National Weather Service Forecast for: Rochester 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 57. Calm wind.
Slight Chance
Showers then
Mostly Cloudy
 Friday

Friday: A slight chance of showers between noon and 1pm. Mostly sunny, with a high near 80. Northeast wind around 5 mph becoming east in the afternoon. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
Showers
 Friday
Night
Friday Night: A 30 percent chance of showers after 3am. Increasing clouds, with a low around 55. Calm wind.
Partly Cloudy
then Chance
Showers
 Saturday

Saturday: Showers likely, mainly after 3pm. Mostly cloudy, with a high near 73. 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 57. 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 59.
Chance
Showers

 Monday

Monday: Mostly sunny, with a high near 81.
Mostly Sunny
Hi 84 °F Lo 57 °F Hi 80 °F Lo 55 °F Hi 73 °F Lo 57 °F Hi 79 °F Lo 59 °F Hi 81 °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 57. Calm wind.
Friday
 
 A slight chance of showers between noon and 1pm. Mostly sunny, with a high near 80. Northeast wind around 5 mph becoming east in the afternoon. Chance of precipitation is 20%.
Friday Night
 
 A 30 percent chance of showers after 3am. Increasing clouds, with a low around 55. Calm wind.
Saturday
 
 Showers likely, mainly after 3pm. Mostly cloudy, with a high near 73. East wind 5 to 10 mph. Chance of precipitation is 60%.
Saturday Night
 
 Showers likely, mainly before 2am. Mostly cloudy, with a low around 57. 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 59.
Monday
 
 Mostly sunny, with a high near 81.
Monday Night
 
 Mostly clear, with a low around 54.
Tuesday
 
 Sunny, with a high near 79.
Tuesday Night
 
 Mostly clear, with a low around 55.
Wednesday
 
 Sunny, with a high near 81.

 

Forecast from NOAA-NWS for Rochester NH.