Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Tropical Storm Melissa has formed in the Caribbean and is forecast to strengthen. Get the impact details. Chevron right
An atmospheric river will soon drench the West Coast. See when the rain will start. Chevron right

Merrimack, NH

60°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Merrimack

New Hampshire

60°
No results found.
Try searching for a city, zip code or point of interest.
settings
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
Tuesday, October 21

Current Weather

12:14 PM

60°F
Sunny
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel Shade™ 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
RealFeel®
66°
RealFeel Shade™
60°
Max UV Index
3.2 (Moderate)
Wind
WSW 4 mph
Wind Gusts
10 mph
Humidity
54%
Indoor Humidity
41% (Ideal Humidity)
Dew Point
44° F
Pressure
↔ 29.85 in
Cloud Cover
0%
Visibility
6 mi
Cloud Ceiling
33400 ft

Day

10/21
66°Hi
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel Shade™ 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Mostly sunny and pleasant

Max UV Index3.0 (Moderate)

AccuLumen Brightness Index™9 (Very Bright)

WindSW 8 mph

Wind Gusts22 mph

Probability of Precipitation1%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover8%

Morning

Afternoon

Night

10/21
51°Lo
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
Cloudy with a couple of showers, then a steadier rain

WindSSE 6 mph

Wind Gusts15 mph

Probability of Precipitation100%

Probability of Thunderstorms20%

Precipitation0.36 in

Rain0.36 in

Hours of Precipitation4

Hours of Rain4

Cloud Cover95%

Evening

Overnight

Sun & Moon

10 hrs 48 mins
Rise 7:06 AM
Set 5:54 PM
New Moon
Rise 7:17 AM
Set 5:39 PM

Temperature History

10/21
High
Low
Forecast
66°
51°
Average
61°
37°
Last Year
80°
41°
Record
80°
2024
16°
1972

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Caribbean bracing for future hurricane as Melissa forms

1 hour ago

Weather Forecasts

November-like weather on the way for Great Lakes, Northeast

1 hour ago

Severe Weather

One dead, nine seriously injured after tornado strikes Paris suburb

2 hours ago

Weather Forecasts

Atmospheric River to advance into the West Coast this week

6 hours ago

Severe Weather

EF1 tornado damages home, snaps trees in Arkansas

22 hours ago

More Stories

Featured Stories

Travel

Plane makes emergency landing, pilots hear knocking on cockpit door

2 hours ago

Weather News

Polar bears take over abandoned island in Russia

1 day ago

AccuWeather Ready

Daylight Saving Time: 5 things to do after changing the clocks

5 days ago

Recreation

Runner wrestles bear in Japanese woods: ‘In one bite my arm was done’

1 day ago

Astronomy

Sunlight on demand: the satellites that could brighten our nights

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 RealFeel® and RealFeel Shade™ 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 RealFeel® and RealFeel Shade™ 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
© 2025 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

...

...

...