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Portsmouth Weather Today

Temperature, Feels Like, Rain Chance & Hourly Forecast in Portsmouth

Portsmouth temperature today is 27°, feels like 29°, with a humidity level of 67% and wind at 18.5 km/h. Rain chance today is 31%. Use the hourly forecast and 5-day outlook below to plan your day.

Tomorrow in Portsmouth: expect a high of 30° and a low of 23°, with clear sky.

scattered clouds
27°
scattered clouds
H: 28° L: 26°
Feels like 29°
AQI: (/5)
Portsmouth
Weather Updated Sep 19, 2026 9:02 PM
Humidity
67%
Dew 20°
Wind speed
18.5 km/h
ENE
Pressure
1019 hPa
Visibility
10 km
Windy Conditions
Wind speed is 18.5 km/h.
Weather Summary
Currently in Portsmouth, expect varied conditions with warm temperatures around 27°. Winds are moderate winds.
Sat
scattered clouds
27° 24°
31%
Sun
clear sky
30° 23°
Mon
overcast clouds
26° 23°
20%
Tue
light rain
25° 22°
60%
Wed
light rain
22° 21°
100%
Daily Weather Forecast
Saturday
09/19/2026
scattered clouds
24°
27°
31%
Sunday
09/20/2026
clear sky
23°
30°
Monday
09/21/2026
overcast clouds
23°
26°
20%
Tuesday
09/22/2026
light rain
22°
25°
60%
Wednesday
09/23/2026
light rain
21°
22°
100%
Precipitation Probability
31%
14
0%
17
0%
20
0%
23
0%
02
0%
05
0%
08
0%
11
0%
14
0%
17
0%
20
0%
23
0%
02
0%
05
0%
08
0%
11
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
27°
Sat
14:00
26°
 
24°
 
24°
 
24°
Sun
02:00
23°
 
24°
 
27°
 
30°
Sun
14:00
30°
 
27°
 
25°
 
24°
Mon
02:00
23°
 
24°
 
25°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:50
Sunset
Sunset
19:07
Moon Phase
First Quarter (64%)
Timezone: GMT+05:30
Last updated: Sep 19, 2026 9:02 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
36.854870
Longitude
Longitude
-76.354668
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More about Portsmouth
Content curated by the NearWeather editorial team · Updated periodically
Portsmouth is a city located in the US state of New Hampshire. It sits along the Atlantic Ocean and is the only city in the state with a deepwater port. The city has a population of approximately 21,233 people and is a popular tourist destination due to its historic charm and proximity to the ocean. The climate in Portsmouth is characterized as humid continental with warm summers and cold winters. The average temperature year round is 46°F (8°C). Summers are generally warm and humid, with temperatures ranging from the mid 60s to mid 80s (17-29°C). Winters are cold, with temperatures ranging from the teens to low 30s (-7 to 1°C). Snowfall averages around 30 inches (76 cm) per year.
Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about Portsmouth
What is the temperature in Portsmouth right now?

The current temperature in Portsmouth is 27°, and it feels like 29°. Today's high is 28° and the low is 26°.

Will it rain in Portsmouth today?

The chance of rain in Portsmouth today is 31%. Check the hourly forecast above for exact timing.

What is the weather in Portsmouth today?

Portsmouth is experiencing scattered clouds with a temperature of 27°. Humidity is at 67% and wind speed is 18.5 km/h from the ENE.

What is the humidity in Portsmouth today?

Humidity in Portsmouth is 67% right now, with a dew point of 20°. Comfort levels are moderate.

What is the wind speed in Portsmouth today?

Wind speed in Portsmouth is 18.5 km/h, flowing at 60° ENE wind direction.

What is the 5-day forecast for Portsmouth?

NearWeather provides a detailed 5-day forecast and 48-hour hourly forecast for Portsmouth. Today's high is 28° and low is 26°, with a 31% chance of rain. Scroll up to view the full day-by-day and hourly breakdown.

What does it feel like in Portsmouth today?

It feels like 29° in Portsmouth today, with 26% cloud cover and 10 km visibility.

Weather in Portsmouth
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