National Weather Service Forecast for: Barrington NH
Issued by: National Weather Service Gray/Portland, ME
Updated: 2:25 am EDT Aug 20, 2026
 
Today

Today: Increasing clouds, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.
Increasing
Clouds
 Tonight

Tonight: A 20 percent chance of showers between 11pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 58. Calm wind becoming north around 5 mph.
Slight Chance
Showers then
Mostly Cloudy
 Friday

Friday: Mostly sunny, with a high near 79. Northeast wind around 5 mph becoming east in the afternoon.
Mostly Sunny

 Friday
Night
Friday Night: A 30 percent chance of showers after 3am. Increasing clouds, with a low around 56. Calm wind.
Partly Cloudy
then Chance
Showers
 Saturday

Saturday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 72. East wind 5 to 10 mph. Chance of precipitation is 60%.
Showers
Likely
 Saturday
Night
Saturday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Showers
Likely
 Sunday

Sunday: A 50 percent chance of showers. Mostly cloudy, with a high near 79.
Chance
Showers
 Sunday
Night
Sunday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 60.
Chance
Showers
 Monday

Monday: Mostly sunny, with a high near 80.
Mostly Sunny
Hi 84 °F Lo 58 °F Hi 79 °F Lo 56 °F Hi 72 °F Lo 58 °F Hi 79 °F Lo 60 °F Hi 80 °F

 

Today
 
 Increasing clouds, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.
Tonight
 
 A 20 percent chance of showers between 11pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 58. Calm wind becoming north around 5 mph.
Friday
 
 Mostly sunny, with a high near 79. Northeast wind around 5 mph becoming east in the afternoon.
Friday Night
 
 A 30 percent chance of showers after 3am. Increasing clouds, with a low around 56. Calm wind.
Saturday
 
 Showers likely, mainly after 2pm. Mostly cloudy, with a high near 72. East wind 5 to 10 mph. Chance of precipitation is 60%.
Saturday Night
 
 Showers likely, mainly before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Sunday
 
 A 50 percent chance of showers. Mostly cloudy, with a high near 79.
Sunday Night
 
 A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 60.
Monday
 
 Mostly sunny, with a high near 80.
Monday Night
 
 Mostly clear, with a low around 55.
Tuesday
 
 Sunny, with a high near 79.
Tuesday Night
 
 Mostly clear, with a low around 56.
Wednesday
 
 Sunny, with a high near 81.

 

Forecast from NOAA-NWS for Barrington NH.