National Weather Service Forecast for: Windham NH
Issued by: National Weather Service Gray/Portland, ME
Updated: 5:30 am EDT Jun 22, 2026
 
Today

Today: Showers likely, mainly between 4pm and 5pm, then rain after 5pm. High near 78. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Mostly Cloudy
then Rain
 Tonight

Tonight: Rain and possibly a thunderstorm, mainly before 5am, then scattered showers and thunderstorms after 5am. Low around 57. Southeast wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Showers
 Tuesday

Tuesday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 77. South wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Showers
Likely
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 57. Northwest wind around 5 mph.
Partly Cloudy
 Wednesday

Wednesday: Sunny, with a high near 79. Northwest wind 5 to 10 mph.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 59.
Mostly Clear
 Thursday

Thursday: Mostly sunny, with a high near 82.
Mostly Sunny
 Thursday
Night
Thursday Night: A 50 percent chance of showers after 11pm. Mostly cloudy, with a low around 60.
Chance
Showers
 Friday

Friday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Showers
Likely
Hi 78 °F Lo 57 °F Hi 77 °F Lo 57 °F Hi 79 °F Lo 59 °F Hi 82 °F Lo 60 °F Hi 81 °F

 

Today
 
 Showers likely, mainly between 4pm and 5pm, then rain after 5pm. High near 78. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
 
 Rain and possibly a thunderstorm, mainly before 5am, then scattered showers and thunderstorms after 5am. Low around 57. Southeast wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
 
 Showers likely, mainly before 1pm. Mostly cloudy, with a high near 77. South wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
 
 Partly cloudy, with a low around 57. Northwest wind around 5 mph.
Wednesday
 
 Sunny, with a high near 79. Northwest wind 5 to 10 mph.
Wednesday Night
 
 Mostly clear, with a low around 59.
Thursday
 
 Mostly sunny, with a high near 82.
Thursday Night
 
 A 50 percent chance of showers after 11pm. Mostly cloudy, with a low around 60.
Friday
 
 Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Friday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Saturday
 
 Mostly sunny, with a high near 83.
Saturday Night
 
 Partly cloudy, with a low around 62.
Sunday
 
 Sunny, with a high near 84.

 

Forecast from NOAA-NWS for Windham NH.