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

Today: Areas of fog before 10am. Otherwise, increasing clouds, with a high near 80. Calm wind becoming west around 5 mph.
Areas Fog
then Cloudy
 Tonight

Tonight: Patchy fog after 3am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 52. Calm wind.
Mostly Cloudy
then Patchy
Fog
 Friday

Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 81. Calm wind.
Patchy Fog
then Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 55. Calm wind.
Partly Cloudy

 Saturday

Saturday: A 50 percent chance of showers after 8am. Mostly cloudy, with a high near 75. Calm wind becoming southeast around 5 mph in the afternoon.
Chance
Showers
 Saturday
Night
Saturday Night: A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 57.
Chance
Showers
 Sunday

Sunday: A chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Mostly Cloudy
then Showers
Likely
 Sunday
Night
Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 3am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Showers
Likely
 Monday

Monday: A 30 percent chance of showers after 4pm. Mostly sunny, with a high near 79.
Mostly Sunny
then Chance
Showers
Hi 80 °F Lo 52 °F Hi 81 °F Lo 55 °F Hi 75 °F Lo 57 °F Hi 81 °F Lo 56 °F Hi 79 °F

 

Today
 
 Areas of fog before 10am. Otherwise, increasing clouds, with a high near 80. Calm wind becoming west around 5 mph.
Tonight
 
 Patchy fog after 3am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 52. Calm wind.
Friday
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 81. Calm wind.
Friday Night
 
 Partly cloudy, with a low around 55. Calm wind.
Saturday
 
 A 50 percent chance of showers after 8am. Mostly cloudy, with a high near 75. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
 
 A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 57.
Sunday
 
 A chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Sunday Night
 
 Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 3am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Monday
 
 A 30 percent chance of showers after 4pm. Mostly sunny, with a high near 79.
Monday Night
 
 Partly cloudy, with a low around 52.
Tuesday
 
 Mostly sunny, with a high near 77.
Tuesday Night
 
 Partly cloudy, with a low around 52.
Wednesday
 
 Mostly sunny, with a high near 81.

 

Forecast from NOAA-NWS for Hanover NH.