 16.9° 13.5° - Clear sky
09:00 ☀️ 18.7° 14.3° - Clear sky
10:00 ☀️ 19.9° 15° - Clear sky
11:00 ☀️ 21.1° 15.9° - Clear sky
12:00 ☀️ 22.1° 16.7° - Clear sky

Next 16 days

Today☀️ 24°14° Sat 12☀️ 22°10° Sun 13🌧️ 21°16°23.1mm Mon 14☀️ 22°12° Tue 15☁️ 19°9° Wed 16☁️ 23°16° Thu 17🌧️ 19°16°15.3mm Fri 18☀️ 17°13° Sat 19☀️ 23°13° Sun 20☁️ 18°10°0.3mm Mon 21☀️ 15°6° Tue 22☀️ 14°5° Wed 23☁️ 16°6° Thu 24☁️ 19°12°0.3mm Fri 25☁️ 18°9° Sat 26☀️ 0°0°
☀️ TodaySeptember 11th Avg 19° Low 14° at 06:00 High 24° at 15:00 Feels 19° Wind ~22 km/h
Clear
00:00 19°
02:00 17°
04:00 16°
06:00 14°
08:00 17°
10:00 20°
12:00 22°
14:00 24°
16:00 24°
18:00 23°
20:00 19°
22:00 16°
☀️ SaturdaySeptember 12th Avg 17° Low 10° at 06:00 High 22° at 14:00 Feels 19° Wind ~17 km/h
Clear Cloudy
00:00 14°
02:00 12°
04:00 11°
06:00 10°
08:00 14°
10:00 20°
12:00 21°
14:00 22°
16:00 21°
18:00 19°
20:00 17°
22:00 17°
🌧️ SundaySeptember 13th Avg 18° Low 16° at 02:00 High 21° at 17:00 23.1 mm rain Feels 23° Wind ~14 km/h
Rain Cloudy
00:00 18°
02:00 16° 0.3mm
04:00 16° 0.1mm
06:00 16° 2.1mm
08:00 18° 2.4mm
10:00 18° 1.8mm
12:00 18° 1mm
14:00 19°
16:00 20°
18:00 20°
20:00 18° 0.3mm
22:00 18°
☀️ MondaySeptember 14th Avg 18° Low 12° at 23:00 High 22° at 15:00 Feels 19° Wind ~18 km/h
Cloudy Clear
00:00 18°
02:00 18°
04:00 17°
06:00 16°
08:00 16°
10:00 20°
12:00 22°
14:00 22°
16:00 22°
18:00 19°
20:00 14°
22:00 13°
☁️ TuesdaySeptember 15th Avg 15° Low 9° at 04:00 High 19° at 14:00 Feels 15° Wind ~22 km/h
Clear Cloudy
00:00 12°
02:00 10°
04:00 9°
06:00 11°
08:00 13°
10:00 17°
12:00 18°
14:00 19°
16:00 17°
18:00 17°
20:00 16°
22:00 16°
☁️ WednesdaySeptember 16th Avg 19° Low 16° at 04:00 High 23° at 17:00 Wind ~19 km/h
Partly Cloudy Clear Partly Cloudy Cloudy Clear
00:00 16°
02:00 16°
04:00 16°
06:00 16°
08:00 17°
10:00 22°
12:00 23°
14:00 21°
16:00 23°
18:00 22°
20:00 20°
22:00 20°
🌧️ ThursdaySeptember 17th Avg 17° Low 16° at 23:00 High 19° at 00:00 15.3 mm rain Feels 21° Wind ~15 km/h
Partly Cloudy Rain Cloudy
00:00 19°
02:00 17°
04:00 16°
06:00 17°
08:00 18°
10:00 18° 0.3mm
12:00 17° 3.1mm
14:00 16° 3.1mm
16:00 16° 1.7mm
18:00 16°
20:00 16°
22:00 16°
☀️ FridaySeptember 18th Avg 15° Low 13° at 20:00 High 17° at 12:00 Feels 15° Wind ~15 km/h
Cloudy Clear
00:00 16°
02:00 15°
04:00 14°
06:00 14°
08:00 14°
10:00 16°
12:00 17°
14:00 16°
16:00 16°
18:00 15°
20:00 13°
22:00 14°
☀️ SaturdaySeptember 19th Avg 18° Low 13° at 05:00 High 23° at 15:00 Wind ~14 km/h
Cloudy Clear Cloudy
00:00 14°
02:00 13°
04:00 13°
06:00 13°
08:00 14°
10:00 19°
12:00 22°
14:00 23°
16:00 23°
18:00 21°
20:00 18°
22:00 17°
☁️ SundaySeptember 20th Avg 14° Low 10° at 08:00 High 18° at 00:00 0.3 mm rain Wind ~19 km/h
