Weather forecast for 10 daysPortsmouth, RI

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 55°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphNNE 22°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:00 am EDT
  • Sunset: 5:59 pm EDT
  • ▼
Today, on Sunday, October 18, sunny and dry conditions are anticipated.
Temperatures will oscillate between a moderate 55.4°F at their highest and a wintry 37.4°F at their lowest.
Today, the forecasted high temperature is lower and fits better with November's average than with October's usual.
Sunrise was at 7:00 am and sunset will be at 5:59 pm; the daylight will last for 10h and 59min.

10-day overview

Daily temperatures

Warmest day: Monday 26.10. 64°C.
Coldest day: Friday 54°C.

Chance of precipitation

Highest chance: Thursday 39%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 55°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphNNE 22°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:00 am EDT
  • Sunset: 5:59 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 61°F
  • 46°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 14mphNE 40°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:01 am EDT
  • Sunset: 5:57 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 61°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 18mphNNE 23°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 7:03 am EDT
  • Sunset: 5:56 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 55°F
  • 45°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0.12"
  • Wind: 19mphNNE 33°
  • Humidity: 70%
  • UV index: 3
  • Sunrise: 7:04 am EDT
  • Sunset: 5:55 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 59°F
  • 43°F
AM Showers
AM Showers
  • Precip. probability: 39%
  • Precipitation: 0.04"
  • Wind: 14mphNNE 16°
  • Humidity: 68%
  • UV index: 4
  • Sunrise: 7:05 am EDT
  • Sunset: 5:53 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 54°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 16mphNNE 13°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:06 am EDT
  • Sunset: 5:52 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 11mphNNE 22°
  • Humidity: 57%
  • UV index: 3
  • Sunrise: 7:07 am EDT
  • Sunset: 5:50 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 7mphW 280°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 7:08 am EDT
  • Sunset: 5:49 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 64°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 7mphWNW 291°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:10 am EDT
  • Sunset: 5:47 pm EDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 59°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 11mphN 358°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:11 am EDT
  • Sunset: 5:46 pm EDT
  • ▼
clear, dull and showery weather is expected.
Rainfall is anticipated on Wednesday and Thursday.
In the upcoming period, the highest temperature will range between 53.6°F and 64.4°F, while nighttime temperatures are expected to vary from 37.4°F to 48.2°F.
With the highest temperature of 64.4°F, next Monday will be the warmest day; the lowest daytime temperature of the period will be reached on Friday, peaking at 53.6°F.
Updated: Oct 18, 2026 @ 14:40:05 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sunny and dry conditions are anticipated.

Today, the highest temperature will be 55.4°F, while the lowest temperature will be 37.4°F.
The maximum temperature will be a couple of degrees lower than the average highest temperature of 61.7°F in October. The lowest temperature today will be notably lower than the average low of 51.3°F.

On Sunday, in Portsmouth, sunrise was at 7:00 am and sunset will be at 5:59 pm (EDT).

Today, the daylight will last for 10h and 59min.