Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
More than 10 feet of snow to bury California mountains into next week. Get the forecast. Chevron right
Snowstorm risk on the rise for the Northeast this weekend, including NYC. Get the snow forecast. Chevron right

Portsmouth, NH

39°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Portsmouth

New Hampshire

39°
No results found.
Try searching for a city, zip code or point of interest.
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Portsmouth, NH Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today WinterCast Hourly

Daily

Radar MinuteCast® Monthly Air Quality Health & Activities

Unlock extended 90-day forecasts

Activate Your Premium+ Subscription

Chevron right

February 18 - March 19

Wed 2/18

45° /19°
25%
Some sun, then turning cloudy

RealFeel®48°

RealFeel Shade™42°

Max UV Index3.0 (Moderate)

WindWNW 6 mph

Thu 2/19

39° /19°
0%
Times of clouds and sun

RealFeel®41°

RealFeel Shade™35°

Max UV Index3.0 (Moderate)

WindN 6 mph

Fri 2/20

36° /21°
80%

WinterCast

2 - 4 in

Fri, 2/20, 1:00 PM - Sat, 2/21, 3:00 PM

Snow

Cloudy with a coating to an inch of wet snow in the afternoon

RealFeel®32°

RealFeel Shade™31°

Max UV Index1.0 (Low)

WindSSE 7 mph

Sat 2/21

27° /10°
68%

WinterCast

2 - 4 in

Fri, 2/20, 1:00 PM - Sat, 2/21, 3:00 PM

Snow

Cloudy and colder with a bit of snow, accumulating a coating to an inch; breezy in the morning; storm total snowfall 2-4 inches

RealFeel®24°

RealFeel Shade™24°

Max UV Index1.0 (Low)

WindN 10 mph

Sun 2/22

34° /25°
25%
Not as cold with times of clouds and sun

RealFeel®32°

RealFeel Shade™31°

Max UV Index2.0 (Low)

WindNE 9 mph

Mon 2/23

35° /18°
35%
Mostly cloudy with snow possible

RealFeel®27°

RealFeel Shade™27°

Max UV Index2.0 (Low)

WindNNE 12 mph

Tue 2/24

34° /11°
21%
Mostly sunny

RealFeel®44°

RealFeel Shade™36°

Max UV Index3.0 (Moderate)

WindW 4 mph

Wed 2/25

37° /32°
1%
Sunshine

RealFeel®41°

RealFeel Shade™34°

Max UV Index3.0 (Moderate)

WindE 6 mph

Thu 2/26

41° /27°
81%
A mix of snow, sleet and rain in the morning; considerable cloudiness

RealFeel®36°

RealFeel Shade™34°

Max UV Index1.0 (Low)

WindS 12 mph

Fri 2/27

41° /26°
0%
Sunny

RealFeel®43°

RealFeel Shade™37°

Max UV Index4.0 (Moderate)

WindSW 6 mph

Sat 2/28

39° /30°
2%
Sunshine and some clouds

RealFeel®49°

RealFeel Shade™40°

Max UV Index4.0 (Moderate)

WindENE 6 mph

Sun 3/1

42° /30°
7%
Increasing cloudiness

RealFeel®34°

RealFeel Shade™34°

Max UV Index3.0 (Moderate)

WindW 12 mph

Mon 3/2

41° /28°
24%
Cloudy

RealFeel®32°

RealFeel Shade™32°

Max UV Index1.0 (Low)

WindSSW 13 mph

Tue 3/3

39° /22°
25%
Cloudy

RealFeel®37°

RealFeel Shade™37°

Max UV Index1.0 (Low)

WindNNW 7 mph

Wed 3/4

32° /15°
25%
Cloudy and colder

RealFeel®22°

RealFeel Shade™22°

Max UV Index1.0 (Low)

WindSW 12 mph

Thu 3/5

36° /16°
25%
Partial sunshine

RealFeel®39°

RealFeel Shade™36°

Max UV Index1.0 (Low)

