Weather in Groton, CT
Updated 2026-08-11 13:00 local time · ZIP codes 06340
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
79°3% rain89°3% rain90°3% rain88°2% rain87°2% rain83°2% rain80°4% rain
76°6% rain74°7% rain73°9% rain72°8% rain71°10% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 10%).
It feels like 81°F with winds near 10 mph.
76°F, 6% rain chance and 7 mph wind.
Visibility is around 10 mi; gusts may reach 21 mph.
Current temperature is 79°F, wind 10 mph, rain chance up to 10%.
UV index is 6. Sunscreen, shade and protective clothing are recommended.
Groton weather today
Sunny and 79°F in Groton, CT. Today's high is 90°F with a 7% rain chance. Winds are around 10 mph with gusts near 14 mph. Relative humidity is 79%, pressure is 29.82 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Groton
Sunrise is at 05:53 AM and sunset is at 07:53 PM. Tomorrow's forecast calls for Sunny with a high near 79°F and a low near 66°F. The maximum rain chance is 57%.