National Weather Service Forecast for: East Merrimack NH
Issued by: National Weather Service Gray/Portland, ME
Updated: 6:32 am EST Dec 18, 2025
 
Today

Today: Sunny, with a high near 43. Calm wind becoming south around 5 mph.
Sunny

 Tonight

Tonight: A 50 percent chance of rain after 1am. Patchy fog. Otherwise, increasing clouds, with a temperature falling to near 34 by 10pm, then rising to around 48 during the remainder of the night. South wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Patchy Fog
then Chance
Rain and
Areas Fog
 Friday

Friday: Rain. Patchy fog before 9am. High near 57. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Rain and
Patchy Fog

 Friday
Night
Friday Night: A 40 percent chance of rain before 9pm. Partly cloudy, with a low around 24. West wind 10 to 15 mph, with gusts as high as 25 mph.
Chance Rain
then Partly
Cloudy
 Saturday

Saturday: Mostly sunny, with a high near 37. West wind 5 to 10 mph, with gusts as high as 25 mph.
Mostly Sunny

 Saturday
Night
Saturday Night: Cloudy, with a low around 28.
Cloudy

 Sunday

Sunday: Mostly sunny, with a high near 44.
Mostly Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 18.
Partly Cloudy

 Monday

Monday: Sunny, with a high near 29.
Sunny
Hi 43 °F Lo 34 °F⇑ Hi 57 °F Lo 24 °F Hi 37 °F Lo 28 °F Hi 44 °F Lo 18 °F Hi 29 °F

Wind Advisory
 

Today
 
 Sunny, with a high near 43. Calm wind becoming south around 5 mph.
Tonight
 
 A 50 percent chance of rain after 1am. Patchy fog. Otherwise, increasing clouds, with a temperature falling to near 34 by 10pm, then rising to around 48 during the remainder of the night. South wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
 
 Rain. Patchy fog before 9am. High near 57. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
 
 A 40 percent chance of rain before 9pm. Partly cloudy, with a low around 24. West wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
 
 Mostly sunny, with a high near 37. West wind 5 to 10 mph, with gusts as high as 25 mph.
Saturday Night
 
 Cloudy, with a low around 28.
Sunday
 
 Mostly sunny, with a high near 44.
Sunday Night
 
 Partly cloudy, with a low around 18.
Monday
 
 Sunny, with a high near 29.
Monday Night
 
 Partly cloudy, with a low around 15.
Tuesday
 
 A 30 percent chance of snow. Mostly cloudy, with a high near 35.
Tuesday Night
 
 A chance of rain and snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Wednesday
 
 Mostly sunny, with a high near 37.

 

Forecast from NOAA-NWS for East Merrimack NH.