Cloudy Rain Cloudy Clear Cloudy
00:00 18°
02:00 17°
04:00 15° 0.1mm
06:00 12°
08:00 10°
10:00 13°
12:00 16°
14:00 16°
16:00 15°
18:00 13°
20:00 12°
22:00 11°
☀️ MondaySeptember 21st Avg 10° Low 6° at 05:00 High 15° at 14:00 Feels 10° Wind ~18 km/h
Partly Cloudy Clear
00:00 11°
02:00 9°
04:00 7°
06:00 6°
08:00 7°
10:00 11°
12:00 14°
14:00 15°
16:00 13°
18:00 12°
20:00 10°
22:00 9°
☀️ TuesdaySeptember 22nd Avg 10° Low 5° at 04:00 High 14° at 14:00 Feels 11° Wind ~12 km/h
Clear
00:00 7°
02:00 6°
04:00 5°
06:00 6°
08:00 8°
10:00 12°
12:00 14°
14:00 14°
16:00 14°
18:00 13°
20:00 10°
22:00 10°
☁️ WednesdaySeptember 23rd Avg 11° Low 6° at 04:00 High 16° at 14:00 Feels 13° Wind ~14 km/h
Cloudy
00:00 9°
02:00 7°
04:00 6°
06:00 7°
08:00 9°
10:00 13°
12:00 15°
14:00 16°
16:00 15°
18:00 14°
20:00 13°
22:00 13°
☁️ ThursdaySeptember 24th Avg 15° Low 12° at 06:00 High 19° at 14:00 0.3 mm rain Feels 17° Wind ~18 km/h
Rain Cloudy
00:00 13° 0.1mm
02:00 12° 0.1mm
04:00 12°
06:00 12°
08:00 13°
10:00 16°
12:00 19°
14:00 19°
16:00 19°
18:00 17°
20:00 15°
22:00 14°
☁️ FridaySeptember 25th Avg 14° Low 9° at 23:00 High 18° at 14:00 Feels 13° Wind ~25 km/h
Cloudy Clear
00:00 14°
02:00 14°
04:00 15°
06:00 14°
08:00 13°
10:00 14°
12:00 16°
14:00 18°
16:00 18°
18:00 15°
20:00 11°
22:00 9°
☀️ SaturdaySeptember 26th Avg 11° Low 0° at 04:00 High 0° at 14:00 Feels 11° Wind ~33 km/h
Clear Unknown
00:00 9°
02:00 9°
04:00 8°
06:00 8°
08:00 11°
10:00 14°
12:00 17°
14:00 18°
16:00 0°
18:00 0°
20:00 0°
22:00 0°

Sun

☀️ Sunrise 06:18 · Sunset 19:00

12h 42m of daylight · America/New_York

Air quality

PM2.5 3.6 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Puddle Dock (historical) · 0.3 km Bersum Gardens · 1.2 km Oak Terrace · 1.4 km Creek Area · 1.4 km Christian Shore · 1.5 km Kittery Foreside · 1.5 km

Tools for Portsmouth

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about Portsmouth weather

Will it rain in Portsmouth today?

No rain is in the forecast for Portsmouth today.

What is the temperature in Portsmouth right now?

It is 17° in Portsmouth right now. Today runs between a low of 14° and a high of 24°.

What time is sunrise and sunset in Portsmouth?

The sun rises at 06:18 and sets at 19:00 local time in Portsmouth today, giving 12h 42m of daylight.

What is the air quality in Portsmouth?

PM2.5 in Portsmouth is currently 3.6 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Portsmouth forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Portsmouth best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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