National Weather Service Forecast for: Newington CT
Issued by: National Weather Service Norton, MA
Updated: 5:34 am EDT Jun 30, 2026
 
Today

Today: Mostly sunny, with a high near 89. South wind 6 to 10 mph.
Mostly Sunny

 Tonight

Tonight: A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 70. South wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Chance
Showers
 Wednesday

Wednesday: A slight chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 102. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 75. South wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 30%.
Chance
Showers

 Thursday

Thursday: Sunny and hot, with a high near 100. Light and variable wind becoming west 5 to 10 mph in the morning.
Hot

 Thursday
Night
Thursday Night: Clear, with a low around 77. Southwest wind 5 to 7 mph becoming calm in the evening.
Clear

 Friday

Friday: Sunny and hot, with a high near 100. Light west wind increasing to 6 to 11 mph in the morning.
Hot

 Friday
Night
Friday Night: Mostly clear, with a low around 74. Northwest wind 5 to 7 mph becoming calm in the evening.
Mostly Clear

 Independence
Day
Independence Day: A chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 97. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 30%.
Mostly Sunny
then Chance
T-storms
Hi 89 °F Lo 70 °F Hi 95 °F Lo 75 °F Hi 100 °F Lo 77 °F Hi 100 °F Lo 74 °F Hi 97 °F

Air Quality Alert
Extreme Heat Warning
 

Today
 
 Mostly sunny, with a high near 89. South wind 6 to 10 mph.
Tonight
 
 A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 70. South wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
 A slight chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 102. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Wednesday Night
 
 A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 75. South wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
 
 Sunny and hot, with a high near 100. Light and variable wind becoming west 5 to 10 mph in the morning.
Thursday Night
 
 Clear, with a low around 77. Southwest wind 5 to 7 mph becoming calm in the evening.
Friday
 
 Sunny and hot, with a high near 100. Light west wind increasing to 6 to 11 mph in the morning.
Friday Night
 
 Mostly clear, with a low around 74. Northwest wind 5 to 7 mph becoming calm in the evening.
Independence Day
 
 A chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 97. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 30%.
Saturday Night
 
 A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Partly cloudy, with a low around 74. Northwest wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday
 
 Mostly sunny and hot, with a high near 93. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
 
 A chance of showers. Partly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Newington CT.