WindNW 6 mph

Fri 3/6

34° /15°
25%
Thickening clouds

RealFeel®33°

RealFeel Shade™33°

Max UV Index2.0 (Low)

WindWNW 8 mph

Sat 3/7

34° /25°
75%
Rain and freezing rain in the afternoon; otherwise, a bit of ice in the morning; dull and dreary

RealFeel®22°

RealFeel Shade™22°

Max UV Index1.0 (Low)

WindS 13 mph

Sun 3/8

43° /31°
25%
Rather cloudy and not as cold

RealFeel®35°

RealFeel Shade™35°

Max UV Index1.0 (Low)

WindSSW 13 mph

Mon 3/9

47° /31°
25%
Cloudy

RealFeel®36°

RealFeel Shade™36°

Max UV Index1.0 (Low)

WindS 17 mph

Tue 3/10

47° /29°
60%
A bit of snow, sleet, freezing rain and rain in the morning; otherwise, clouds breaking for some sun

RealFeel®39°

RealFeel Shade™37°

Max UV Index4.0 (Moderate)

WindSSW 15 mph

Wed 3/11

41° /27°
25%
After a cloudy start, sun returns

RealFeel®31°

RealFeel Shade™28°

Max UV Index3.0 (Moderate)

WindWNW 14 mph

Thu 3/12

39° /25°
20%
Plenty of sunshine

RealFeel®40°

RealFeel Shade™35°

Max UV Index4.0 (Moderate)

WindW 8 mph

Fri 3/13

44° /29°
25%
Increasing cloudiness

RealFeel®38°

RealFeel Shade™38°

Max UV Index3.0 (Moderate)

WindSSW 10 mph

Sat 3/14

48° /32°
25%
Mostly cloudy

RealFeel®41°

RealFeel Shade™41°

Max UV Index2.0 (Low)

WindSSW 14 mph

Sun 3/15

49° /32°
25%
Cloudy

RealFeel®45°

RealFeel Shade™45°

Max UV Index1.0 (Low)

WindE 8 mph

Mon 3/16

48° /31°
25%
Cloudy

RealFeel®42°

RealFeel Shade™42°

Max UV Index1.0 (Low)

WindNNE 8 mph

Tue 3/17

47° /31°
25%
Intervals of clouds and sunshine

RealFeel®40°

RealFeel Shade™38°

Max UV Index2.0 (Low)

WindNE 14 mph

Wed 3/18

47° /30°
25%
Turning cloudy

RealFeel®46°

RealFeel Shade™46°

Max UV Index3.0 (Moderate)

WindNE 7 mph

Thu 3/19

48° /31°
25%
Cloudy

RealFeel®50°

RealFeel Shade™50°

Max UV Index1.0 (Low)

WindWSW 5 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

8 backcountry skiers killed after California avalanche; 6 survivors ha...

3 hours ago

Severe Weather

Ohio Valley faces 1st severe weather in months on Thursday

3 hours ago

Weather News

155,000-acre wildfire explodes across Oklahoma, Kansas

6 hours ago

Winter Weather

Weekend snowstorm risk in Northeast hinges on storm track, cold air

4 hours ago

Winter Weather

More than 10 feet of snow to bury California mountains into next week

4 hours ago

More Stories

Featured Stories

Weather Forecasts

Wildfire season to ramp up early as drought covers over 40% of the US

7 hours ago

Climate

Winter is getting shorter across nearly 200 U.S. cities

1 day ago

Winter Weather

‘Pothole season’ is here as winter takes its toll on roads in the East

1 day ago

Weather News

Shipwreck missing since 1872 discovered at bottom of Lake Michigan

1 day ago

Sports

Why skiing will forever be the most glamorous sport

2 days ago

World North America United States New Hampshire Portsmouth

Weather Near Portsmouth:

  • Boston, MA
  • Dorchester, MA
  • Worcester, MA
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...