Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
AccuWeather releases its 2026 Atlantic hurricane season forecast. Get the details. Chevron right
Severe weather threatens Missouri through Ohio. See the latest forecast. Chevron right

Merrimack, NH

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

Merrimack

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
Merrimack, 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

Hourly

Daily Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

6 AM

39°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 70%
Chevron down
Showers

WindSSW 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity84%

Indoor Humidity43% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility10 mi

Cloud Ceiling7100 ft

7 AM

40°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 66%
Chevron down
Showers

RealFeel Shade™30°

WindSSW 9 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts10 mph

Humidity87%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover93%

Rain0.03 in

Visibility6 mi

Cloud Ceiling4000 ft

8 AM

48°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 25%
Chevron down
Cloudy

RealFeel Shade™45°

WindSW 7 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts9 mph

Humidity65%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling4800 ft

9 AM

51°
RealFeel® 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™47°

WindSW 8 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts10 mph

Humidity63%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling6500 ft

10 AM

55°
RealFeel® 52°
Cool
RealFeel Guide
Cool
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™52°

WindSW 9 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts10 mph

Humidity54%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling8100 ft

11 AM

59°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™55°

WindSW 10 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts12 mph

Humidity48%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling9800 ft

12 PM

62°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™58°

WindSW 12 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts13 mph

Humidity44%

Indoor Humidity36% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling12600 ft

1 PM

64°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 16%
Chevron down
Cloudy

RealFeel Shade™61°

WindSW 12 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts14 mph

Humidity41%

Indoor Humidity36% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover92%

Visibility10 mi

Cloud Ceiling15400 ft

2 PM

66°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™62°

WindSW 12 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts16 mph

Humidity41%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling18300 ft

3 PM

67°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™64°

WindSW 12 mph

Air QualityPoor

Max UV Index1.8 (Low)

Wind Gusts15 mph

Humidity40%

Indoor Humidity38% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling17100 ft

4 PM

66°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™63°

WindWSW 10 mph

Air QualityPoor

Max UV Index1.2 (Low)

Wind Gusts14 mph

Humidity42%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover92%

Visibility10 mi

Cloud Ceiling15900 ft

5 PM

66°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™64°

WindWSW 9 mph

Air QualityPoor

Max UV Index0.7 (Low)

Wind Gusts12 mph

Humidity43%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling14700 ft

6 PM

64°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™63°

WindSW 8 mph

Air QualityPoor

Max UV Index0.3 (Low)

Wind Gusts10 mph

Humidity48%

Indoor Humidity42% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling12100 ft

7 PM

62°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 11%
Chevron down
Cloudy

RealFeel Shade™60°

WindSSW 7 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts9 mph

Humidity56%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling9600 ft

8 PM

60°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 65%
Chevron down
Rain

WindS 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity65%

Indoor Humidity50% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

9 PM

58°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 65%
Chevron down
Rain

WindSSE 5 mph

Air QualityFair

Wind Gusts8 mph

Humidity72%

Indoor Humidity50% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

10 PM

55°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

WindESE 4 mph

Air QualityFair

Wind Gusts7 mph

Humidity79%

Indoor Humidity50% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling3100 ft

11 PM

54°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 68%
Chevron down
Rain

WindENE 4 mph

Air QualityFair

Wind Gusts8 mph

Humidity82%

Indoor Humidity50% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.04 in

Visibility6 mi

Cloud Ceiling1100 ft

Further Ahead

Tomorrow

Saturday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Atlantic hurricane season forecast 2026: 11-16 named storms predicted

23 hours ago

Weather Forecasts

April to kick off with surge of spring warmth for millions in East

22 minutes ago

Severe Weather

Midwest poised for more severe weather, flooding downpours

19 minutes ago

Climate

Colorado towns enact water restrictions as drought forecast looks grim

18 hours ago

Weather Forecasts

Florida has been the “driest in decades” as widespread drought worsens

2 hours ago

More Stories

Featured Stories

Recreation

Wildfire continues burning at America’s most popular National Park

14 hours ago

Astronomy

What’s behind the recent spike in meteor sightings across the US?

14 hours ago

Astronomy

NASA announces new Mars mission, reshapes goals on the moon

19 hours ago

Recreation

When will DC cherry blossoms reach peak bloom? Very soon, experts say

1 day ago

Weather News

First tornado forecast: Scientists who dared to forecast 'act of God'

1 day ago

World North America United States New Hampshire Merrimack

Weather Near Merrimack:

  • 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

...

...

...