Live Weather & Forecast
Weather in Portsmouth
Rhode Island, United States · Real-time conditions & 3-day outlook
26°C
Feels like 27°C
79°F / Feels 81°F
Partly cloudy
Portsmouth, Rhode Island
🌞 Daytime
Updated: 2026-04-15 14:15
Humidity
44%
Wind
16.6 km/h SSW
Wind Gust
30.8 km/h
Pressure
1012 mb
Visibility
16 km
UV Index
6.2
(High)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
17.6°C
Wind Degree
196°
Air Quality Index
US EPA: Moderate
UK DEFRA: Low (2)
CO
173.9 μg/m³
NO₂
9.1 μg/m³
O₃
107 μg/m³
SO₂
5.6 μg/m³
PM 2.5
19.5 μg/m³
PM 10
21.2 μg/m³
Today's Hourly Forecast
24-hour breakdown for Portsmouth, Rhode Island
12 AM
14°
Patchy rain nearby
1 AM
13°
Patchy rain nearby
2 AM
13°
Clear
3 AM
12°
Clear
4 AM
12°
Clear
5 AM
13°
Clear
6 AM
13°
Clear
7 AM
15°
Sunny
8 AM
18°
Sunny
9 AM
20°
Sunny
10 AM
22°
Sunny
11 AM
24°
Sunny
12 PM
26°
Sunny
1 PM
26°
Sunny
2 PM
26°
Partly cloudy
3 PM
26°
Sunny
4 PM
24°
Sunny
5 PM
21°
Sunny
6 PM
18°
Patchy rain nearby
7 PM
15°
Patchy rain nearby
8 PM
14°
Mist
9 PM
13°
Mist
10 PM
12°
Clear
11 PM
12°
Clear
3-Day Forecast
Daily overview for Portsmouth, Rhode Island
Today
Patchy rain nearby
28°
/
11°
🌧️ 88% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 18.7 km/h
🌧️ Total precip: 1.97 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:05 AM
🌇 Sunset: 07:26 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Partly Cloudy
18°
/
8°
🌧️ 0% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 20.9 km/h
🌧️ Total precip: 0.08 mm
☀️ UV Index: 1.4
🌅 Sunrise: 06:04 AM
🌇 Sunset: 07:27 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Partly Cloudy
16°
/
9°
🌧️ 0% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 18 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:02 AM
🌇 Sunset: 07:28 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Portsmouth
Plan your trip to Portsmouth, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Portsmouth?
Current conditions in Portsmouth: Partly cloudy, temperature 26°C, humidity 44%.
What is the best time to visit Portsmouth?
The best time to visit Portsmouth is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Portsmouth?
Portsmouth is located at approximately 41.6° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Portsmouth?
The wettest period in Portsmouth is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Portsmouth?
For visits to Portsmouth during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Portsmouth in?
Portsmouth is located in United States, in the state of Rhode Island.
What are the public holidays in Portsmouth in 2026?
View the 2026 public holidays for Portsmouth on our Holidays page.
What are the GPS coordinates used for the weather forecast in Portsmouth?
The weather forecast for Portsmouth uses coordinates 41.6024, -71.2503.