Weather in Merrimack

United States · New Hampshire · 42.8651, -71.4934

Today Now 8:30 PM

+55° Clear

Hourly forecast

Today10/29 Temperature°F Cloudiness Precipitation Windmph Wind gusts Humidity PressureinHg Dew point°F Visibilitymi UV index
Hourly forecast — Merrimack

Forecast in words

Today

Expect mostly clear. Daytime high +55°, overnight low +54°. Wind gusts reach 7 mph. The day promises to be dry.

Tomorrow

Tomorrow partly cloudy, high +66°, low +46°, 11° warmer.

Week

During the week the thermometer stays between +30°…+68°. Warmest day — Mon, up to +68°. Nighttime weekly low: +30° (Sun). Days with precipitation — Tue. Cloudless weather for 4 days.

Week vs norm

  1. Today 10/29 +55° as usual usually +56°
  2. Tomorrow 10/30 +66° +11° usually +55°
  3. Sat 10/31 +50° −5° usually +55°
  4. Sun 11/1 +57° +3° usually +54°
  5. Mon 11/2 +68° +14° usually +54°
  6. Tue 11/3 +59° +5° usually +54°
  7. Wed 11/4 +54° as usual usually +53°
  8. Thu 11/5 +57° +5° usually +53°

Difference between forecast daytime high and the 1991–2020 norm for this date.

This day, October 29

Today is cooler than usual for this date.

  • Heat record +74° 2015
  • Cold record +24° 2001
  • Most precipitation 1.2 in 2003
  • Strongest gust 70 mph 2012

Records for this calendar date, 1991-2024, ERA5 reanalysis.

Climate in Merrimack

Today is about 6° colder than usual for October.

Climate normals by month, Merrimack
Month Daytime / Nighttime Average Precipitation in
Jan +32° / +17° +24° 3.3
Feb +35° / +19° +26° 3.1
Mar +43° / +27° +34° 4.1
Apr +56° / +37° +46° 3.9
May +67° / +48° +57° 3.5
Jun +77° / +58° +67° 3.7
Jul +82° / +64° +73° 3.8
Aug +81° / +62° +71° 3.5
Sep +73° / +55° +64° 3.6
Oct +61° / +44° +52° 4.0
Nov +49° / +34° +40° 3.4
Dec +38° / +24° +30° 4.4

Climatic normals for 1991–2025 years from ERA5-Land reanalysis.

Astronomical data

Sunrise / sunset 7:16 AM | 5:41 PM
Moon 8:10 PM | 11:42 AM
Moon phase Waning gibbous 84%
Next solar eclipse
Calculating for this city…

Weather in the region