South Merrimack, NH Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for South Merrimack, NH in one place.
Partly sunny, with a high near 54. Southwest wind 0 to 5 mph.
Local Weather Overview
This forecast page for South Merrimack, NH is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Nov 9, 2026 10:21 PM EST.
The active forecast window currently covers Nov 10 to Nov 16, 2026 for South Merrimack, NH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 10 to Nov 16, 2026
- Latest sync
- Nov 9, 2026 10:21 PM EST
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Merrimack
Veterans Day looks like the warmest upcoming period in South Merrimack at 56 degrees F.
Sunday Night is the coolest period ahead with temperatures near 26 degrees F.
The strongest winds are forecast for Thursday Night at about 0 to 10 mph NE.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 9, 2026 10:21 PM EST
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- GYX
- Radar station
- KBOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 38. West wind around 5 mph.
Mostly sunny, with a high near 56. Northwest wind 0 to 5 mph.
A slight chance of rain showers between 4am and 5am. Partly cloudy, with a low around 29. Northwest wind around 0 mph.
A slight chance of rain showers after 5pm. Partly sunny, with a high near 54.
A slight chance of rain showers before 7pm, then a chance of rain between 7pm and 4am, then a chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 50%.
A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
A chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
A chance of rain before 3am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Mostly sunny, with a high near 50.
Partly cloudy, with a low around 26.
Mostly sunny, with a high near 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Nov 10
|
Partly Sunny
|
54°F |
0 to 5 mph
SW
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
38°F |
5 mph
W
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
56°F |
0 to 5 mph
NW
|
|
Wednesday Night
Nov 11
|
Partly Cloudy then Slight Chance Rain Showers
|
29°F |
0 mph
|
|
Thursday
Nov 12
|
Partly Sunny then Slight Chance Rain Showers
|
54°F |
0 to 5 mph
NE
|
|
Thursday Night
Nov 12
|
Chance Light Rain then Chance Rain And Snow
|
30°F |
0 to 10 mph
NE
|
|
Friday
Nov 13
|
Chance Rain And Snow
|
43°F |
5 to 10 mph
N
|
|
Friday Night
Nov 13
|
Chance Rain And Snow
|
27°F |
5 mph
N
|
|
Saturday
Nov 14
|
Chance Rain And Snow
|
46°F |
5 to 10 mph
NW
|
|
Saturday Night
Nov 14
|
Chance Light Rain
|
28°F |
5 mph
NW
|
|
Sunday
Nov 15
|
Mostly Sunny
|
50°F |
5 to 10 mph
NW
|
|
Sunday Night
Nov 15
|
Partly Cloudy
|
26°F |
0 to 5 mph
NW
|
|
Monday
Nov 16
|
Mostly Sunny
|
53°F |
5 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Merrimack.