National Weather Service Forecast for: Harmony RI
Issued by: National Weather Service Norton, MA
Updated: 3:27 pm EDT Jul 28, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 64. Southeast wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Slight Chance
T-storms then
Chance
Showers
 Wednesday

Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 73. Southeast wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Showers

 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm. Low around 61. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Showers

 Thursday

Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 71. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers

 Thursday
Night
Thursday Night: Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 60. North wind around 7 mph. Chance of precipitation is 60%.
Showers
Likely then
Mostly Cloudy
 Friday

Friday: A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 77. North wind 5 to 7 mph. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
 Friday
Night
Friday Night: Mostly clear, with a low around 61. Light and variable wind.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Sunny

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 64. Southwest wind 3 to 5 mph.
Mostly Cloudy
Lo 64 °F Hi 73 °F Lo 61 °F Hi 71 °F Lo 60 °F Hi 77 °F Lo 61 °F Hi 81 °F Lo 64 °F

Flood Watch
 

Tonight
 
 A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 64. Southeast wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 73. Southeast wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
 
 Showers and possibly a thunderstorm. Low around 61. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 71. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
 
 Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 60. North wind around 7 mph. Chance of precipitation is 60%.
Friday
 
 A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 77. North wind 5 to 7 mph. Chance of precipitation is 20%.
Friday Night
 
 Mostly clear, with a low around 61. Light and variable wind.
Saturday
 
 Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
 
 Mostly cloudy, with a low around 64. Southwest wind 3 to 5 mph.
Sunday
 
 Partly sunny, with a high near 81. South wind 5 to 8 mph.
Sunday Night
 
 A chance of showers. Mostly cloudy, with a low around 65. Southwest wind around 6 mph. Chance of precipitation is 30%.
Monday
 
 A chance of showers. Partly sunny, with a high near 80. Southwest wind around 6 mph. Chance of precipitation is 40%.
Monday Night
 
 A chance of showers. Mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 30%.
Tuesday
 
 Mostly sunny, with a high near 82. North wind around 5 mph.

 

Forecast from NOAA-NWS for Harmony RI.