National Weather Service Forecast for: Oakville CT
Issued by: National Weather Service Albany, NY
Updated: 2:48 am EDT Aug 20, 2026
 
Today

Today: A chance of showers, mainly after 4pm. Increasing clouds, with a high near 79. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunny then
Chance
Showers
 Tonight

Tonight: Showers likely, mainly before 9pm. Mostly cloudy, with a low around 56. Light north wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Showers
Likely

 Friday

Friday: Partly sunny, with a high near 75. Northeast wind around 8 mph.
Partly Sunny

 Friday
Night
Friday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 60. Light northeast wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Slight Chance
Showers then
Chance
Showers
 Saturday

Saturday: Showers likely before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then showers after 5pm. High near 73. Northeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Showers

 Saturday
Night
Saturday Night: Showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 61. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers then
Chance
Showers
 Sunday

Sunday: Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Mostly Cloudy
then Showers
Likely
 Sunday
Night
Sunday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 60%.
Showers
Likely then
Partly Cloudy
 Monday

Monday: Sunny, with a high near 78.
Sunny
Hi 79 °F Lo 56 °F Hi 75 °F Lo 60 °F Hi 73 °F Lo 61 °F Hi 79 °F Lo 58 °F Hi 78 °F

 

Today
 
 A chance of showers, mainly after 4pm. Increasing clouds, with a high near 79. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
 
 Showers likely, mainly before 9pm. Mostly cloudy, with a low around 56. Light north wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Friday
 
 Partly sunny, with a high near 75. Northeast wind around 8 mph.
Friday Night
 
 A chance of showers, mainly after 2am. Mostly cloudy, with a low around 60. Light northeast wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
 
 Showers likely before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then showers after 5pm. High near 73. Northeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
 
 Showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 61. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
 
 Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Sunday Night
 
 Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 60%.
Monday
 
 Sunny, with a high near 78.
Monday Night
 
 Mostly clear, with a low around 55.
Tuesday
 
 Sunny, with a high near 77.
Tuesday Night
 
 Mostly clear, with a low around 56.
Wednesday
 
 Sunny, with a high near 79.

 

Forecast from NOAA-NWS for Oakville CT.